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Calderón-Villarreal A, Avelar Portillo LJ, Abramovitz D, Goldenberg S, Flanigan S, Quintana PJE, Harvey-Vera A, Vera CF, Rangel G, Strathdee SA, Kayser GL. A brief instrument measuring the water, sanitation and hygiene domain of menstrual health among women who inject drugs. PLoS One 2024; 19:e0303378. [PMID: 38728343 PMCID: PMC11086918 DOI: 10.1371/journal.pone.0303378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 04/23/2024] [Indexed: 05/12/2024] Open
Abstract
BACKGROUND Domains of adequate menstrual health (MH) include access to water, sanitation, and hygiene (WASH). People who menstruate with social disadvantages-such as homelessness or drug injection practices-often face barriers to WASH access. However, validated instruments to measure MH are limited among marginalized populations, and available instruments involve lengthy surveys. We developed and evaluated psychometric properties of a novel 'MH WASH Domain Scale-12' among people who menstruate and who inject drugs in the Tijuana-San Diego region and identified correlates of MH access using this scale. METHODS We constructed a MH-scale based on access to twelve WASH-related items: (1) menstrual products, (2) body hygiene (bathing per week), (3) water sources for bathing, (4) improved, (5) non-shared, (6) available, (7) private, (8) nearby, (9) and safe sanitation facilities, (10) availability of soap, (11) water source for handwashing, and (12) handwashing facilities with soap/water. Variables were dichotomized and summed, with scores ranging from 0-12 points and higher scores indicating better MH access. We assessed the scale's reliability and construct and content validity using data from a binational cross-sectional study. The sample included people who inject drugs (PWID) who had ever menstruated in their lifetime and were 18+ during 2020-2021. MH-WASH items were described, and the scale was further used as an outcome variable to identify correlates. RESULTS Among 125 (124 cis-female and 1 trans-male) PWID that reported menstruating, our 'MH WASH Domain Scale-12' was reliable (Cronbach's alpha = 0.81, McDonald's Omega total = 0.83) and valid. We identified two sub-domains: Factor-1 included items describing 'WASH availability' and Factor-2 contained items related to 'WASH security'-encompassing physical and biological safety. Scale scores were significantly lower among participants experiencing unsheltered homelessness compared to participants experiencing sheltered homelessness or living in permanent housing. CONCLUSION We constructed and validated a novel and reliable scale to measure MH-related WASH access that can be used to assess MH among marginalized populations in English- and Spanish-speaking contexts. Using this scale we identified disparities in MH-WASH access among PWID and who menstruate in the US-Mexico border region.
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Affiliation(s)
- Alhelí Calderón-Villarreal
- Herbert Wertheim School of Public Health and Human Longevity Science, University of California San Diego (UCSD), San Diego, California, United States of America
- School of Public Health, San Diego State University (SDSU), San Diego, California, United States of America
| | - Lourdes Johanna Avelar Portillo
- Benioff Homelessness and Housing Initiative, School of Medicine, University of California, San Francisco, San Francisco, California, United States of America
- Division of Global Health, Herbert Wertheim School of Public Health and Human Longevity Science, UCSD, San Diego, California, United States of America
| | - Daniela Abramovitz
- Department of Medicine, Division of Infectious Diseases and Global Public Health, UCSD, San Diego, California, United States of America
| | - Shira Goldenberg
- School of Public Health, San Diego State University (SDSU), San Diego, California, United States of America
| | - Shawn Flanigan
- School of Public Affairs, SDSU, San, Diego, California, United States of America
| | - Penelope J. E. Quintana
- School of Public Health, San Diego State University (SDSU), San Diego, California, United States of America
| | - Alicia Harvey-Vera
- Department of Medicine, Division of Infectious Diseases and Global Public Health, UCSD, San Diego, California, United States of America
- Universidad de Xochicalco, Tijuana, Baja California, Mexico
| | - Carlos F. Vera
- Division of Global Health, Herbert Wertheim School of Public Health and Human Longevity Science, UCSD, San Diego, California, United States of America
| | - Gudelia Rangel
- El Colegio de la Frontera Norte, Tijuana, Baja California, Mexico
- Border Health Commission, Tijuana, Baja California, Mexico
| | - Steffanie A. Strathdee
- Department of Medicine, Division of Infectious Diseases and Global Public Health, UCSD, San Diego, California, United States of America
| | - Georgia L. Kayser
- Benioff Homelessness and Housing Initiative, School of Medicine, University of California, San Francisco, San Francisco, California, United States of America
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Calderón-Villarreal A, Avelar Portillo LJ, Abramovitz D, Goldenberg S, Flanigan S, Quintana PJE, Harvey-Vera A, Vera CF, Rangel G, Strathdee SA, Kayser GL. Water, sanitation, and hygiene access among people who inject drugs in Tijuana and San Diego in 2020-2021: a cross-sectional study. Int J Equity Health 2024; 23:79. [PMID: 38644494 PMCID: PMC11034064 DOI: 10.1186/s12939-024-02163-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 03/27/2024] [Indexed: 04/23/2024] Open
Abstract
BACKGROUND Water, sanitation, and hygiene (WASH) access is critical to public health and human dignity. People who inject drugs (PWID) experience stigma and structural violence that may limit WASH access. Few studies have assessed WASH access, insecurity, and inequities among PWID. We describe WASH access, social and geographic inequalities, and factors associated with WASH insecurity among PWID in the Tijuana-San Diego metropolitan area. METHODS In this cross-sectional binational study, we interviewed PWID (age 18+) in 2020-2021 about WASH access and insecurity. City of residence (Tijuana/San Diego) and housing status were considered as independent variables to describe key WASH access outcomes and to assess as factors associated with WASH insecurity outcomes. Measures of association between outcomes and independent variables were assessed using log modified-Poisson regression models adjusting for covariates. RESULTS Of 586 PWID (202 Tijuana; 384 San Diego), 89% reported basic access to drinking water, 38% had basic hand hygiene, 28% basic sanitation, and 46% access to bathing, and 38% reported recent open defecation. Participants residing in Tijuana reported significantly higher insecurity in accessing basic drinking water (aRR: 1.68, 95%CI: 1.02-2.76), basic hygiene (aRR: 1.45, 95%CI: 1.28-1.64), and bathing (aRR: 1.21, 95%CI: 1.06-1.39) than those living in San Diego. Participants experiencing unsheltered homelessness experienced significantly higher insecurity in accessing basic drinking water (aRR: 2.03, 95%CI: 1.07-3.86), basic sanitation (aRR: 1.68, 95%CI: 1.48, 1.92), bathing (aRR: 1.84, 95%CI: 1.52-2.22), and improved water sources for cleaning wounds (aRR: 3.12, 95%CI: 1.55-6.29) and for preparing drugs (aRR: 2.58, 95%CI: 1.36-4.89) than participants living in permanent housing. CONCLUSION WASH access among PWID in the Tijuana-San Diego metropolitan area was low by international standards and lower than the national averages in both countries. Homelessness was significantly associated with WASH insecurity in this population. Concentrated efforts are needed to guarantee continuously available WASH services for PWID-especially those who are unsheltered.
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Affiliation(s)
- Alhelí Calderón-Villarreal
- Department of Family and Preventive Medicine, University of California San Diego (UCSD), San Diego, California, USA.
- School of Public Health, San Diego State University (SDSU), San Diego, California, USA.
| | - Lourdes Johanna Avelar Portillo
- Benioff Homelessness and Housing Initiative, School of Medicine, University of California, San Francisco, California, USA
- Division of Global Health, Herbert Wertheim School of Public Health and Human Longevity Science, UCSD, San Diego, California, USA
| | - Daniela Abramovitz
- Department of Medicine, Division of Infectious Diseases and Global Public Health, UCSD, San Diego, California, USA
| | - Shira Goldenberg
- School of Public Health, San Diego State University (SDSU), San Diego, California, USA
| | - Shawn Flanigan
- School of Public Affairs, SDSU, San Diego, California, USA
| | - Penelope J E Quintana
- School of Public Health, San Diego State University (SDSU), San Diego, California, USA
| | - Alicia Harvey-Vera
- Department of Medicine, Division of Infectious Diseases and Global Public Health, UCSD, San Diego, California, USA
- Universidad de Xochicalco, Tijuana, Baja California, Mexico
| | - Carlos F Vera
- Department of Medicine, Division of Infectious Diseases and Global Public Health, UCSD, San Diego, California, USA
| | - Gudelia Rangel
- El Colegio de la Frontera Norte, Tijuana, Baja California, Mexico
- Border Health Commission, Tijuana, Baja California, Mexico
| | - Steffanie A Strathdee
- Department of Medicine, Division of Infectious Diseases and Global Public Health, UCSD, San Diego, California, USA
| | - Georgia L Kayser
- Benioff Homelessness and Housing Initiative, School of Medicine, University of California, San Francisco, California, USA
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Tripathi O, Parada H, Shi Y, Matt GE, Quintana PJE, Liles S, Bellettiere J. Perception of harm is strongly associated with complete ban on in-home cannabis smoking: a cross-sectional study. BMC Public Health 2024; 24:669. [PMID: 38429696 PMCID: PMC10908115 DOI: 10.1186/s12889-024-18072-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 02/12/2024] [Indexed: 03/03/2024] Open
Abstract
BACKGROUND Perception of health risk can influence household rules, but little is known about how the perception of harm from cannabis secondhand smoke (cSHS) is related to having a complete ban on in-home cannabis smoking. We examined this association among a nationally representative sample of United States adults. METHODS Respondents were 21,381 adults from the cross-sectional Marijuana Use and Environmental Survey recruited from December 2019-February 2020. Perceived harm of cSHS exposure (extremely harmful, somewhat harmful, mostly safe, or totally safe) and complete ban of cannabis smoking anywhere in the home (yes or no) were self-reported. Logistic regression for survey-weighted data estimated covariate-adjusted odds ratios (OR) and 95% confidence intervals (CI) for the association between perceived harm of cSHS and complete ban on in-home cannabis smoking. Stratified subgroup analyses (by cannabis smoking status, cannabis use legalization in state of residence, and children under age 6 living in the home) were conducted to quantify effect measure modification of the association between perception of harm and complete ban. RESULTS A complete ban on in-home cannabis smoking was reported by 71.8% of respondents. Eight percent reported cSHS as "totally safe"; 20.5% "mostly safe"; 38.3% "somewhat harmful"; and 33.0% "extremely harmful". Those who reported cSHS as "extremely harmful" had 6 times the odds of a complete ban on in-home cannabis smoking (OR = 6.0, 95%CI = 4.9-7.2) as those reporting smoking as "totally safe". The odds of a complete ban were higher among those reporting cSHS as "somewhat harmful" (OR = 2.6, 95%CI = 2.2-3.1) or "mostly safe" (OR = 1.4, 95%CI = 1.2-1.7) vs those reporting cSHS as "totally safe". In each subgroup of cannabis smoking status, state cannabis use legalization, and children under the age of 6 living in the home, perceived harm was associated with a complete ban on in-home cannabis smoking. CONCLUSIONS Our study demonstrates perceiving cSHS as harmful is strongly associated with having a complete in-home cannabis smoking ban. With almost a third of US adults perceiving cSHS as at least "mostly safe", there is strong need to educate the general population about potential risks associated with cSHS exposure to raise awareness and encourage adoption of household rules prohibiting indoor cannabis smoking.
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Affiliation(s)
- Osika Tripathi
- San Diego State University, School of Public Health, San Diego, California, USA.
- University of California, Herbert Wertheim School of Public Health, San Diego, California, USA.
| | - Humberto Parada
- San Diego State University, School of Public Health, San Diego, California, USA
| | - Yuyan Shi
- University of California, Herbert Wertheim School of Public Health, San Diego, California, USA
| | - Georg E Matt
- San Diego State University, Department of Psychology, San Diego, CA, USA
| | | | - Sandy Liles
- San Diego State University, School of Public Health, San Diego, California, USA
- University of California, Herbert Wertheim School of Public Health, San Diego, California, USA
| | - John Bellettiere
- University of California, Herbert Wertheim School of Public Health, San Diego, California, USA
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Merianos AL, Matt GE, Stone TM, Jandarov RA, Hoh E, Dodder NG, Quintana PJE, Lopez-Galvez N, Stone L, Mahabee-Gittens EM. Contamination of surfaces in children's homes with nicotine and the potent carcinogenic tobacco-specific nitrosamine NNK. J Expo Sci Environ Epidemiol 2023:10.1038/s41370-023-00629-8. [PMID: 38104233 DOI: 10.1038/s41370-023-00629-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 11/29/2023] [Accepted: 11/30/2023] [Indexed: 12/19/2023]
Abstract
BACKGROUND Tobacco smoke exposure (TSE) through secondhand and thirdhand smoke is a modifiable risk factor that contributes to childhood morbidity. Limited research has assessed surface TSE pollution in children's environments as a potential source of thirdhand smoke exposure, and none have examined levels of the tobacco-specific nitrosamine 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK) on surfaces. OBJECTIVE This study measured surface NNK and nicotine in children's homes and associations with sociodemographics and parent-reported TSE behaviors. We assessed correlations of surface NNK and nicotine with dust NNK, dust nicotine, and child cotinine. METHODS Home surface wipe NNK and nicotine data from 84 children who lived with smokers were analyzed. Tobit and simple linear regression analyses were conducted to assess associations of surface NNK and nicotine with child characteristics. Spearman's (ρ) correlations assessed the strength of associations between environmental markers and child cotinine. RESULTS Nearly half (48.8%) of children's home surfaces had detectable NNK and 100% had detectable nicotine. The respective geometric means (GMs) of surface NNK and nicotine loadings were 14.0 ng/m2 and 16.4 µg/m2. Surface NNK positively correlated with surface nicotine (ρ = 0.54, p < 0.001) and dust NNK (ρ = 0.30, p = 0.020). Surface nicotine positively correlated with dust NNK (ρ = 0.42, p < 0.001) and dust nicotine (ρ = 0.24, p = 0.041). Children with household incomes ≤$15,000 had higher surface NNK levels (GM = 18.7 ng/m2, p = 0.017) compared to children with household incomes >$15,000 (GM = 7.1 ng/m2). Children with no home smoking bans had higher surface NNK (GM = 18.1 ng/m2, p = 0.020) and surface nicotine (GM = 17.7 µg/m2, p = 0.019) levels compared to children with smoking bans (GM = 7.5 ng/m2, 4.8 µg/m2, respectively). IMPACT Although nicotine on surfaces is an established marker of thirdhand smoke pollution, other thirdhand smoke contaminants have not been measured on surfaces in the homes of children living with smokers. We provide evidence that the potent carcinogenic tobacco-specific nitrosamine NNK was detectable on surfaces in nearly half of children's homes, and nicotine was detectable on all surfaces. Surface NNK was positively correlated with surface nicotine and dust NNK. Detectable surface NNK levels were found in homes with indoor smoking bans, indicating the role of NNK as a persistent thirdhand smoke pollutant accumulating on surfaces as well as in dust.
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Affiliation(s)
- Ashley L Merianos
- University of Cincinnati, School of Human Services, PO Box 210068, Cincinnati, OH, 45221-0068, USA.
| | - Georg E Matt
- Department of Psychology, San Diego State University, 5500 Campanile Drive, San Diego, CA, 92182-4611, USA
| | - Timothy M Stone
- Department of Environmental and Public Health Sciences, Division of Biostatistics and Bioinformatics, University of Cincinnati, College of Medicine, 160 Panzeca Way, Cincinnati, OH, 45267-0056, USA
| | - Roman A Jandarov
- Department of Environmental and Public Health Sciences, Division of Biostatistics and Bioinformatics, University of Cincinnati, College of Medicine, 160 Panzeca Way, Cincinnati, OH, 45267-0056, USA
| | - Eunha Hoh
- San Diego State University, School of Public Health, 5500 Campanile Drive, San Diego, CA, 92182-4162, USA
| | - Nathan G Dodder
- San Diego State University, School of Public Health, 5500 Campanile Drive, San Diego, CA, 92182-4162, USA
| | - Penelope J E Quintana
- San Diego State University, School of Public Health, 5500 Campanile Drive, San Diego, CA, 92182-4162, USA
| | - Nicolas Lopez-Galvez
- San Diego State University, School of Public Health, 5500 Campanile Drive, San Diego, CA, 92182-4162, USA
| | - Lara Stone
- Cincinnati Children's Hospital Medical Center, Division of Emergency Medicine, University of Cincinnati, College of Medicine, 3333 Burnet Avenue, Cincinnati, OH, 45229-3026, USA
| | - E Melinda Mahabee-Gittens
- Cincinnati Children's Hospital Medical Center, Division of Emergency Medicine, University of Cincinnati, College of Medicine, 3333 Burnet Avenue, Cincinnati, OH, 45229-3026, USA
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Matt GE, Merianos AL, Stone L, Wullenweber C, Quintana PJE, Hoh E, Dodder NG, Lopez Galvez N, Mahabee-Gittens EM. Changes and stability of hand nicotine levels in children of smokers: Associations with urinary biomarkers, reported child tobacco smoke exposure, and home smoking bans. Environ Int 2023; 181:108239. [PMID: 37852151 DOI: 10.1016/j.envint.2023.108239] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 09/13/2023] [Accepted: 09/26/2023] [Indexed: 10/20/2023]
Abstract
BACKGROUND Exposure to thirdhand smoke (THS) residue takes place through inhalation, ingestion, and dermal transfer. Hand nicotine levels have been proposed to measure THS pollution in the environment of children, but little is known about its variability and stability over time and correlates of change. OBJECTIVES The goal was to determine the stability of hand nicotine in comparison to urinary biomarkers and to explore factors that influence changes in hand nicotine. METHODS Data were collected from 0 to 11-year-old children (Mean age = 5.9) who lived with ≥1 tobacco smokers (N = 129). At a 6-week interval, we collected repeated measures of hand nicotine, four urinary biomarkers (cotinine, trans-3'-hydroxycotinine, nicotelline N-oxides, and 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol), and parent-reported child tobacco smoke exposure (TSE). Dependent sample t-tests, correlations, and multivariable regression analyses were conducted to examine the changes in child TSE. RESULTS Hand nicotine levels (r = 0.63, p < 0.001) showed similar correlations between repeated measures to urinary biomarkers (r = 0.58-0.71; p < 0.001). Different from urinary biomarkers, mean hand nicotine levels increased over time (t(113) = 3.37, p < 0.001) being significantly higher in children from homes without smoking bans at Time 2 (p = 0.016) compared to Time 1 (p = 0.003). Changes in hand nicotine correlated with changes in cotinine and trans-3'-hydroxycotinine (r = 0.30 and r = 0.19, respectively, p < 0.05). Children with home smoking bans at Time 1 and 2 showed significantly lower hand nicotine levels compared to children without home smoking bans. DISCUSSION Findings indicate that hand nicotine levels provide additional insights into children's exposure to tobacco smoke pollutants than reported child TSE and urinary biomarkers. Changes in hand nicotine levels show that consistent home smoking bans in homes of children of smokers can lower THS exposure. Hand nicotine levels may be influenced by the environmental settings in which they are collected.
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Affiliation(s)
- Georg E Matt
- Department of Psychology, San Diego State University, San Diego, CA, USA.
| | - Ashley L Merianos
- School of Human Services, University of Cincinnati, Cincinnati, OH, USA
| | - Lara Stone
- Division of Emergency Medicine, Cincinnati Children's Hospital Medical Center, USA
| | - Chase Wullenweber
- Division of Emergency Medicine, Cincinnati Children's Hospital Medical Center, USA
| | | | - Eunha Hoh
- School of Public Health, San Diego State University, San Diego, CA, USA
| | - Nathan G Dodder
- School of Public Health, San Diego State University, San Diego, CA, USA; San Diego State University Research Foundation, San Diego, CA, USA
| | | | - E Melinda Mahabee-Gittens
- Division of Emergency Medicine, Cincinnati Children's Hospital Medical Center, USA; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
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Tang X, Gambier C, López-Gálvez N, Padilla S, Rapp VH, Russell ML, Klivansky LM, Mayorga R, Perrino C, Gundel LA, Hoh E, Dodder NG, Hammond SK, Zhang H, Matt GE, Quintana PJE, Destaillats H. Remediation of Thirdhand Tobacco Smoke with Ozone: Probing Deep Reservoirs in Carpets. Environ Sci Technol 2023. [PMID: 37366549 DOI: 10.1021/acs.est.3c01628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
We assessed the efficacy of ozonation as an indoor remediation strategy by evaluating how a carpet serves as a sink and long-term source of thirdhand tobacco smoke (THS) while protecting contaminants absorbed in deep reservoirs by scavenging ozone. Specimens from unused carpet that was exposed to smoke in the lab ("fresh THS") and contaminated carpets retrieved from smokers' homes ("aged THS") were treated with 1000 ppb ozone in bench-scale tests. Nicotine was partially removed from fresh THS specimens by volatilization and oxidation, but it was not significantly eliminated from aged THS samples. By contrast, most of the 24 polycyclic aromatic hydrocarbons detected in both samples were partially removed by ozone. One of the home-aged carpets was installed in an 18 m3 room-sized chamber, where its nicotine emission rate was 950 ng day-1 m-2. In a typical home, such daily emissions could amount to a non-negligible fraction of the nicotine released by smoking one cigarette. The operation of a commercial ozone generator for a total duration of 156 min, reaching concentrations up to 10,000 ppb, did not significantly reduce the carpet nicotine loading (26-122 mg m-2). Ozone reacted primarily with carpet fibers, rather than with THS, leading to short-term emissions of aldehydes and aerosol particles. Hence, by being absorbed deeply into carpet fibers, THS constituents can be partially shielded from ozonation.
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Affiliation(s)
- Xiaochen Tang
- Indoor Environment Group, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Clément Gambier
- Indoor Environment Group, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Nicolás López-Gálvez
- School of Public Health, San Diego State University, San Diego, California 92182, United States
| | - Samuel Padilla
- School of Public Health, San Diego State University, San Diego, California 92182, United States
| | - Vi H Rapp
- Indoor Environment Group, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Marion L Russell
- Indoor Environment Group, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Liana M Klivansky
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Raphael Mayorga
- Department of Chemistry, University of California Riverside, Riverside, California 92521, United States
| | - Charles Perrino
- School of Public Health, University of California Berkeley, Berkeley, California 94720, United States
| | - Lara A Gundel
- Indoor Environment Group, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Eunha Hoh
- School of Public Health, San Diego State University, San Diego, California 92182, United States
| | - Nathan G Dodder
- School of Public Health, San Diego State University, San Diego, California 92182, United States
| | - S Katharine Hammond
- School of Public Health, University of California Berkeley, Berkeley, California 94720, United States
| | - Haofei Zhang
- Department of Chemistry, University of California Riverside, Riverside, California 92521, United States
| | - George E Matt
- Department of Psychology, San Diego State University, San Diego, California 92182, United States
| | - Penelope J E Quintana
- School of Public Health, San Diego State University, San Diego, California 92182, United States
| | - Hugo Destaillats
- Indoor Environment Group, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
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Matt GE, Greiner L, Record RA, Wipfli H, Long J, Dodder NG, Hoh E, Lopez Galvez N, Novotny TE, Quintana PJE, Destaillats H, Tang X, Snijders AM, Mao JH, Hang B, Schick S, Jacob P, Talbot P, Mahabee-Gittens EM, Merianos AL, Northrup TF, Gundel L, Benowitz NL. Policy-relevant differences between secondhand and thirdhand smoke: strengthening protections from involuntary exposure to tobacco smoke pollutants. Tob Control 2023:tc-2023-057971. [PMID: 37263783 DOI: 10.1136/tc-2023-057971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 05/16/2023] [Indexed: 06/03/2023]
Abstract
Starting in the 1970s, individuals, businesses and the public have increasingly benefited from policies prohibiting smoking indoors, saving thousands of lives and billions of dollars in healthcare expenditures. Smokefree policies to protect against secondhand smoke exposure, however, do not fully protect the public from the persistent and toxic chemical residues from tobacco smoke (also known as thirdhand smoke) that linger in indoor environments for years after smoking stops. Nor do these policies address the economic costs that individuals, businesses and the public bear in their attempts to remediate this toxic residue. We discuss policy-relevant differences between secondhand smoke and thirdhand smoke exposure: persistent pollutant reservoirs, pollutant transport, routes of exposure, the time gap between initial cause and effect, and remediation and disposal. We examine four policy considerations to better protect the public from involuntary exposure to tobacco smoke pollutants from all sources. We call for (a) redefining smokefree as free of tobacco smoke pollutants from secondhand and thirdhand smoke; (b) eliminating exemptions to comprehensive smoking bans; (c) identifying indoor environments with significant thirdhand smoke reservoirs; and (d) remediating thirdhand smoke. We use the case of California as an example of how secondhand smoke-protective laws may be strengthened to encompass thirdhand smoke protections. The health risks and economic costs of thirdhand smoke require that smokefree policies, environmental protections, real estate and rental disclosure policies, tenant protections, and consumer protection laws be strengthened to ensure that the public is fully protected from and informed about the risks of thirdhand smoke exposure.
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Affiliation(s)
- Georg E Matt
- Department of Psychology, San Diego State University, San Diego, CA, USA
| | - Lydia Greiner
- Department of Psychology, San Diego State University, San Diego, CA, USA
| | - Rachael A Record
- School of Communication, San Diego State University, San Diego, CA, USA
| | - Heather Wipfli
- Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Jamie Long
- Public Health Law Center, Mitchell Hamline School of Law, University of Minnesota, St Paul, MN, USA
| | - Nathan G Dodder
- School of Public Health, San Diego State University, San Diego, CA, USA
| | - Eunha Hoh
- School of Public Health, San Diego State University, San Diego, CA, USA
| | | | - Thomas E Novotny
- School of Public Health, San Diego State University, San Diego, CA, USA
| | | | - Hugo Destaillats
- Indoor Environment Group, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Xiaochen Tang
- Indoor Environment Group, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Antoine M Snijders
- Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Jian-Hua Mao
- Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Bo Hang
- Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Suzaynn Schick
- School of Medicine, University of California San Francisco, San Francisco, CA, USA
| | - Peyton Jacob
- School of Medicine, University of California San Francisco, San Francisco, CA, USA
| | - Prue Talbot
- Department of Molecular, Cell, and Systems Biology, University of California Riverside, Riverside, CA, USA
| | - E Melinda Mahabee-Gittens
- Department of Pediatrics, Division of Emergency Medicine Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Ashley L Merianos
- School of Human Services, University of Cincinnati, Cincinnati, OH, USA
| | - Thomas F Northrup
- Department of Family & Community Medicine, University of Texas Health Science Center at Houston, McGovern Medical School, Houston, TX, USA
| | - Lara Gundel
- Indoor Environment Group, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Neal L Benowitz
- School of Medicine, University of California San Francisco, San Francisco, CA, USA
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Van Horne YO, Alcala CS, Peltier RE, Quintana PJE, Seto E, Gonzales M, Johnston JE, Montoya LD, Quirós-Alcalá L, Beamer PI. An applied environmental justice framework for exposure science. J Expo Sci Environ Epidemiol 2023; 33:1-11. [PMID: 35260805 PMCID: PMC8902490 DOI: 10.1038/s41370-022-00422-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 02/08/2022] [Accepted: 02/10/2022] [Indexed: 05/28/2023]
Abstract
On the 30th anniversary of the Principles of Environmental Justice established at the First National People of Color Environmental Leadership Summit in 1991 (Principles of Environmental Justice), we continue to call for these principles to be more widely adopted. We propose an environmental justice framework for exposure science to be implemented by all researchers. This framework should be the standard and not an afterthought or trend dismissed by those who believe that science should not be politicized. Most notably, this framework should be centered on the community it seeks to serve. Researchers should meet with community members and stakeholders to learn more about the community, involve them in the research process, collectively determine the environmental exposure issues of highest concern for the community, and develop sustainable interventions and implementation strategies to address them. Incorporating community "funds of knowledge" will also inform the study design by incorporating the knowledge about the issue that community members have based on their lived experiences. Institutional and funding agency funds should also be directed to supporting community needs both during the "active" research phase and at the conclusion of the research, such as mechanisms for dissemination, capacity building, and engagement with policymakers. This multidirectional framework for exposure science will increase the sustainability of the research and its impact for long-term success.
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Affiliation(s)
- Yoshira Ornelas Van Horne
- Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, 2001 N. Soto Street, Los Angeles, CA, 90032, USA.
| | - Cecilia S Alcala
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, 17 East 102 Street, New York, NY, 10029, USA
| | - Richard E Peltier
- School of Public Health & Health Sciences, University of Massachusetts Amherst, 686 North Pleasant Street, Room 175, Amherst, MA, 01003, USA
| | - Penelope J E Quintana
- School of Public Health, San Diego State University, 5500 Campanile Dr., San Diego, CA, 92182, USA
| | - Edmund Seto
- Department of Environmental & Occupational Health Sciences, School of Public Health, University of Washington, Roosevelt One Building, 4225 Roosevelt Way NE, Suite 100, Seattle, WA, 98195, USA
| | - Melissa Gonzales
- Department of Internal Medicine, University of New Mexico School of Medicine, MSC10 5550 Epidemiology, Albuquerque, NM, 87111, USA
| | - Jill E Johnston
- Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, 2001 N. Soto Street, Los Angeles, CA, 90032, USA
| | | | - Lesliam Quirós-Alcalá
- Department of Environmental Health and Engineering, Bloomberg School of Public Health, Johns Hopkins University, 615N. Wolfe Street, Baltimore, MD, 21205, USA
| | - Paloma I Beamer
- Department of Community, Environment and Policy, Mel and Enid Zuckerman College of Public Health, University of Arizona, 1295N. Martin Ave., Tucson, AZ, 85724, USA
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9
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Mahabee-Gittens EM, Merianos AL, Stone L, Wullenweber CA, Quintana PJE, Hoh E, Dodder NG, Lopez-Galvez N, Matt GE. Hand nicotine as an independent marker of thirdhand smoke pollution in children's environments. Sci Total Environ 2022; 849:157914. [PMID: 35952873 PMCID: PMC10199779 DOI: 10.1016/j.scitotenv.2022.157914] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/22/2022] [Accepted: 08/04/2022] [Indexed: 05/23/2023]
Abstract
BACKGROUND Hand nicotine (HN) levels measure children's exposure to tobacco smoke pollutants from thirdhand and secondhand smoke. HN is associated with urinary and salivary cotinine, but the associations of HN with other tobacco smoke exposure (TSE) markers remain unknown. OBJECTIVES We compared levels of HN and four urinary TSE biomarkers: cotinine, trans-3'-hydroxycotinine (3HC), nicotelline N-oxides, and 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol (NNAL), and children's sociodemographic and TSE patterns. We also examined if HN is a plausible pathway for children's exposure to active smoking. METHODS Data were collected from 175 non-smoking patients (Mean (SD) age = 5.4 (3.4) years) who lived with ≥1 cigarette smoker(s). HN and TSE biomarker levels were determined using LC-MS/MS. Multivariate and multivariable regression analyses were conducted to examine associations between TSE markers and parent-reported measures, controlling for sociodemographics. RESULTS Of the five markers of TSE, cotinine (R2 = 0.221; p = 0.003) and HN (R2 = 0.247; p = 0.001) showed the strongest overall associations. Of the five markers, only cotinine showed significantly higher levels among Black children (β^=0.307,p<0.05) independent of age, reported exposure, and home smoking bans. Cotinine (β^=0.010,p<0.05), NNAL (β^=0.012,p<0.05), and HN (β^=0.011,p<0.05) showed significant positive associations with reported exposure independent of race, age, and home smoking bans. NNAL (β^=-0.285,p<0.05) and HN (β^=-0.336,p<0.05), but not cotinine, 3HC, and N-oxides, showed significantly lower levels among children who lived in homes with smoking bans. Child age, hand surface area, home smoking ban, and reported exposure independently accounted for 21 % of the variance in HN levels (p = 0.002). HN accounted for 30 % of the variance in cotinine independent of child race and child age. DISCUSSION HN levels were associated with modifiable tobacco-related behaviors and shows promise as a marker of sources of THS pollution in a child's environment not captured by measurement of urinary cotinine alone. HN levels provide additional information about TSE, complementing other biomarkers when assessing children's overall TSE.
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Affiliation(s)
- E Melinda Mahabee-Gittens
- Division of Emergency Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA.
| | - Ashley L Merianos
- School of Human Services, University of Cincinnati, Cincinnati, OH, USA
| | - Lara Stone
- Division of Emergency Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Chase A Wullenweber
- Division of Emergency Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | | | - Eunha Hoh
- School of Public Health, San Diego State University, San Diego, CA, USA
| | - Nathan G Dodder
- School of Public Health, San Diego State University, San Diego, CA, USA; San Diego State University Research Foundation, San Diego, CA, USA
| | - Nicolas Lopez-Galvez
- School of Public Health, San Diego State University, San Diego, CA, USA; San Diego State University Research Foundation, San Diego, CA, USA
| | - Georg E Matt
- Department of Psychology, San Diego State University, San Diego, CA, USA
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10
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Northrup TF, Stotts AL, Suchting R, Khan AM, Klawans MR, Green C, Hoh E, Hovell MF, Matt GE, Quintana PJE. Handwashing Results in Incomplete Nicotine Removal from Fingers of Individuals who Smoke: A Randomized Controlled Experiment. Am J Perinatol 2022; 39:1634-1642. [PMID: 34634832 DOI: 10.1055/s-0041-1736287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
OBJECTIVE Tobacco residue, also known as third-hand smoke (THS), contains toxicants and lingers in dust and on surfaces and clothes. THS also remains on hands of individuals who smoke, with potential transfer to infants during visitation while infants are hospitalized in neonatal intensive care units (NICUs), raising concerns (e.g., hindered respiratory development) for vulnerable infants. Previously unexplored, this study tested handwashing (HW) and sanitization efficacy for finger-nicotine removal in a sample of adults who smoked and were visiting infants in an NICU. STUDY DESIGN A cross-sectional sample was recruited to complete an interview, carbon monoxide breath samples, and three nicotine wipes of separate fingers (thumb, index, and middle). Eligible participants (n = 14) reported current smoking (verified with breath samples) and were randomly assigned to 30 seconds of HW (n = 7) or alcohol-based sanitization (n = 7), with the order of finger wipes both counterbalanced and randomly assigned. After randomization, the first finger was wiped for nicotine. Participants then washed or sanitized their hands and finger two was wiped 5 minutes later. An interview assessing tobacco/nicotine use and exposure was then administered, followed by a second breath sample and the final finger wipe (40-60 minutes after washing/sanitizing). RESULTS Generalized linear mixed models found that HW was more effective than sanitizer for nicotine removal but failed to completely remove nicotine. CONCLUSIONS Without proper protections (e.g., wearing gloves and gowns), NICU visitors who smoke may inadvertently expose infants to THS. Research on cleaning protocols are needed to protect vulnerable medical populations from THS and associated risks. KEY POINTS · NICU infants may be exposed to THS via visitors.. · THS is not eliminated by HW or sanitizing.. · THS removal protections for NICU infants are needed..
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Affiliation(s)
- Thomas F Northrup
- Department of Family and Community Medicine, The University of Texas Health Science Center at Houston (UTHealth), McGovern Medical School, Houston, Texas
| | - Angela L Stotts
- Department of Family and Community Medicine, Department of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at Houston (UTHealth), McGovern Medical School, Houston, Texas
| | - Robert Suchting
- Department of Psychiatry and Behavioral Sciences, UTHealth, McGovern Medical School, Houston, Texas
| | - Amir M Khan
- Department of Pediatrics, The University of Texas Health Science Center at Houston (UTHealth), McGovern Medical School, Houston, Texas
| | - Michelle R Klawans
- Department of Family and Community Medicine, The University of Texas Health Science Center at Houston (UTHealth), McGovern Medical School, Houston, Texas
| | - Charles Green
- Department of Pediatrics, Center for Clinical Research and Evidence-Based Medicine, The University of Texas Health Science Center at Houston (UTHealth), McGovern Medical School, Houston, Texas
| | - Eunha Hoh
- Division of Environmental Health, School of Public Health, San Diego State University, San Diego, California
| | - Melbourne F Hovell
- Center for Behavioral Epidemiology and Community Health, Graduate School of Public Health, Division of Health Promotion and Behavioral Science, San Diego State University, San Diego, California
| | - Georg E Matt
- Department of Psychology, San Diego State University, San Diego, California
| | - Penelope J E Quintana
- Division of Environmental Health, School of Public Health, San Diego State University, San Diego, California
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11
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Tang X, Benowitz N, Gundel L, Hang B, Havel CM, Hoh E, Jacob Iii P, Mao JH, Martins-Green M, Matt GE, Quintana PJE, Russell ML, Sarker A, Schick SF, Snijders AM, Destaillats H. Thirdhand Exposures to Tobacco-Specific Nitrosamines through Inhalation, Dust Ingestion, Dermal Uptake, and Epidermal Chemistry. Environ Sci Technol 2022; 56:12506-12516. [PMID: 35900278 DOI: 10.1021/acs.est.2c02559] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Tobacco-specific nitrosamines (TSNAs) are emitted during smoking and form indoors by nitrosation of nicotine. Two of them, N'-nitrosonornicotine (NNN) and 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK), are human carcinogens with No Significant Risk Levels (NSRLs) of 500 and 14 ng day-1, respectively. Another TSNA, 4-(methylnitrosamino)-4-(3-pyridyl) butanal (NNA), shows genotoxic and mutagenic activity in vitro. Here, we present additional evidence of genotoxicity of NNA, an assessment of TSNA dermal uptake, and predicted exposure risks through different pathways. Dermal uptake was investigated by evaluating the penetration of NNK and nicotine through mice skin. Comparable mouse urine metabolite profiles suggested that both compounds were absorbed and metabolized via similar mechanisms. We then investigated the effects of skin constituents on the reaction of adsorbed nicotine with nitrous acid (epidermal chemistry). Higher TSNA concentrations were formed on cellulose and cotton substrates that were precoated with human skin oils and sweat compared to clean substrates. These results were combined with reported air, dust, and surface concentrations to assess NNK intake. Five different exposure pathways exceeded the NSRL under realistic scenarios, including inhalation, dust ingestion, direct dermal contact, gas-to-skin deposition, and epidermal nitrosation of nicotine. These results illustrate potential long-term health risks for nonsmokers in homes contaminated with thirdhand tobacco smoke.
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Affiliation(s)
- Xiaochen Tang
- Indoor Environment Group, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Neal Benowitz
- Clinical Pharmacology Program, Division of Cardiology, Department of Medicine, University of California San Francisco, San Francisco, California 94143, United States
| | - Lara Gundel
- Indoor Environment Group, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Bo Hang
- Bioengineering & Biomedical Sciences Department, Biological Systems & Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Christopher M Havel
- Clinical Pharmacology Program, Division of Cardiology, Department of Medicine, University of California San Francisco, San Francisco, California 94143, United States
| | - Eunha Hoh
- School of Public Health, San Diego State University, San Diego, California 92182, United States
| | - Peyton Jacob Iii
- Clinical Pharmacology Program, Division of Cardiology, Department of Medicine, University of California San Francisco, San Francisco, California 94143, United States
| | - Jian-Hua Mao
- Bioengineering & Biomedical Sciences Department, Biological Systems & Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Manuela Martins-Green
- Department of Molecular, Cell and Systems Biology, University of California Riverside, Riverside, California 92506, United States
| | - Georg E Matt
- Department of Psychology, San Diego State University, San Diego, California 92182, United States
| | - Penelope J E Quintana
- School of Public Health, San Diego State University, San Diego, California 92182, United States
| | - Marion L Russell
- Indoor Environment Group, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Altaf Sarker
- Bioengineering & Biomedical Sciences Department, Biological Systems & Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Suzaynn F Schick
- Clinical Pharmacology Program, Division of Cardiology, Department of Medicine, University of California San Francisco, San Francisco, California 94143, United States
| | - Antoine M Snijders
- Bioengineering & Biomedical Sciences Department, Biological Systems & Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Hugo Destaillats
- Indoor Environment Group, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
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12
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Abstract
This cross-sectional study examines the prevalence of and income-related disparities associated with exposure to thirdhand smoke among children.
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Affiliation(s)
- Georg E. Matt
- Department of Psychology, San Diego State University, San Diego, California
| | | | | | - Eunha Hoh
- School of Public Health, San Diego State University, San Diego, California
| | - Nathan G. Dodder
- School of Public Health, San Diego State University, San Diego, California
| | - E. Melinda Mahabee-Gittens
- Division of Emergency Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
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13
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Mahabee-Gittens EM, Quintana PJE, Hoh E, Merianos AL, Stone L, Lopez-Galvez N, Matt GE. Collecting Hand Wipe Samples to Assess Thirdhand Smoke Exposure. Front Public Health 2021; 9:770505. [PMID: 34988051 PMCID: PMC8720752 DOI: 10.3389/fpubh.2021.770505] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 12/02/2021] [Indexed: 11/13/2022] Open
Affiliation(s)
- E. Melinda Mahabee-Gittens
- Division of Emergency Medicine, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States
- *Correspondence: E. Melinda Mahabee-Gittens
| | | | - Eunha Hoh
- School of Public Health, San Diego State University, San Diego, CA, United States
| | - Ashley L. Merianos
- School of Human Services, University of Cincinnati, Cincinnati, OH, United States
| | - Lara Stone
- Division of Emergency Medicine, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Nicolas Lopez-Galvez
- School of Public Health, San Diego State University, San Diego, CA, United States
| | - Georg E. Matt
- Department of Psychology, San Diego State University, San Diego, CA, United States
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14
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Mahabee-Gittens EM, Merianos AL, Jandarov RA, Quintana PJE, Hoh E, Matt GE. Differential associations of hand nicotine and urinary cotinine with children's exposure to tobacco smoke and clinical outcomes. Environ Res 2021; 202:111722. [PMID: 34297932 PMCID: PMC8578289 DOI: 10.1016/j.envres.2021.111722] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 07/13/2021] [Accepted: 07/15/2021] [Indexed: 05/10/2023]
Abstract
BACKGROUND Children's overall tobacco smoke exposure (TSE) consists of both inhalation of secondhand smoke (SHS) and ingestion, dermal uptake, and inhalation of thirdhand smoke (THS) residue from dust and surfaces in their environments. OBJECTIVES Our objective was to compare the different roles of urinary cotinine as a biomarker of recent overall TSE and hand nicotine as a marker of children's contact with nicotine pollution in their environments. We explored the differential associations of these markers with sociodemographics, parental smoking, child TSE, and clinical diagnoses. METHODS Data were collected from 276 pediatric emergency department patients (Median age = 4.0 years) who lived with a cigarette smoker. Children's hand nicotine and urinary cotinine levels were determined using LC-MS/MS. Parents reported tobacco use and child TSE. Medical records were reviewed to assess discharge diagnoses. RESULTS All children had detectable hand nicotine (GeoM = 89.7ng/wipe; 95 % CI = [78.9; 102.0]) and detectable urinary cotinine (GeoM = 10.4 ng/ml; 95%CI = [8.5; 12.6]). Although hand nicotine and urinary cotinine were highly correlated (r = 0.62, p < 0.001), urinary cotinine geometric means differed between racial groups and were higher for children with lower family income (p < 0.05), unlike hand nicotine. Independent of urinary cotinine, age, race, and ethnicity, children with higher hand nicotine levels were at increased risk to have discharge diagnoses of viral/other infectious illness (aOR = 7.49; 95%CI = [2.06; 27.24], p = 0.002), pulmonary illness (aOR = 6.56; 95%CI = [1.76; 24.43], p = 0.005), and bacterial infection (aOR = 5.45; 95%CI = [1.50; 19.85], p = 0.03). In contrast, urinary cotinine levels showed no associations with diagnosis independent of child hand nicotine levels and demographics. DISCUSSION The distinct associations of hand nicotine and urinary cotinine suggest the two markers reflect different exposure profiles that contribute differentially to pediatric illness. Because THS in a child's environment directly contributes to hand nicotine, additional studies of children of smokers and nonsmokers are warranted to determine the role of hand nicotine as a marker of THS exposure and its potential role in the development of tobacco-related pediatric illnesses.
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Affiliation(s)
- E Melinda Mahabee-Gittens
- Division of Emergency Medicine, Cincinnati Children's Hospital Medical Center, College of Medicine, University of Cincinnati, Cincinnati, OH, USA.
| | - Ashley L Merianos
- School of Human Services, University of Cincinnati, Cincinnati, OH, USA
| | - Roman A Jandarov
- Department of Environmental Health, Division of Biostatistics and Bioinformatics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | | | - Eunha Hoh
- School of Public Health, San Diego State University, San Diego, CA, USA
| | - Georg E Matt
- Department of Psychology, San Diego State University, San Diego, CA, USA
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15
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Northrup TF, Stotts AL, Suchting R, Matt GE, Quintana PJE, Khan AM, Green C, Klawans MR, Johnson M, Benowitz N, Jacob P, Hoh E, Hovell MF, Stewart CJ. Thirdhand smoke associations with the gut microbiomes of infants admitted to a neonatal intensive care unit: An observational study. Environ Res 2021; 197:111180. [PMID: 33865820 PMCID: PMC8187318 DOI: 10.1016/j.envres.2021.111180] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 04/06/2021] [Accepted: 04/08/2021] [Indexed: 05/05/2023]
Abstract
INTRODUCTION Microbiome differences have been found in adults who smoke cigarettes compared to non-smoking adults, but the impact of thirdhand smoke (THS; post-combustion tobacco residue) on hospitalized infants' rapidly developing gut microbiomes is unexplored. Our aim was to explore gut microbiome differences in infants admitted to a neonatal ICU (NICU) with varying THS-related exposure. METHODS Forty-three mother-infant dyads (household member[s] smoke cigarettes, n = 32; no household smoking, n = 11) consented to a carbon monoxide-breath sample, bedside furniture nicotine wipes, infant-urine samples (for cotinine [nicotine's primary metabolite] assays), and stool collection (for 16S rRNA V4 gene sequencing). Negative binomial regression modeled relative abundances of 8 bacterial genera with THS exposure-related variables (i.e., household cigarette use, surface nicotine, and infant urine cotinine), controlling for gestational age, postnatal age, antibiotic use, and breastmilk feeding. Microbiome-diversity outcomes were modeled similarly. Bayesian posterior probabilities (PP) ≥75.0% were considered meaningful. RESULTS A majority of infants (78%) were born pre-term. Infants from non-smoking homes and/or with lower NICU-furniture surface nicotine had greater microbiome alpha-diversity compared to infants from smoking households (PP ≥ 75.0%). Associations (with PP ≥ 75.0%) of selected bacterial genera with urine cotinine, surface nicotine, and/or household cigarette use were evidenced for 7 (of 8) modeled genera. For example, lower Bifidobacterium relative abundance associated with greater furniture nicotine (IRR<0.01 [<0.01, 64.02]; PP = 87.1%), urine cotinine (IRR = 0.08 [<0.01,2.84]; PP = 86.9%), and household smoking (IRR<0.01 [<0.01, 7.38]; PP = 96.0%; FDR p < 0.05). CONCLUSIONS THS-related exposure was associated with microbiome differences in NICU-admitted infants. Additional research on effects of tobacco-related exposures on healthy infant gut-microbiome development is warranted.
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Affiliation(s)
- Thomas F Northrup
- Department of Family and Community Medicine, The University of Texas Health Science Center at Houston (UTHealth), McGovern Medical School, 6431 Fannin, JJL 324, Houston, TX, 77030, USA.
| | - Angela L Stotts
- Department of Family and Community Medicine, Department of Psychiatry and Behavioral Sciences, UTHealth, McGovern Medical School, 6431 Fannin, JJL 324, Houston, TX, 77030, USA.
| | - Robert Suchting
- Department of Psychiatry and Behavioral Sciences, UTHealth, McGovern Medical School, 1941 East Road, Houston, TX, 77030, USA.
| | - Georg E Matt
- Department of Psychology, San Diego State University, 5500 Campanile Drive, San Diego, CA, 92182-4611, USA.
| | - Penelope J E Quintana
- School of Public Health, San Diego State University, 5500 Campanile Drive, San Diego, CA, 92182-4162, USA.
| | - Amir M Khan
- Department of Pediatrics, UTHealth, McGovern Medical School, 6431 Fannin, MSB 3.236, Houston, TX, 77030, USA.
| | - Charles Green
- Department of Pediatrics, Center for Clinical Research and Evidence-Based Medicine, UTHealth, McGovern Medical School, 6431 Fannin, MSB 2.106, Houston, TX, 77030, USA.
| | - Michelle R Klawans
- Department of Family and Community Medicine, UTHealth, McGovern Medical School, 6431 Fannin, JJL 324, Houston, TX, 77030, USA.
| | - Mary Johnson
- Department of Pediatrics, UTHealth, McGovern Medical School, 6431 Fannin, MSB 3.244, Houston, TX, 77030, USA.
| | - Neal Benowitz
- Department of Medicine, University of California San Francisco, 1001 Potrero Ave, SFGH 30, San Francisco, CA, 94143, USA.
| | - Peyton Jacob
- Departments of Medicine and Psychiatry, University of California San Francisco, Division of Cardiology, Clinical Pharmacology Program, San Francisco General Hospital Medical Center, Box 1220, San Francisco, CA, 94143-1220, USA.
| | - Eunha Hoh
- School of Public Health, San Diego State University, 5500 Campanile Drive, San Diego, CA, 92182-4162, USA.
| | - Melbourne F Hovell
- Center for Behavioral Epidemiology and Community Health, School of Public Health, San Diego State University, 9245 Sky Park Court, Suite 102, Mail Box 102, San Diego, CA, 92123-4388, USA.
| | - Christopher J Stewart
- Translational and Clinical Research Institute, Newcastle University, Medical School, Framlington Place, Newcastle, NE2 4HH, UK.
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16
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Northrup TF, Stotts AL, Suchting R, Khan AM, Green C, Klawans MR, Quintana PJE, Hoh E, Hovell MF, Matt GE. Thirdhand Smoke Contamination and Infant Nicotine Exposure in a Neonatal Intensive Care Unit: An Observational Study. Nicotine Tob Res 2021; 23:373-382. [PMID: 32866238 DOI: 10.1093/ntr/ntaa167] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 08/26/2020] [Indexed: 12/14/2022]
Abstract
INTRODUCTION Thirdhand smoke (THS) is ultrafine particulate matter and residue resulting from tobacco combustion, with implications for health-related harm (eg, impaired wound healing), particularly among hospitalized infants. Project aims were to characterize nicotine (THS proxy) transported on neonatal intensive care unit (NICU) visitors and deposited on bedside furniture, as well as infant exposure. METHODS Cross-sectional data were collected from participants in a metropolitan NICU. Participants completed a survey and carbon monoxide breath sample, and 41.9% (n = 88) of participants (n = 210) were randomly selected for finger-nicotine wipes during a study phase when all bedside visitors were screened for nicotine use and finger-nicotine levels. During an overlapping study phase, 80 mother-infant dyads consented to bedside furniture-nicotine wipes and an infant urine sample (for cotinine analyses). RESULTS Most nonstaff visitors' fingers had nicotine above the limit of quantification (>LOQ; 61.9%). Almost all bedside furniture surfaces (93.8%) and infant cotinine measures (93.6%) had values >LOQ, regardless of household nicotine use. Participants who reported using (or lived with others who used) nicotine had greater furniture-nicotine contamination (Mdn = 0.6 [interquartile range, IQR = 0.2-1.6] µg/m2) and higher infant cotinine (Mdn = 0.09 [IQR = 0.04-0.25] ng/mL) compared to participants who reported no household-member nicotine use (Mdn = 0.5 [IQR = 0.2-0.7] µg/m2; Mdn = 0.04 [IQR = 0.03-0.07] ng/mL, respectively). Bayesian univariate regressions supported hypotheses that increased nicotine use/exposure correlated with greater nicotine contamination (on fingers/furniture) and infant THS exposure. CONCLUSIONS Potential furniture-contamination pathways and infant-exposure routes (eg, dermal) during NICU hospitalization were identified, despite hospital prohibitions on tobacco/nicotine use. This work highlights the surreptitious spread of nicotine and potential THS-related health risks to vulnerable infants during critical stages of development. IMPLICATIONS THS contamination is underexplored in medical settings. Infants who were cared for in the NICU are vulnerable to health risks from THS exposure. This study demonstrated that 62% of nonstaff NICU visitors transport nicotine on their fingers to the NICU. Over 90% of NICU (bedside) furniture was contaminated with nicotine, regardless of visitors' reported household-member nicotine use or nonuse. Over 90% of infants had detectable levels of urinary cotinine during NICU hospitalizations. Results justify further research to better protect infants from unintended THS exposure while hospitalized.
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Affiliation(s)
- Thomas F Northrup
- Department of Family and Community Medicine, University of Texas Health Science Center at Houston (UTHealth), McGovern Medical School, Houston, TX
| | - Angela L Stotts
- Department of Family and Community Medicine, University of Texas Health Science Center at Houston (UTHealth), McGovern Medical School, Houston, TX.,Department of Psychiatry and Behavioral Sciences, UTHealth, McGovern Medical School, Houston, TX
| | - Robert Suchting
- Department of Psychiatry and Behavioral Sciences, UTHealth, McGovern Medical School, Houston, TX
| | - Amir M Khan
- Department of Pediatrics, UTHealth, McGovern Medical School, Houston, TX
| | - Charles Green
- Department of Pediatrics, UTHealth, McGovern Medical School, Houston, TX.,Center for Clinical Research and Evidence-Based Medicine, UTHealth, McGovern Medical School, Houston, TX
| | - Michelle R Klawans
- Department of Family and Community Medicine, University of Texas Health Science Center at Houston (UTHealth), McGovern Medical School, Houston, TX
| | | | - Eunha Hoh
- School of Public Health, San Diego State University, San Diego, CA
| | - Melbourne F Hovell
- Center for Behavioral Epidemiology and Community Health, School of Public Health, San Diego State University, San Diego, CA
| | - Georg E Matt
- Department of Psychology, San Diego State University, San Diego, CA
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Quintana PJE, Lopez-Galvez N, Dodder NG, Hoh E, Matt GE, Zakarian JM, Vyas M, Chu L, Akins B, Padilla S, Anderson KA, Hovell MF. Nicotine, Cotinine, and Tobacco-Specific Nitrosamines Measured in Children's Silicone Wristbands in Relation to Secondhand Smoke and E-cigarette Vapor Exposure. Nicotine Tob Res 2021; 23:592-599. [PMID: 33009807 PMCID: PMC8248526 DOI: 10.1093/ntr/ntaa140] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 07/28/2020] [Indexed: 01/27/2023]
Abstract
INTRODUCTION Simple silicone wristbands (WB) hold promise for exposure assessment in children. We previously reported strong correlations between nicotine in WB worn by children and urinary cotinine (UC). Here, we investigated differences in WB chemical concentrations among children exposed to secondhand smoke from conventional cigarettes (CC) or secondhand vapor from electronic cigarettes (EC), and children living with nonusers of either product (NS). METHODS Children (n = 53) wore three WB and a passive nicotine air sampler for 7 days and one WB for 2 days, and gave a urine sample on day 7. Caregivers reported daily exposures during the 7-day period. We determined nicotine, cotinine, and tobacco-specific nitrosamines (TSNAs) concentrations in WB, nicotine in air samplers, and UC through isotope-dilution liquid chromatography with triple-quadrupole mass spectrometry. RESULTS Nicotine and cotinine levels in WB in children differentiated between groups of children recruited into NS, EC exposed, and CC exposed groups in a similar manner to UC. WB levels were significantly higher in the CC group (WB nicotine median 233.8 ng/g silicone, UC median 3.6 ng/mL, n = 15) than the EC group (WB nicotine median: 28.9 ng/g, UC 0.5 ng/mL, n = 19), and both CC and EC group levels were higher than the NS group (WB nicotine median: 3.7 ng/g, UC 0.1 ng/mL, n = 19). TSNAs, including the known carcinogen NNK, were detected in 39% of WB. CONCLUSIONS Silicone WB show promise for sensitive detection of exposure to tobacco-related contaminants from traditional and electronic cigarettes and have potential for tobacco control efforts. IMPLICATIONS Silicone WB worn by children can absorb nicotine, cotinine, and tobacco-specific nitrosamines, and amounts of these compounds are closely related to the child's urinary cotinine. Levels of tobacco-specific compounds in the silicone WB can distinguish patterns of children's exposure to secondhand smoke and e-cigarette vapor. Silicone WB are simple to use and acceptable to children and, therefore, may be useful for tobacco control activities such as parental awareness and behavior change, and effects of smoke-free policy implementation.
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Affiliation(s)
| | - Nicolas Lopez-Galvez
- San Diego State University Research Foundation, San Diego State
University, San Diego, CA
| | - Nathan G Dodder
- San Diego State University Research Foundation, San Diego State
University, San Diego, CA
| | - Eunha Hoh
- School of Public Health, San Diego State University, San Diego,
CA
| | - Georg E Matt
- Department of Psychology, San Diego State University, San Diego,
CA
| | - Joy M Zakarian
- San Diego State University Research Foundation, San Diego State
University, San Diego, CA
| | - Mansi Vyas
- School of Public Health, San Diego State University, San Diego,
CA
| | - Linda Chu
- School of Public Health, San Diego State University, San Diego,
CA
| | - Brittany Akins
- School of Public Health, San Diego State University, San Diego,
CA
| | - Samuel Padilla
- San Diego State University Research Foundation, San Diego State
University, San Diego, CA
| | - Kim A Anderson
- Environmental and Molecular Toxicology, Oregon State University College of
Agricultural Sciences, Corvallis, OR
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18
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Matt GE, Quintana PJE, Hoh E, Zakarian JM, Dodder NG, Record RA, Hovell MF, Mahabee-Gittens EM, Padilla S, Markman L, Watanabe K, Novotny TE. Remediating Thirdhand Smoke Pollution in Multiunit Housing: Temporary Reductions and the Challenges of Persistent Reservoirs. Nicotine Tob Res 2021; 23:364-372. [PMID: 32803265 PMCID: PMC7822102 DOI: 10.1093/ntr/ntaa151] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 08/11/2020] [Indexed: 12/16/2022]
Abstract
INTRODUCTION Toxic tobacco smoke residue, also known as thirdhand smoke (THS), can persist in indoor environments long after tobacco has been smoked. This study examined the effects of different cleaning methods on nicotine in dust and on surfaces. AIMS AND METHODS Participants had strict indoor home smoking bans and were randomly assigned to: dry/damp cleaning followed by wet cleaning 1 month later (N = 10), wet cleaning followed by dry/damp cleaning (N = 10) 1 month later, and dry/damp and wet cleaning applied the same day (N = 28). Nicotine on surfaces and in dust served as markers of THS and were measured before, immediately after, and 3 months after the cleaning, using liquid chromatography with triple quadrupole mass spectrometry (LC-MS/MS). RESULTS Over a 4-month period prior to cleaning, surface nicotine levels remained unchanged (GeoMean change: -11% to +8%; repeated measures r = .94; p < .001). Used separately, dry/damp and wet cleaning methods showed limited benefits. When applied in combination, however, we observed significantly reduced nicotine on surfaces and in dust. Compared with baseline, GeoMean surface nicotine was 43% lower immediately after (z = -3.73, p < .001) and 53% lower 3 months later (z = -3.96, p < .001). GeoMean dust nicotine loading declined by 60% immediately after (z = -3.55, p < .001) and then increased 3 months later to precleaning levels (z = -1.18, p = .237). CONCLUSIONS Cleaning interventions reduced but did not permanently remove nicotine in dust and on surfaces. Cleaning efforts for THS need to address persistent pollutant reservoirs and replenishment of reservoirs from new tobacco smoke intrusion. THS contamination in low-income homes may contribute to health disparities, particularly in children. IMPLICATIONS Administered sequentially or simultaneously, the tested cleaning protocols reduced nicotine on surfaces by ~50% immediately after and 3 months after the cleaning. Nicotine dust loading was reduced by ~60% immediately after cleaning, but it then rebounded to precleaning levels 3 months later. Cleaning protocols were unable to completely remove THS, and pollutants in dust were replenished from remaining pollutant reservoirs or new secondhand smoke intrusion. To achieve better outcomes, cleaning protocols should be systematically repeated to remove newly accumulated pollutants. New secondhand smoke intrusions need to be prevented, and remaining THS reservoirs should be identified, cleaned, or removed to prevent pollutants from these reservoirs to accumulate in dust and on surfaces.
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Affiliation(s)
- Georg E Matt
- Department of Psychology, San Diego State University, San Diego, CA
| | | | - Eunha Hoh
- School of Public Health, San Diego State University, San Diego, CA
| | - Joy M Zakarian
- San Diego State University Research Foundation, San Diego, CA
| | - Nathan G Dodder
- San Diego State University Research Foundation, San Diego, CA
| | - Rachael A Record
- School of Communication, San Diego State University, San Diego, CA
| | | | - E Melinda Mahabee-Gittens
- Cincinnati Children’s Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH
| | - Samuel Padilla
- San Diego State University Research Foundation, San Diego, CA
| | - Laura Markman
- School of Public Health, San Diego State University, San Diego, CA
| | - Kayo Watanabe
- School of Public Health, San Diego State University, San Diego, CA
| | - Thomas E Novotny
- School of Public Health, San Diego State University, San Diego, CA
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19
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Matt GE, Quintana PJE, Hoh E, Dodder NG, Mahabee-Gittens EM, Padilla S, Markman L, Watanabe K. Tobacco smoke is a likely source of lead and cadmium in settled house dust. J Trace Elem Med Biol 2021; 63:126656. [PMID: 33022485 PMCID: PMC7722169 DOI: 10.1016/j.jtemb.2020.126656] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 09/15/2020] [Accepted: 09/23/2020] [Indexed: 01/29/2023]
Abstract
INTRODUCTION Environmental exposure to lead (Pb) and cadmium (Cd) are risk factors for adverse health outcomes in children and adults. This study examined whether thirdhand smoke residue contributes to Pb and Cd in settled house dust. METHODS Participants were 60 multiunit housing residents in San Diego, California. All had indoor smoking bans during the study period, and 55 were nonsmokers. Wipe samples from different surfaces and vacuum floor dust samples were analyzed for nicotine, a marker of thirdhand smoke, and for Pb and Cd using liquid chromatography-triple quadrupole mass spectrometry and inductively coupled plasma-mass spectrometry, respectively. RESULTS Examined in each sample type separately, Pb and Cd loadings were significantly correlated (r = 0.73, vacuum floor dust; 0.52, floor wipes; 0.72, window sill/trough wipes; all p < 0.0025). Pb and Cd loadings from different sample types were not correlated (all p > 0.30). Nicotine loading in dust was significantly correlated with Pb and Cd loading in dust (r = 0.49 for Pb; r = 0.39 for Cd, all p < 0.0025). Pb and Cd loadings on floor or window surfaces, showed no association with nicotine loading in dust, on floors, or on furniture (all p < 0.30). CONCLUSIONS Tobacco smoke is a likely source of Pb and Cd that accumulates in settled house dust in multiunit housing, suggesting that Pb and Cd are constituents of thirdhand smoke that lingers long after smoking has ended.
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Affiliation(s)
- Georg E Matt
- San Diego State University Department of Psychology, San Diego, CA, USA.
| | | | - Eunha Hoh
- San Diego State University School of Public Health, San Diego, CA, USA
| | - Nathan G Dodder
- San Diego State University Research Foundation, San Diego, CA, USA
| | - E Melinda Mahabee-Gittens
- Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Samuel Padilla
- San Diego State University Research Foundation, San Diego, CA, USA
| | - Laura Markman
- San Diego State University School of Public Health, San Diego, CA, USA
| | - Kayo Watanabe
- San Diego State University School of Public Health, San Diego, CA, USA
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20
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Matt GE, Quintana PJE, Hoh E, Zakarian JM, Dodder NG, Record RA, Hovell MF, Mahabee-Gittens EM, Padilla S, Markman L, Watanabe K, Novotny TE. Persistent tobacco smoke residue in multiunit housing: Legacy of permissive indoor smoking policies and challenges in the implementation of smoking bans. Prev Med Rep 2020; 18:101088. [PMID: 32368436 PMCID: PMC7186560 DOI: 10.1016/j.pmedr.2020.101088] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 03/13/2020] [Accepted: 03/29/2020] [Indexed: 01/04/2023] Open
Abstract
Secondhand smoke (SHS) is a common indoor pollutant in multiunit housing (MUH). It is also the precursor of thirdhand smoke (THS), the toxic mixture of tobacco smoke residue that accumulates in indoor environments where tobacco has been used. This study examined the levels, distribution, and factors associated with THS pollution in low-income MUH. Interviews were conducted 2016-2018 in a cross-sectional study of N = 220 MUH homes in San Diego, California. Two surface wipe samples were collected per home and analyzed for nicotine, a THS marker, using liquid chromatography-triple quadrupole mass spectrometry. Nicotine was detected in all homes of nonsmokers with indoor smoking bans (Geo Mean = 1.67 µg/m2; 95% CI = [1.23;2.30]) and smokers regardless of an indoor ban (Geo Mean = 4.80 µg/m2; 95% CI = [1.89;12.19]). Approximately 10% of nonsmokers' homes with smoking bans showed nicotine levels higher than the average level in homes of smokers without smoking bans from previous studies (≥30 µg/m2). Housing for seniors, smoking bans on balconies, indoor tobacco use, difficult to reach surfaces, and self-reported African-American race/ethnicity were independently associated with higher THS levels. Individual cases demonstrated that high levels of surface nicotine may persist in nonsmoker homes for years after tobacco use even in the presence of indoor smoking bans. To achieve MUH free of tobacco smoke pollutants, attention must be given to identifying and remediating highly polluted units and to implementing smoking policies that prevent new accumulation of THS. As THS is a form of toxic tobacco product waste, responsibility for preventing and mitigating harmful impacts should include manufacturers, suppliers, and retailers.
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Affiliation(s)
- Georg E Matt
- San Diego State University Department of Psychology, San Diego, CA, USA
| | | | - Eunha Hoh
- San Diego State University School of Public Health, San Diego, CA, USA
| | - Joy M Zakarian
- San Diego State University Research Foundation, San Diego, CA, USA
| | - Nathan G Dodder
- San Diego State University Research Foundation, San Diego, CA, USA
| | - Rachael A Record
- San Diego State University School of Communication, San Diego, CA, USA
| | | | - E Melinda Mahabee-Gittens
- Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Samuel Padilla
- San Diego State University Research Foundation, San Diego, CA, USA
| | - Laura Markman
- San Diego State University School of Public Health, San Diego, CA, USA
| | - Kayo Watanabe
- San Diego State University School of Public Health, San Diego, CA, USA
| | - Thomas E Novotny
- San Diego State University School of Public Health, San Diego, CA, USA
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21
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Tran CD, Dodder NG, Quintana PJE, Watanabe K, Kim JH, Hovell MF, Chambers CD, Hoh E. Organic contaminants in human breast milk identified by non-targeted analysis. Chemosphere 2020; 238:124677. [PMID: 31524616 PMCID: PMC6832863 DOI: 10.1016/j.chemosphere.2019.124677] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 08/20/2019] [Accepted: 08/24/2019] [Indexed: 05/06/2023]
Abstract
Understanding the health implications of human exposure to mixtures of chemical contaminants is aided by analytical methods that can screen for a broad range of both expected and unexpected compounds. We performed a proof-of-concept analysis combining human breast milk, a biomonitoring matrix for determining contaminant exposure to mothers and infants, with a non-targeted method based on comprehensive two-dimensional gas chromatography coupled to time-of-flight mass spectrometry (GC×GC/TOF-MS). A total of 172 presumably anthropogenic halogenated compounds and non-halogenated cyclic and aromatic compounds were tentatively identified in breast milk from San Diego, California through mass spectral database searches. Forty of the compounds were prioritized for confirmation based on halogenation or 100% frequency of detection, and the identities of 30 were verified using authentic standards. Thirty-four (85%) of the prioritized contaminants are not typically monitored in breast milk surveys, and 31 (77%) are regulated in at least one market worldwide, indicating breast milk may be a useful biomonitoring matrix for non-targeted analysis and the assessment of human exposure to future emerging or undiscovered contaminants.
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Affiliation(s)
- Cuong D Tran
- School of Public Health, San Diego State University, 5500 Campanile Drive, San Diego, CA, 92182, USA; San Diego State University Research Foundation, 5250 Campanile Drive, San Diego, CA, 92182, USA
| | - Nathan G Dodder
- School of Public Health, San Diego State University, 5500 Campanile Drive, San Diego, CA, 92182, USA; San Diego State University Research Foundation, 5250 Campanile Drive, San Diego, CA, 92182, USA
| | - Penelope J E Quintana
- School of Public Health, San Diego State University, 5500 Campanile Drive, San Diego, CA, 92182, USA
| | - Kayo Watanabe
- School of Public Health, San Diego State University, 5500 Campanile Drive, San Diego, CA, 92182, USA; San Diego State University Research Foundation, 5250 Campanile Drive, San Diego, CA, 92182, USA
| | - Jae H Kim
- Department of Pediatrics, School of Medicine, University of California San Diego, La Jolla, CA, 92093, USA
| | - Melbourne F Hovell
- School of Public Health, San Diego State University, 5500 Campanile Drive, San Diego, CA, 92182, USA
| | - Christina D Chambers
- Department of Pediatrics, School of Medicine, University of California San Diego, La Jolla, CA, 92093, USA; Department of Family Medicine and Public Health, School of Medicine, University of California San Diego, La Jolla, CA, 92093, USA
| | - Eunha Hoh
- School of Public Health, San Diego State University, 5500 Campanile Drive, San Diego, CA, 92182, USA.
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22
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Matt GE, Mahabee-Gittens EM, Zakarian JM, Quintana PJE, Hoh E, Myers M. Nicotine in thirdhand smoke residue predicts relapse from smoking cessation: A pilot study. Addict Behav 2019; 98:106041. [PMID: 31330468 DOI: 10.1016/j.addbeh.2019.106041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 06/27/2019] [Accepted: 07/01/2019] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Thirdhand smoke (THS) residue lingers for months in homes of former smokers and may play a role in relapse after smoking cessation. This study examined the association between THS pollution as measured by the level of nicotine in house dust and continued abstinence from smoking. METHODS Participants were 65 cigarette smokers who reported they were enrolled in any type of smoking cessation program, had set a specific date to quit, and had biochemical verification of continuous abstinence at 1-week (W1), 1-month (M1), 3-months (M3), or 6-months (M6) after their quit date. House dust samples collected at baseline before quitting were analyzed for nicotine concentration (μg/g) and nicotine loading (μg/m2) using liquid chromatography-tandem mass spectrometry (LC-MS/MS). RESULTS Controlling for age, gender, overall and indoor smoking rates, and years lived in their home, dust nicotine concentration and loading predicted abstinence at W1, M1, M3, and M6. A 10-fold increase in dust nicotine loading and concentration were associated with approximately 50% lower odds of remaining abstinent. CONCLUSIONS Findings suggest nicotine in house dust may play a role in facilitating relapse after smoking cessation. Additional research is warranted to investigate the causal role of THS residue in homes of former smokers on cravings and continued abstinence.
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Affiliation(s)
- Georg E Matt
- San Diego State University, Department of Psychology, San Diego, CA, USA.
| | - E Melinda Mahabee-Gittens
- Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Joy M Zakarian
- San Diego State University Research Foundation, San Diego, CA, USA
| | | | - Eunha Hoh
- San Diego State University, School of Public Health, San Diego, CA, USA
| | - Mark Myers
- Veterans Administration San Diego Healthcare System and Department of Psychiatry, University of California, San Diego, CA, USA
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23
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Quintana PJE, Hoh E, Dodder NG, Matt GE, Zakarian JM, Anderson KA, Akins B, Chu L, Hovell MF. Nicotine levels in silicone wristband samplers worn by children exposed to secondhand smoke and electronic cigarette vapor are highly correlated with child's urinary cotinine. J Expo Sci Environ Epidemiol 2019; 29:733-741. [PMID: 30728487 DOI: 10.1038/s41370-019-0116-7] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 12/14/2018] [Accepted: 12/20/2018] [Indexed: 05/21/2023]
Abstract
Exposure assessment in children, especially young children, presents difficulties not found with adults. Simple silicone wristbands are passive samplers that have potential applicability in exposure studies of children. We investigated the performance of silicone wristbands as personal nicotine samplers in two wristbands worn by a child (n = 31) for 7 days and for 2 days (worn day 5 to day 7). We compared levels of nicotine in wristbands with urinary cotinine, a metabolite of nicotine, measured in the child's urine obtained on day 7. Children were recruited who were exposed to contaminants in tobacco smoke and/or vapor from electronic nicotine delivery systems (ENDS; commonly known as electronic cigarettes or EC) as well as children who lived in nonsmoking homes. Caregivers were interviewed to obtain reported measures of the child's exposure. Analysis was by liquid chromatography with triple quadrupole mass spectrometry and isotope dilution (LC-MS/MS). The nicotine detected in the wristbands worn for 2 days was highly correlated with urinary cotinine concentration (df = 29, r2 = 0.741, p < 0.001), as was nicotine in wristbands worn for 7 days (df = 28, r2 = 0.804, p < 0.001). The 2- and 7-day wristband nicotine amounts were also significantly correlated (df = 28, r2 = 0.852, p < 0.001). Silicone wristbands may be a useful tool for epidemiological and intervention studies of tobacco product exposure in children.
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Affiliation(s)
- Penelope J E Quintana
- School of Public Health, San Diego State University, 5500 Campanile Dr., San Diego, CA, 92182-4162, USA.
| | - Eunha Hoh
- School of Public Health, San Diego State University, 5500 Campanile Dr., San Diego, CA, 92182-4162, USA
| | - Nathan G Dodder
- San Diego State University Research Foundation, 5250 Campanile Way, San Diego, CA, 92182, USA
| | - Georg E Matt
- Department of Psychology, San Diego State University, 5500 Campanile Way, San Diego, CA, 92182-4611, USA
| | - Joy M Zakarian
- San Diego State University Research Foundation, 5250 Campanile Way, San Diego, CA, 92182, USA
| | - Kim A Anderson
- Department of Environmental and Molecular Toxicology, Oregon State University, 2750 SW Campus Way, Corvallis, OR, 97331, USA
| | - Brittany Akins
- School of Public Health, San Diego State University, 5500 Campanile Dr., San Diego, CA, 92182-4162, USA
| | - Linda Chu
- School of Public Health, San Diego State University, 5500 Campanile Dr., San Diego, CA, 92182-4162, USA
| | - Melbourne F Hovell
- School of Public Health, San Diego State University, 5500 Campanile Dr., San Diego, CA, 92182-4162, USA
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Mahabee-Gittens EM, Matt GE, Hoh E, Quintana PJE, Stone L, Geraci MA, Wullenweber CA, Koutsounadis GN, Ruwe AG, Meyers GT, Zakrajsek MA, Witry JK, Merianos AL. Contribution of thirdhand smoke to overall tobacco smoke exposure in pediatric patients: study protocol. BMC Public Health 2019; 19:491. [PMID: 31046729 PMCID: PMC6498613 DOI: 10.1186/s12889-019-6829-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 04/15/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Thirdhand smoke (THS) is the persistent residue resulting from secondhand smoke (SHS) that accumulates in dust, objects, and on surfaces in homes where tobacco has been used, and is reemitted into air. Very little is known about the extent to which THS contributes to children's overall tobacco smoke exposure (OTS) levels, defined as their combined THS and SHS exposure. Even less is known about the effect of OTS and THS on children's health. This project will examine how different home smoking behaviors contribute to THS and OTS and if levels of THS are associated with respiratory illnesses in nonsmoking children. METHODS This project leverages the experimental design from an ongoing pediatric emergency department-based tobacco cessation trial of caregivers who smoke and their children (NIHR01HD083354). At baseline and follow-up, we will collect urine and handwipe samples from children and samples of dust and air from the homes of smokers who smoke indoors, have smoking bans or who have quit smoking. These samples will be analyzed to examine to what extent THS pollution at home contributes to OTS exposure over and above SHS and to what extent THS continues to persist and contribute to OTS in homes of smokers who have quit or have smoking bans. Targeted and nontargeted chemical analyses of home dust samples will explore which types of THS pollutants are present in homes. Electronic medical record review will examine if THS and OTS levels are associated with child respiratory illness. Additionally, a repository of child and environmental samples will be created. DISCUSSION The results of this study will be crucial to help close gaps in our understanding of the types, quantity, and clinical effects of OTS, THS exposure, and THS pollutants in a unique sample of tobacco smoke-exposed ill children and their homes. The potential impact of these findings is substantial, as currently the level of risk in OTS attributable to THS is unknown. This research has the potential to change how we protect children from OTS, by recognizing that SHS and THS exposure needs to be addressed separately and jointly as sources of pollution and exposure. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT02531594 . Date of registration: August 24, 2015.
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Affiliation(s)
- E Melinda Mahabee-Gittens
- Divison of Emergency Medicine, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue MLC 2008, Cincinnati, Ohio, 45229-3039, USA. .,University of Cincinnati College of Medicine, CARE/Crawley Building, Suite E-870 3230 Eden Avenue, Cincinnati, Ohio, 45267, USA.
| | - Georg E Matt
- Department of Psychology, San Diego State University, San Diego, CA, USA
| | - Eunha Hoh
- San Diego State University Graduate School of Public Health, San Diego, CA, USA
| | | | - Lara Stone
- Divison of Emergency Medicine, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue MLC 2008, Cincinnati, Ohio, 45229-3039, USA
| | - Maegan A Geraci
- Divison of Emergency Medicine, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue MLC 2008, Cincinnati, Ohio, 45229-3039, USA
| | - Chase A Wullenweber
- Divison of Emergency Medicine, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue MLC 2008, Cincinnati, Ohio, 45229-3039, USA
| | - Gena N Koutsounadis
- Divison of Emergency Medicine, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue MLC 2008, Cincinnati, Ohio, 45229-3039, USA
| | - Abigail G Ruwe
- Divison of Emergency Medicine, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue MLC 2008, Cincinnati, Ohio, 45229-3039, USA
| | - Gabriel T Meyers
- Divison of Emergency Medicine, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue MLC 2008, Cincinnati, Ohio, 45229-3039, USA
| | - Mark A Zakrajsek
- Divison of Emergency Medicine, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue MLC 2008, Cincinnati, Ohio, 45229-3039, USA
| | - John K Witry
- Divison of Emergency Medicine, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue MLC 2008, Cincinnati, Ohio, 45229-3039, USA
| | - Ashley L Merianos
- School of Human Services, University of Cincinnati, PO Box 210002, Cincinnati, Ohio, 45221, USA
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Northrup TF, Stotts AL, Suchting R, Khan AM, Green C, Quintana PJE, Hoh E, Hovell MF, Matt GE. Medical staff contributions to thirdhand smoke contamination in a neonatal intensive care unit. Tob Induc Dis 2019; 17:37. [PMID: 31516480 PMCID: PMC6662774 DOI: 10.18332/tid/106116] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 04/01/2019] [Accepted: 04/02/2019] [Indexed: 12/18/2022] Open
Abstract
INTRODUCTION Non-smoking policies are strictly enforced in neonatal intensive care units (NICUs), which may still become contaminated by thirdhand smoke (THS), posing potential health risks to medically fragile infants. Study aims were to explore contamination routes by characterizing nicotine levels (THS proxy) found on the fingers of NICU medical staff and to assess finger-nicotine correlates. METHODS NICU medical staff were surveyed regarding smoking and electronic nicotine devices (ENDS) use/exposure, and household characteristics. Approximately 35% of staff were randomly selected for a finger-nicotine wipe. Three separate quantile regressions modeled percentiles associated with: presence of any finger nicotine, finger-nicotine levels above the median field blank level (i.e. 0.377 ng/wipe), and finger-nicotine levels two times the median blank. RESULTS The final sample size was 246 (n=260 approached; n=14 refusals). Over three-quarters (78.5%) reported some exposure to tobacco smoke or ENDS vapor/aerosols. After field-blank adjustments, the median nicotine level (ng/finger wipe) was 0.232 (IQR: 0.021–0.681) and 78.3% of medical staff had measurable finger-nicotine levels. Both being near smoking in friends’/family members’ homes and finger-surface area were related to elevated finger-nicotine levels (p<0.05) in the median blank model. CONCLUSIONS Almost four in five NICU staff had measurable finger nicotine, with finger surface area and frequency of reported exposure to tobacco smoke in friends’/family members’ homes emerging as important correlates. Future research will determine the impact of THS on NICU infants. Medical personnel working in a NICU should be cognizant of secondhand smoke and THS, particularly inside friends’/family members’ homes, to reduce potential NICU contamination and infant exposures.
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Affiliation(s)
- Thomas F Northrup
- Department of Family and Community Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, United States
| | - Angela L Stotts
- Department of Family and Community Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, United States.,Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, United States
| | - Robert Suchting
- Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, United States
| | - Amir M Khan
- Department of Pediatrics, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, United States
| | - Charles Green
- Department of Pediatrics, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, United States.,Center for Clinical Research and Evidence-Based Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, United States
| | - Penelope J E Quintana
- Division of Environmental Health, School of Public Health, San Diego State University, San Diego, United States
| | - Eunha Hoh
- Division of Environmental Health, School of Public Health, San Diego State University, San Diego, United States
| | - Melbourne F Hovell
- Center for Behavioral Epidemiology and Community Health, School of Public Health, San Diego State University, San Diego, United States
| | - Georg E Matt
- Department of Psychology, San Diego State University, San Diego, United States
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Hovell MF, Bellettiere J, Liles S, Nguyen B, Berardi V, Johnson C, Matt GE, Malone J, Boman-Davis MC, Quintana PJE, Obayashi S, Chatfield D, Robinson R, Blumberg EJ, Ongkeko WM, Klepeis NE, Hughes SC. Randomised controlled trial of real-time feedback and brief coaching to reduce indoor smoking. Tob Control 2019; 29:183-190. [PMID: 30770436 DOI: 10.1136/tobaccocontrol-2018-054717] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 12/31/2018] [Accepted: 01/02/2019] [Indexed: 11/04/2022]
Abstract
BACKGROUND Previous secondhand smoke (SHS) reduction interventions have provided only delayed feedback on reported smoking behaviour, such as coaching, or presenting results from child cotinine assays or air particle counters. DESIGN This SHS reduction trial assigned families at random to brief coaching and continuous real-time feedback (intervention) or measurement-only (control) groups. PARTICIPANTS We enrolled 298 families with a resident tobacco smoker and a child under age 14. INTERVENTION We installed air particle monitors in all homes. For the intervention homes, immediate light and sound feedback was contingent on elevated indoor particle levels, and up to four coaching sessions used prompts and praise contingent on smoking outdoors. Mean intervention duration was 64 days. MEASURES The primary outcome was 'particle events' (PEs) which were patterns of air particle concentrations indicative of the occurrence of particle-generating behaviours such as smoking cigarettes or burning candles. Other measures included indoor air nicotine concentrations and participant reports of particle-generating behaviour. RESULTS PEs were significantly correlated with air nicotine levels (r=0.60) and reported indoor cigarette smoking (r=0.51). Interrupted time-series analyses showed an immediate intervention effect, with reduced PEs the day following intervention initiation. The trajectory of daily PEs over the intervention period declined significantly faster in intervention homes than in control homes. Pretest to post-test, air nicotine levels, cigarette smoking and e-cigarette use decreased more in intervention homes than in control homes. CONCLUSIONS Results suggest that real-time particle feedback and coaching contingencies reduced PEs generated by cigarette smoking and other sources. TRIAL REGISTRATION NUMBER NCT01634334; Post-results.
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Affiliation(s)
- Melbourne F Hovell
- Center for Behavioral Epidemiology and Community Health, Graduate School of Public Health, San Diego State University, San Diego, California, USA
| | - John Bellettiere
- Center for Behavioral Epidemiology and Community Health, Graduate School of Public Health, San Diego State University, San Diego, California, USA
| | - Sandy Liles
- Center for Behavioral Epidemiology and Community Health, Graduate School of Public Health, San Diego State University, San Diego, California, USA
| | - Benjamin Nguyen
- Center for Behavioral Epidemiology and Community Health, Graduate School of Public Health, San Diego State University, San Diego, California, USA
| | - Vincent Berardi
- Center for Behavioral Epidemiology and Community Health, Graduate School of Public Health, San Diego State University, San Diego, California, USA.,Psychology, Chapman University, Orange, CA, USA
| | | | - Georg E Matt
- Center for Behavioral Epidemiology and Community Health, Graduate School of Public Health, San Diego State University, San Diego, California, USA.,Psychology, San Diego State University, San Diego, California, USA
| | - John Malone
- Department of Medicine, F Edward Hebert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
| | - Marie C Boman-Davis
- Center for Behavioral Epidemiology and Community Health, Graduate School of Public Health, San Diego State University, San Diego, California, USA.,Community Health, National University, California, USA
| | | | - Saori Obayashi
- Center for Behavioral Epidemiology and Community Health, Graduate School of Public Health, San Diego State University, San Diego, California, USA
| | - Dale Chatfield
- Center for Behavioral Epidemiology and Community Health, Graduate School of Public Health, San Diego State University, San Diego, California, USA
| | | | - Elaine J Blumberg
- Center for Behavioral Epidemiology and Community Health, Graduate School of Public Health, San Diego State University, San Diego, California, USA
| | - Weg M Ongkeko
- Surgery, University of California San Diego, La Jolla, California, USA
| | - Neil E Klepeis
- Center for Behavioral Epidemiology and Community Health, Graduate School of Public Health, San Diego State University, San Diego, California, USA
| | - Suzanne C Hughes
- Center for Behavioral Epidemiology and Community Health, Graduate School of Public Health, San Diego State University, San Diego, California, USA
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27
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Matt GE, Hoh E, Quintana PJE, Zakarian JM, Arceo J. Cotton pillows: A novel field method for assessment of thirdhand smoke pollution. Environ Res 2019; 168:206-210. [PMID: 30317105 PMCID: PMC6800039 DOI: 10.1016/j.envres.2018.09.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 09/18/2018] [Accepted: 09/21/2018] [Indexed: 06/03/2023]
Abstract
Thirdhand smoke (THS) is the residue left behind by secondhand smoke (SHS) that accumulates in indoor environments. THS chemicals can persist long after smoking has ceased and can re-emit semivolatile compounds back into the air. Measuring tobacco smoke pollution in real-world field setting can be technically complex, expensive, and intrusive. This study placed pillows in homes of former smokers and examined how much nicotine adsorbed to them over a three-week period. Organic cotton pillows were placed in the homes of 8 former smokers following the first week after verified smoking cessation until the fourth week. For comparison, pillows were also placed in 4 homes of nonsmokers. Nicotine concentrations were determined in the pillow case, fabric, and cotton filling, using isotope-dilution liquid chromatography tandem mass spectrometry. Cotton pillows placed in homes of former smokers absorbed on average 21.5 μg of nicotine. Nicotine concentration per gram of material significantly differed between pillow components (p < 0.001) and was highest for the pillow case (257 ng/g), followed by the pillow fabric (97 ng/g), and the pillow filling (17 ng/g). Nicotine levels in pillows placed in nonsmokers' homes did not differ from laboratory blanks (p > 0.40), or between pillow components (p > 0.40). In the absence of any smoking activity, cotton pillows absorbed significant amounts of nicotine emitted from THS reservoirs in the homes of former smokers. Given the much higher concentrations of SHS in the homes of active smokers, fabrics found throughout the home of a smoker are likely to store a substantial mass of tobacco smoke toxicants. Cotton pillows present a novel method that could be of interest to researchers requiring robust and unobtrusive methods to examine tobacco smoke pollution in real-world field settings.
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Affiliation(s)
- Georg E Matt
- San Diego State University Department of Psychology, San Diego, 92182-4611 CA, USA.
| | - Eunha Hoh
- San Diego State University School of Public Health, San Diego, 92182-4162 CA, USA
| | | | - Joy M Zakarian
- San Diego State University Research Foundation, San Diego, 92182 CA, USA
| | - Jayson Arceo
- San Diego State University School of Public Health, San Diego, 92182-4162 CA, USA
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Quintana PJE, Khalighi M, Castillo Quiñones JE, Patel Z, Guerrero Garcia J, Martinez Vergara P, Bryden M, Mantz A. Traffic pollutants measured inside vehicles waiting in line at a major US-Mexico Port of Entry. Sci Total Environ 2018; 622-623:236-243. [PMID: 29216464 DOI: 10.1016/j.scitotenv.2017.11.319] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 11/22/2017] [Accepted: 11/27/2017] [Indexed: 06/07/2023]
Abstract
At US-Mexico border Ports of Entry, vehicles idle for long times waiting to cross northbound into the US. Long wait times at the border have mainly been studied as an economic issue, however, exposures to emissions from idling vehicles can also present an exposure risk. Here we present the first data on in-vehicle exposures to driver and passengers crossing the US-Mexico border at the San Ysidro, California Port of Entry (SYPOE). Participants were recruited who regularly commuted across the border in either direction and told to drive a scripted route between two border universities, one in the US and one in Mexico. Instruments were placed in participants' cars prior to commute to monitor-1-minute average levels of the traffic pollutants ultrafine particles (UFP), black carbon (BC) and carbon monoxide (CO) in the breathing zone of drivers and passengers. Location was determined by a GPS monitor. Results reported here are for 68 northbound participant trips. The highest median levels of in-vehicle UFP were recorded during the wait to cross at the SYPOE (median 29,692particles/cm3) significantly higher than the portion of the commute in the US (median 20,508particles/cm3) though not that portion in Mexico (median 22, 191particles/cm3). In-vehicle BC levels at the border were significantly lower than in other parts of the commute. Our results indicate that waiting in line at the SYPOE contributes a median 62.5% (range 15.5%-86.0%) of a cross-border commuter's exposure to UFP and a median 44.5% (range (10.6-79.7%) of exposure to BC inside the vehicle while traveling in the northbound direction. Reducing border wait time can significantly reduce in-vehicle exposures to toxic air pollutants such as UFP and BC, and these preventable exposures can be considered an environmental justice issue.
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Affiliation(s)
- Penelope J E Quintana
- San Diego State University Graduate School of Public Health, 5500 Campanile Drive, San Diego, CA 92182-4162, USA.
| | - Mehdi Khalighi
- Millersville University, Department of Applied Engineering, Safety & Technology Occupational Safety & Environmental Health Program, 40 East Frederick Street, Millersville, PA 17551, USA
| | - Javier Emmanuel Castillo Quiñones
- Universidad Autónoma de Baja California Facultad de Ciencias Quimicas e Ingenieria, Calzada Universidad 14418 Parque Industrial Internacional, Tijuana B.C. 22427, Mexico
| | - Zalak Patel
- San Diego State University Graduate School of Public Health, 5500 Campanile Drive, San Diego, CA 92182-4162, USA
| | - Jesus Guerrero Garcia
- Universidad Autónoma de Baja California Facultad de Ciencias Quimicas e Ingenieria, Calzada Universidad 14418 Parque Industrial Internacional, Tijuana B.C. 22427, Mexico
| | - Paulina Martinez Vergara
- Universidad Autónoma de Baja California Facultad de Ciencias Quimicas e Ingenieria, Calzada Universidad 14418 Parque Industrial Internacional, Tijuana B.C. 22427, Mexico
| | - Megan Bryden
- San Diego State University Graduate School of Public Health, 5500 Campanile Drive, San Diego, CA 92182-4162, USA
| | - Antoinette Mantz
- San Diego State University Graduate School of Public Health, 5500 Campanile Drive, San Diego, CA 92182-4162, USA
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29
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Hughes SC, Bellettiere J, Nguyen B, Liles S, Klepeis NE, Quintana PJE, Berardi V, Obayashi S, Bradley S, Hofstetter CR, Hovell MF. Randomized Trial to Reduce Air Particle Levels in Homes of Smokers and Children. Am J Prev Med 2018; 54:359-367. [PMID: 29305069 PMCID: PMC5818281 DOI: 10.1016/j.amepre.2017.10.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 09/26/2017] [Accepted: 10/20/2017] [Indexed: 10/18/2022]
Abstract
INTRODUCTION Exposure to fine particulate matter in the home from sources such as smoking, cooking, and cleaning may put residents, especially children, at risk for detrimental health effects. A randomized clinical trial was conducted from 2011 to 2016 to determine whether real-time feedback in the home plus brief coaching of parents or guardians could reduce fine particle levels in homes with smokers and children. DESIGN A randomized trial with two groups-intervention and control. SETTING/PARTICIPANTS A total of 298 participants from predominantly low-income households with an adult smoker and a child aged <14 years. Participants were recruited during 2012-2015 from multiple sources in San Diego, mainly Women, Infants and Children Program sites. INTERVENTION The multicomponent intervention consisted of continuous lights and brief sound alerts based on fine particle levels in real time and four brief coaching sessions using particle level graphs and motivational interviewing techniques. Motivational interviewing coaching focused on particle reduction to protect children and other occupants from elevated particle levels, especially from tobacco-related sources. MAIN OUTCOME MEASURES In-home air particle levels were measured by laser particle counters continuously in both study groups. The two outcomes were daily mean particle counts and percentage time with high particle concentrations (>15,000 particles/0.01 ft3). Linear mixed models were used to analyze the differential change in the outcomes over time by group, during 2016-2017. RESULTS Intervention homes had significantly larger reductions than controls in daily geometric mean particle concentrations (18.8% reduction vs 6.5% reduction, p<0.001). Intervention homes' average percentage time with high particle concentrations decreased 45.1% compared with a 4.2% increase among controls (difference between groups p<0.001). CONCLUSIONS Real-time feedback for air particle levels and brief coaching can reduce fine particle levels in homes with smokers and young children. Results set the stage for refining feedback and possible reinforcing consequences for not generating smoke-related particles. TRIAL REGISTRATION This study is registered at www.clinicaltrials.gov NCT01634334.
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Affiliation(s)
- Suzanne C Hughes
- Center for Behavioral Epidemiology and Community Health (C-BEACH), Graduate School of Public Health, San Diego State University, San Diego, California.
| | - John Bellettiere
- Center for Behavioral Epidemiology and Community Health (C-BEACH), Graduate School of Public Health, San Diego State University, San Diego, California
| | - Benjamin Nguyen
- Center for Behavioral Epidemiology and Community Health (C-BEACH), Graduate School of Public Health, San Diego State University, San Diego, California
| | - Sandy Liles
- Center for Behavioral Epidemiology and Community Health (C-BEACH), Graduate School of Public Health, San Diego State University, San Diego, California
| | - Neil E Klepeis
- Center for Behavioral Epidemiology and Community Health (C-BEACH), Graduate School of Public Health, San Diego State University, San Diego, California
| | | | - Vincent Berardi
- Department of Psychology, Chapman University, Orange, California
| | - Saori Obayashi
- Center for Behavioral Epidemiology and Community Health (C-BEACH), Graduate School of Public Health, San Diego State University, San Diego, California
| | - Savannah Bradley
- College of Public Health and Human Sciences, Oregon State University, Corvallis, Oregon
| | - C Richard Hofstetter
- Center for Behavioral Epidemiology and Community Health (C-BEACH), Graduate School of Public Health, San Diego State University, San Diego, California
| | - Melbourne F Hovell
- Center for Behavioral Epidemiology and Community Health (C-BEACH), Graduate School of Public Health, San Diego State University, San Diego, California
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30
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Matt GE, Quintana PJE, Hoh E, Zakarian JM, Chowdhury Z, Hovell MF, Jacob P, Watanabe K, Theweny TS, Flores V, Nguyen A, Dhaliwal N, Hayward G. A Casino goes smoke free: a longitudinal study of secondhand and thirdhand smoke pollution and exposure. Tob Control 2018; 27:643-649. [DOI: 10.1136/tobaccocontrol-2017-054052] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 01/10/2018] [Accepted: 01/11/2018] [Indexed: 11/04/2022]
Abstract
BackgroundSecondhand smoke (SHS) in US casinos is common, but little is known about the residue of tobacco smoke pollutants left behind in dust and on surfaces, commonly referred to as thirdhand smoke (THS). We examined SHS and THS pollution and exposure before and during a casino smoking ban and after smoking resumed.MethodsA casino was visited nine times over a 15-month period to collect dust, surface and air samples in eight locations. Finger wipe and urine samples were collected from non-smoking confederates before and after a 4-hour casino visit. Samples were analysed for markers of SHS and THS pollution and exposure.ResultsExceptionally high levels of THS were found in dust and on surfaces. Although the smoking ban led to immediate improvements in air quality, surface nicotine levels were unchanged and remained very high for the first month of the smoking ban. Surface nicotine decreased by 90% after 1 month (P<0.01), but nicotine and tobacco-specific nitrosamines in dust decreased more slowly, declining by 90% only after 3 months (P<0.01). Exposure was significantly reduced after the ban, but the benefits of the ban were reversed after smoking resumed.ConclusionsLong-term smoking in a casino creates deep THS reservoirs that persist for months after a smoking ban. A complete smoking ban immediately improves air quality and significantly reduces exposure to SHS and THS. However, THS reservoirs contribute to continued low-level exposure to toxicants. To accelerate the effect of smoking bans, remediation efforts should address specific THS reservoirs, which may require intensive cleaning as well as replacement of carpets, furniture and building materials.
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Zakarian JM, Quintana PJE, Winston CH, Matt GE. Hotel smoking policies and their implementation: a survey of California hotel managers. Tob Induc Dis 2017; 15:40. [PMID: 29093657 PMCID: PMC5663030 DOI: 10.1186/s12971-017-0147-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Accepted: 10/23/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Most states in the U.S. permit hotels to allow smoking in some guest rooms, and only five (Indiana, Michigan, North Dakota, Vermont, and Wisconsin) require that all hotel and motel rooms be 100% smoke-free (State and local 100% smokefree hotel and motel guest room laws enacted as of July 3, 2017). Little is known, however, about how hotels' smoking policies have been implemented. This study examined hotels' smoking policies and their implementation. METHODS A telephone survey of a random sample of 383 California hotel managers was conducted. RESULTS Overall, 60.6% of hotels reported that smoking was prohibited in all guest rooms, and 4.7% reported that smoking was prohibited everywhere on their property. While California law permitted smoking in up to 65% of guest rooms, only 6.9% of rooms were reported as smoking-permitted. Over 90% of hotels had smoking rooms scattered among nonsmoking rooms, and about half of the smoking hotels reported that guests requesting either smoking or nonsmoking rooms were sometimes assigned to the other room type. When guests smoked in nonsmoking rooms fees could be substantial, but were often uncollected. CONCLUSIONS Hotel smoking policies and their implementation fall short of protecting nonsmoking guests and workers from exposure to secondhand and thirdhand smoke. Complete indoor smoking bans for all hotels are needed to close existing loopholes. Nonsmokers who wish to protect themselves from exposure to tobacco smoke should avoid hotels that permit smoking and instead stay in completely smoke-free hotels.
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Affiliation(s)
- Joy M. Zakarian
- San Diego State University Research Foundation, 9245 Sky Park Court, Suite 225, San Diego, California, 92123 USA
| | - Penelope J. E. Quintana
- Graduate School of Public Health, San Diego State University, San Diego, California, 92182 USA
| | - Carl H. Winston
- L. Robert Payne School of Hospitality & Tourism Management, San Diego State University, San Diego, California, 92182 USA
| | - Georg E. Matt
- Department of Psychology, San Diego State University, San Diego, California, 92182 USA
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Jacob P, Benowitz NL, Destaillats H, Gundel L, Hang B, Martins-Green M, Matt GE, Quintana PJE, Samet JM, Schick SF, Talbot P, Aquilina NJ, Hovell MF, Mao JH, Whitehead TP. Thirdhand Smoke: New Evidence, Challenges, and Future Directions. Chem Res Toxicol 2017; 30:270-294. [PMID: 28001376 PMCID: PMC5501723 DOI: 10.1021/acs.chemrestox.6b00343] [Citation(s) in RCA: 148] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Thirdhand smoke (THS) is the contamination that persists after secondhand tobacco smoke has been emitted into air. It refers to the tobacco-related gases and particles that become embedded in materials, such as the carpet, walls, furniture, blankets, and toys. THS is not strictly smoke, but chemicals that adhere to surfaces from which they can be released back into the air, undergo chemical transformations and/or accumulate. Currently, the hazards of THS are not as well documented as the hazards of secondhand smoke (SHS). In this Perspective, we describe the distribution and chemical changes that occur as SHS is transformed into THS, studies of environmental contamination by THS, human exposure studies, toxicology studies using animal models and in vitro systems, possible approaches for avoiding exposure, remediation of THS contamination, and priorities for further research.
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Affiliation(s)
- Peyton Jacob
- Division of Clinical Pharmacology and Experimental herapeutics, Departments of Psychiatry and Medicine, University of California, San Francisco, California 94143, United States
| | - Neal L. Benowitz
- Division of Clinical Pharmacology and Experimental Therapeutics, Medical Service, Departments of Medicine, and Bioengineering & Therapeutic Sciences, University of California, San Francisco, California 94143, United States
- Center for Tobacco Control Research and Education, University of California, San Francisco, California 94143, United States
| | - Hugo Destaillats
- Indoor Environment Group, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Lara Gundel
- Indoor Environment Group, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Bo Hang
- Biological Systems & Engineering, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Manuela Martins-Green
- Department of Cell Biology and Neuroscience, University of California Riverside 92521, United States
| | - Georg E. Matt
- Department of Psychology, San Diego State University, San Diego, California 92182, United States
| | - Penelope J. E. Quintana
- Graduate School of Public Health, San Diego State University, San Diego, California 92182, United States
| | - Jonathan M. Samet
- Department of Preventive Medicine, The Keck School of Medicine, University of Southern California, Los Angeles, California, 90089, United States
| | - Suzaynn F. Schick
- Division of Occupational and Environmental Medicine, School of Medicine, University of California, San Francisco, California 94143, United States
| | - Prue Talbot
- Department of Cell Biology and Neuroscience, University of California Riverside 92521, United States
| | - Noel J. Aquilina
- Department of Geosciences, University of Malta, Msida, MSD 2080, Malta
| | - Melbourne F. Hovell
- Graduate School of Public Health, San Diego State University, San Diego, California 92182, United States
| | - Jian-Hua Mao
- Biological Systems & Engineering, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Todd P. Whitehead
- The Center or Integrative Research on Childhood Leukemia and the Environment, School of Public Health, University of California, Berkeley, 94704, United States
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Dodd-Butera T, Quintana PJE, Ramirez-Zetina M, Batista-Castro AC, Sierra MM, Shaputnic C, Garcia-Castillo M, Ingmanson S, Hull S. Placental biomarkers of PAH exposure and glutathione-S-transferase biotransformation enzymes in an obstetric population from Tijuana, Baja California, Mexico. Environ Res 2017; 152:360-368. [PMID: 27567517 DOI: 10.1016/j.envres.2016.04.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2015] [Revised: 03/19/2016] [Accepted: 04/16/2016] [Indexed: 06/06/2023]
Abstract
Environmental exposures along the US-Mexico border have the potential to adversely affect the maternal-fetal environment. The purpose of this study was to assess placental biomarkers of environmental exposures in an obstetric population at the California-Baja California border in relation to detoxifying enzymes in the placenta and nutritional status. This study was conducted on consenting, full-term, obstetric patients (n=54), delivering in a hospital in Tijuana, Baja California (BC), Mexico. Placental polyaromatic hydrocarbon (PAH)-DNA adducts were measured in addition to placental glutathione-S-transferase (GST) activity and genotype, maternal serum folate, and maternal and umbilical cord blood lead and cadmium levels. A questionnaire was administered to the mothers to determine maternal occupation in a maquiladora, other exposures, and obstetric indicators. In univariate analysis, maternal serum folate levels were inversely correlated with total PAH-DNA adducts (rho=-0.375, p=0.007); adduct #1 (rho=-0.388, p=0.005); and adduct #3 (rho =-0.430, p=0.002). Maternal lead levels were significantly positively correlated with cord blood lead levels (rho=0.512, p<0.001). Cadmium levels were generally very low but significantly higher in mothers exposed to environmental tobacco smoke (ETS) (either at work or at home, n=10). In multivariate analysis, only maternal serum folate levels remained as a significant negative predictor of total DNA-PAH adducts levels in placenta. These findings affirm that placental tissue is a valuable and readily available source of human tissue for biomonitoring; and indicate that further study of the role of nutrition in detoxification and mitigation of environmental exposures in pregnant women is warranted.
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Affiliation(s)
- Teresa Dodd-Butera
- California State University San Bernardino, Department of Nursing, 5500 University Parkway, San Bernardino, CA 92407, USA; San Diego State University, Graduate School of Public Health, San Diego, CA, USA; Union Institute & University, Cincinnati, OH, USA.
| | | | | | - Ana C Batista-Castro
- Instituto Mexicano del Seguro Social Tijuana, BC, Mexico; Hospital General de Tijuana, Tijuana, Mexico.
| | - Maria M Sierra
- San Diego State University, Graduate School of Public Health, San Diego, CA, USA.
| | - Carolyn Shaputnic
- San Diego State University, Graduate School of Public Health, San Diego, CA, USA; University of California, San Diego, Western FASD Practice and Implementation Center, Department of Pediatrics, Division of Dysmorphology-Teratology, San Diego, CA, USA.
| | - Maura Garcia-Castillo
- Xochicalco Universidad Escuela de Medicina, BC, Mexico; Institute for Public Health, San Diego State University, San Diego, CA, USA.
| | - Sonja Ingmanson
- San Diego State University, Graduate School of Public Health, San Diego, CA, USA.
| | - Stacy Hull
- San Diego State University, Graduate School of Public Health, San Diego, CA, USA.
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Matt GE, Quintana PJE, Zakarian JM, Hoh E, Hovell MF, Mahabee-Gittens M, Watanabe K, Datuin K, Vue C, Chatfield DA. When smokers quit: exposure to nicotine and carcinogens persists from thirdhand smoke pollution. Tob Control 2016; 26:548-556. [PMID: 27655249 DOI: 10.1136/tobaccocontrol-2016-053119] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 08/03/2016] [Accepted: 08/24/2016] [Indexed: 01/12/2023]
Abstract
BACKGROUND Over a 6-month period, we examined tobacco smoke pollutants (also known as thirdhand smoke, THS) that remained in the homes of former smokers and the exposure to these pollutants. METHODS 90 smokers completed study measures at baseline (BL). Measures were repeated among verified quitters 1 week (W1), 1 month (M1), 3 months (M3) and 6 months (M6) following cessation. Measures were analysed for THS pollutants on household surfaces, fingers and in dust (ie, nicotine, tobacco-specific nitrosamines) and for urinary markers of exposure (ie, cotinine, 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol (NNAL)). RESULTS We observed significant short-term reduction of nicotine on surfaces (BL: 22.2 μg/m2, W1: 10.8 μg/m2) and on fingers of non-smoking residents (BL: 29.1 ng/wipe, W1: 9.1 ng/wipe) without further significant changes. Concentrations of nicotine and nicotine-derived nitrosamine ketone (NNK) in dust did not change and remained near BL levels after cessation. Dust nicotine and NNK loadings significantly increased immediately following cessation (nicotine BL: 5.0 μg/m2, W1: 9.3 μg/m2; NNK BL: 11.6 ng/m2, W1: 36.3 ng/m2) before returning to and remaining at near BL levels. Cotinine and NNAL showed significant initial declines (cotinine BL: 4.6 ng/mL, W1: 1.3 ng/mL; NNAL BL: 10.0 pg/mL, W1: 4.2 pg/mL) without further significant changes. CONCLUSIONS Homes of smokers remained polluted with THS for up to 6 months after cessation. Residents continued to be exposed to THS toxicants that accumulated in settled house dust and on surfaces before smoking cessation. Further research is needed to better understand the consequences of continued THS exposure after cessation and the efforts necessary to remove THS.
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Affiliation(s)
- Georg E Matt
- Department of Psychology, San Diego State University, San Diego, California, USA
| | - Penelope J E Quintana
- San Diego State University Graduate School of Public Health, San Diego, California, USA
| | - Joy M Zakarian
- San Diego State University Research Foundation, San Diego, California, USA
| | - Eunha Hoh
- San Diego State University Graduate School of Public Health, San Diego, California, USA
| | - Melbourne F Hovell
- San Diego State University Graduate School of Public Health, San Diego, California, USA
| | | | - Kayo Watanabe
- San Diego State University Graduate School of Public Health, San Diego, California, USA
| | - Kathy Datuin
- San Diego State University Graduate School of Public Health, San Diego, California, USA
| | - Cher Vue
- San Diego State University Graduate School of Public Health, San Diego, California, USA
| | - Dale A Chatfield
- Department of Chemistry, San Diego State University, San Diego, California, USA
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Arteaga VE, Mitchell DC, Matt GE, Quintana PJE, Schaeffer J, Reynolds SJ, Schenker MB, Mitloehner FM. Occupational Exposure to Endotoxin in PM<sub>2.5</sub> and Pre- and Post-Shift Lung Function in California Dairy Workers. ACTA ACUST UNITED AC 2015. [DOI: 10.4236/jep.2015.65050] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Ramos A, Quintana PJE, Ji M. Hair mercury and fish consumption in residents of O'ahu, Hawai'i. Hawaii J Med Public Health 2014; 73:19-25. [PMID: 24470983 PMCID: PMC3901168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Recent studies have established that men are susceptible to cardiotoxicity from methylmercury exposure, which also poses risks to the pregnant woman. Hair samples were obtained and questionnaires for methylmercury exposure assessment were administered to 110 adults (57 men, 53 women) throughout O'ahu, Hawai'i during December 2010 to January 2011. Hair samples were analyzed for total mercury with a direct mercury analyzer. Men ≥ 46 years had a median of 2.0 µg/g, which was above the reference dose of 1 µg/g, as compared to younger men with a median 1.0 µg/g (P < 0.05). Hair concentrations from older women had a median of 1.2 µg/g of mercury compared to 0.6 µg/g for younger women. Additionally, 38% of women of childbearing age had a Hazard Index > 1.0. This indicates that both men and women were at risk for excessive methylmercury exposure. In the final regression model, male gender, age > 45 years, length of residency > 10 years in Hawai'i, and fish consumption frequency > 1 meal per week were significant factors in increased hair mercury levels. Following safe fish consumption practices allows residents to reap health benefits of fish consumption without excessive toxicant exposure.
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Affiliation(s)
- Alethea Ramos
- San Diego State University Graduate School of Public Health, San Diego, CA
| | | | - Ming Ji
- San Diego State University Graduate School of Public Health, San Diego, CA
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Matt GE, Quintana PJE, Fortmann AL, Zakarian JM, Galaviz VE, Chatfield DA, Hoh E, Hovell MF, Winston C. Thirdhand smoke and exposure in California hotels: non-smoking rooms fail to protect non-smoking hotel guests from tobacco smoke exposure. Tob Control 2013; 23:264-72. [PMID: 23669058 DOI: 10.1136/tobaccocontrol-2012-050824] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION This study examined tobacco smoke pollution (also known as thirdhand smoke, THS) in hotels with and without complete smoking bans and investigated whether non-smoking guests staying overnight in these hotels were exposed to tobacco smoke pollutants. METHODS A stratified random sample of hotels with (n=10) and without (n=30) complete smoking bans was examined. Surfaces and air were analysed for tobacco smoke pollutants (ie, nicotine and 3-ethynylpyridine, 3EP). Non-smoking confederates who stayed overnight in guestrooms provided urine and finger wipe samples to determine exposure to nicotine and the tobacco-specific carcinogen 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone as measured by their metabolites cotinine and 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol (NNAL), respectively. FINDINGS Compared with hotels with complete smoking bans, surface nicotine and air 3EP were elevated in non-smoking and smoking rooms of hotels that allowed smoking. Air nicotine levels in smoking rooms were significantly higher than those in non-smoking rooms of hotels with and without complete smoking bans. Hallway surfaces outside of smoking rooms also showed higher levels of nicotine than those outside of non-smoking rooms. Non-smoking confederates staying in hotels without complete smoking bans showed higher levels of finger nicotine and urine cotinine than those staying in hotels with complete smoking bans. Confederates showed significant elevations in urinary NNAL after staying in the 10 most polluted rooms. CONCLUSIONS Partial smoking bans in hotels do not protect non-smoking guests from exposure to tobacco smoke and tobacco-specific carcinogens. Non-smokers are advised to stay in hotels with complete smoking bans. Existing policies exempting hotels from complete smoking bans are ineffective.
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Affiliation(s)
- Georg E Matt
- Department of Psychology, San Diego State University, , San Diego, California, USA
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Quintana PJE, Matt GE, Chatfield D, Zakarian JM, Fortmann AL, Hoh E. Wipe sampling for nicotine as a marker of thirdhand tobacco smoke contamination on surfaces in homes, cars, and hotels. Nicotine Tob Res 2013; 15:1555-63. [PMID: 23460657 DOI: 10.1093/ntr/ntt014] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
INTRODUCTION Secondhand smoke contains a mixture of pollutants that can persist in air, dust, and on surfaces for months or longer. This persistent residue is known as thirdhand smoke (THS). Here, we detail a simple method of wipe sampling for nicotine as a marker of accumulated THS on surfaces. METHODS We analyzed findings from 5 real-world studies to investigate the performance of wipe sampling for nicotine on surfaces in homes, cars, and hotels in relation to smoking behavior and smoking restrictions. RESULTS The intraclass correlation coefficient for side-by-side samples was 0.91 (95% CI: 0.87-0.94). Wipe sampling for nicotine reliably distinguished between private homes, private cars, rental cars, and hotels with and without smoking bans and was significantly positively correlated with other measures of tobacco smoke contamination such as air and dust nicotine. The sensitivity and specificity of possible threshold values (0.1, 1, and 10 μg/m(2)) were evaluated for distinguishing between nonsmoking and smoking environments. Sensitivity was highest at a threshold of 0.1 μg/m(2), with 74%-100% of smoker environments showing nicotine levels above threshold. Specificity was highest at a threshold of 10 μg/m(2), with 81%-100% of nonsmoker environments showing nicotine levels below threshold. The optimal threshold will depend on the desired balance of sensitivity and specificity and on the types of smoking and nonsmoking environments. CONCLUSIONS Surface wipe sampling for nicotine is a reliable, valid, and relatively simple collection method to quantify THS contamination on surfaces across a wide range of field settings and to distinguish between nonsmoking and smoking environments.
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Affiliation(s)
- Penelope J E Quintana
- Graduate School of Public Health, San Diego State University, 5500 Campanile Drive, San Diego, CA 4162, USA.
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Hoh E, Hunt RN, Quintana PJE, Zakarian JM, Chatfield DA, Wittry BC, Rodriguez E, Matt GE. Environmental tobacco smoke as a source of polycyclic aromatic hydrocarbons in settled household dust. Environ Sci Technol 2012; 46:4174-83. [PMID: 22397504 DOI: 10.1021/es300267g] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Environmental tobacco smoke is a major contributor to indoor air pollution. Dust and surfaces may remain contaminated long after active smoking has ceased (called 'thirdhand' smoke). Polycyclic aromatic hydrocarbons (PAHs) are known carcinogenic components of tobacco smoke found in settled house dust (SHD). We investigated whether tobacco smoke is a source of PAHs in SHD. House dust was collected from 132 homes in urban areas of Southern California. Total PAHs were significantly higher in smoker homes than nonsmoker homes (by concentration: 990 ng/g vs 756 ng/g, p = 0.025; by loading: 1650 ng/m(2) vs 796 ng/m(2), p = 0.012). We also found significant linear correlations between nicotine and total PAH levels in SHD (concentration, R(2) = 0.105; loading, R(2) = 0.385). Dust collected per square meter (g/m(2)) was significantly greater in smoker homes and might dilute PAH concentration in SHD inconsistently. Therefore, dust PAH loading (ng PAH/m(2)) is a better indicator of PAH content in SHD. House dust PAH loadings in the bedroom and living room in the same home were significantly correlated (R(2) = 0.468, p < 0.001) suggesting PAHs are distributed by tobacco smoke throughout a home. In conclusion, tobacco smoke is a source of PAHs in SHD, and tobacco smoke generated PAHs are a component of thirdhand smoke.
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Affiliation(s)
- Eunha Hoh
- Graduate School of Public Health, San Diego State University, San Diego, CA, USA.
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Matt GE, Fortmann AL, Quintana PJE, Zakarian JM, Romero RA, Chatfield DA, Hoh E, Hovell MF. Towards smoke-free rental cars: an evaluation of voluntary smoking restrictions in California. Tob Control 2012; 22:201-7. [PMID: 22337558 DOI: 10.1136/tobaccocontrol-2011-050231] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
INTRODUCTION Some car rental companies in California and other states in the USA have established non-smoking policies for their vehicles. This study examined the effectiveness of these policies in maintaining smoke-free rental cars. METHODS A stratified random sample of 250 cars (non-smoker, smoker and unknown designation) was examined in San Diego County, California, USA. Dust, surfaces and the air of each vehicle cabin were sampled and analysed for residual tobacco smoke pollutants (also known as thirdhand smoke (THS)), and each car was inspected for visual and olfactory signs of tobacco use. Customer service representatives were informally interviewed about smoking policies. FINDINGS A majority of putative non-smoker cars had nicotine in dust, on surfaces, in air and other signs of tobacco use. Independent of a car's smoking status, older and higher mileage cars had higher levels of THS pollution in dust and on surfaces (p<0.05), indicating that pollutants accumulated over time. Compared with smoker cars, non-smoker cars had lower levels of nicotine on surfaces (p<0.01) and in dust (p<0.05) and lower levels of nicotine (p<0.05) and 3-ethynylpyridine (p<0.05) in the air. Non-smoking signage in cars was associated with lower levels of THS pollutants in dust and air (p<0.05). CONCLUSIONS Existing policies and practices were successful in lowering THS pollution levels in non-smoker cars compared with smoker cars. However, policies failed in providing smoke-free rental cars; THS levels were not as low as those found in private cars of non-smokers with in-car smoking bans. Major obstacles include inconsistent communication with customers and the lack of routine monitoring and enforcement strategies. Strengthening policies and their implementation would allow car rental companies to reduce costs, better serve their customers and make a constructive contribution to tobacco control efforts.
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Affiliation(s)
- Georg E Matt
- Department of Psychology, San Diego State University, San Diego, CA 92182-4611, USA.
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Matt GE, Quintana PJE, Destaillats H, Gundel LA, Sleiman M, Singer BC, Jacob P, Benowitz N, Winickoff JP, Rehan V, Talbot P, Schick S, Samet J, Wang Y, Hang B, Martins-Green M, Pankow JF, Hovell MF. Thirdhand tobacco smoke: emerging evidence and arguments for a multidisciplinary research agenda. Environ Health Perspect 2011; 119:1218-26. [PMID: 21628107 PMCID: PMC3230406 DOI: 10.1289/ehp.1103500] [Citation(s) in RCA: 292] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2011] [Accepted: 05/31/2011] [Indexed: 05/20/2023]
Abstract
BACKGROUND There is broad consensus regarding the health impact of tobacco use and secondhand smoke exposure, yet considerable ambiguity exists about the nature and consequences of thirdhand smoke (THS). OBJECTIVES We introduce definitions of THS and THS exposure and review recent findings about constituents, indoor sorption-desorption dynamics, and transformations of THS; distribution and persistence of THS in residential settings; implications for pathways of exposure; potential clinical significance and health effects; and behavioral and policy issues that affect and are affected by THS. DISCUSSION Physical and chemical transformations of tobacco smoke pollutants take place over time scales ranging from seconds to months and include the creation of secondary pollutants that in some cases are more toxic (e.g., tobacco-specific nitrosamines). THS persists in real-world residential settings in the air, dust, and surfaces and is associated with elevated levels of nicotine on hands and cotinine in urine of nonsmokers residing in homes previously occupied by smokers. Much still needs to be learned about the chemistry, exposure, toxicology, health risks, and policy implications of THS. CONCLUSION The existing evidence on THS provides strong support for pursuing a programmatic research agenda to close gaps in our current understanding of the chemistry, exposure, toxicology, and health effects of THS, as well as its behavioral, economic, and sociocultural considerations and consequences. Such a research agenda is necessary to illuminate the role of THS in existing and future tobacco control efforts to decrease smoking initiation and smoking levels, to increase cessation attempts and sustained cessation, and to reduce the cumulative effects of tobacco use on morbidity and mortality.
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Affiliation(s)
- Georg E Matt
- Department of Psychology, San Diego State University, San Diego, CA 92182, USA.
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Matt GE, Quintana PJE, Zakarian JM, Fortmann AL, Chatfield DA, Hoh E, Uribe AM, Hovell MF. When smokers move out and non-smokers move in: residential thirdhand smoke pollution and exposure. Tob Control 2011; 20:e1. [PMID: 21037269 PMCID: PMC3666918 DOI: 10.1136/tc.2010.037382] [Citation(s) in RCA: 134] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND This study examined whether thirdhand smoke (THS) persists in smokers' homes after they move out and non-smokers move in, and whether new non-smoking residents are exposed to THS in these homes. METHODS The homes of 100 smokers and 50 non-smokers were visited before the residents moved out. Dust, surfaces, air and participants' fingers were measured for nicotine and children's urine samples were analysed for cotinine. The new residents who moved into these homes were recruited if they were non-smokers. Dust, surfaces, air and new residents' fingers were examined for nicotine in 25 former smoker and 16 former non-smoker homes. A urine sample was collected from the youngest resident. RESULTS Smoker homes' dust, surface and air nicotine levels decreased after the change of occupancy (p<0.001); however dust and surfaces showed higher contamination levels in former smoker homes than former non-smoker homes (p<0.05). Non-smoking participants' finger nicotine was higher in former smoker homes compared to former non-smoker homes (p<0.05). Finger nicotine levels among non-smokers living in former smoker homes were significantly correlated with dust and surface nicotine and urine cotinine. CONCLUSIONS These findings indicate that THS accumulates in smokers' homes and persists when smokers move out even after homes remain vacant for 2 months and are cleaned and prepared for new residents. When non-smokers move into homes formerly occupied by smokers, they encounter indoor environments with THS polluted surfaces and dust. Results suggest that non-smokers living in former smoker homes are exposed to THS in dust and on surfaces.
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Affiliation(s)
- Georg E Matt
- Department of Psychology, San Diego State University, San Diego, California 92182-4611, USA.
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Fortmann AL, Romero RA, Sklar M, Pham V, Zakarian J, Quintana PJE, Chatfield D, Matt GE. Residual tobacco smoke in used cars: futile efforts and persistent pollutants. Nicotine Tob Res 2010; 12:1029-36. [PMID: 20805293 DOI: 10.1093/ntr/ntq144] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
INTRODUCTION Smoking cigarettes in the enclosed environment of a car leads to the contamination of a car's microenvironment with residual tobacco smoke pollution (TSP). METHODS Surface wipe, air, and dust samples were collected in used cars sold by nonsmokers (n = 40) and smokers (n = 87) and analyzed for nicotine. Primary drivers were interviewed about smoking behavior and restrictions, and car interiors were inspected to investigate (a) differences in car dustiness, signs of past smoking, ventilation use, mileage, and passenger cabin volume among nonsmokers and smokers with and without in-car smoking bans and (b) factors that contribute to the contamination of cars with residual TSP, such as ventilation use, cleaning behaviors, signs of past smoking, and holding the cigarette near/outside the car window while smoking. RESULTS Smokers reported using air conditioning less (p < .05) and driving with windows down more often than nonsmokers (p = .05); their cars were also dustier (p < .01) and exhibited more ash and burn marks than nonsmokers' cars (p < .001). Number of cigarettes smoked by the primary driver was the strongest predictor of residual TSP indicators (R(2) = .10 - .16, p = .001). This relationship was neither mediated by ash or burn marks nor moderated by efforts to remove residual TSP from the vehicle (i.e., cleaning, ventilation) or attempts to prevent tobacco smoke pollutants from adsorbing while smoking (e.g., holding the cigarette near/outside window). DISCUSSION Findings suggest that smokers can prevent their cars from becoming contaminated with residual TSP by reducing or ceasing smoking; however, commonly used cleaning and ventilation methods did not successfully decrease contamination levels. Disclosure requirements and smoke-free certifications could help protect buyers of used cars and empower them to request nonsmoking environments or a discount on cars that have been smoked in previously.
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Affiliation(s)
- Addie L Fortmann
- San Diego State University/University of California, San Diego Joint Doctoral Program in Clinical Psychology, San Diego, CA 92123, USA
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Matt GE, Quintana PJE, Hovell MF, Chatfield D, Ma DS, Romero R, Uribe A. Residual tobacco smoke pollution in used cars for sale: air, dust, and surfaces. Nicotine Tob Res 2009; 10:1467-75. [PMID: 19023838 DOI: 10.1080/14622200802279898] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Regular tobacco use in the enclosed environment of a car raises concerns about longer-term contamination of a car's microenvironment with residual secondhand smoke pollutants. This study (a) developed and compared methods to measure residual contamination of cars with secondhand smoke, (b) examined whether cars of smokers and nonsmokers were contaminated by secondhand smoke, and (c) how smoking behavior and restrictions affected contamination levels. Surface wipe, dust, and air samples were collected in used cars sold by nonsmokers (n = 20) and smokers (n = 87) and analyzed for nicotine. Sellers were interviewed about smoking behavior and restrictions, and car interiors were inspected for signs of tobacco use. Cars of smokers who smoked in their vehicles showed significantly elevated levels of nicotine (p < .001) in dust, on surfaces, and in the air compared with nonsmoker cars with smoking ban. When smokers imposed car smoking bans, air nicotine levels were significantly lower (p < .01), but dust and surface contamination levels remained at similar levels. Smoking more cigarettes in the car and overall higher smoking rate of the seller were significantly associated with higher secondhand smoke contamination of the car (p < .001). Use of a cutpoint for nicotine levels from surface wipe samples correctly identified 82% of smoker cars without smoking bans, 75% of smoker cars with bans, and 100% of nonsmoker cars. Surface nicotine levels provide a relatively inexpensive and accurate method to identify cars and other indoor environments contaminated with residual secondhand smoke. Disclosure requirements and smoke-free certifications could help protect nonsmoking buyers of used cars.
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Affiliation(s)
- Georg E Matt
- Department of Psychology, San Diego State University, San Diego, CA 92182-4611, USA.
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Matt GE, Quintana PJE, Liles S, Hovell MF, Zakarian JM, Jacob P, Benowitz NL. Evaluation of urinary trans-3'-hydroxycotinine as a biomarker of children's environmental tobacco smoke exposure. Biomarkers 2007; 11:507-23. [PMID: 17056471 DOI: 10.1080/13547500600902458] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The utility of urinary trans-3'-hydroxy cotinine (3HC) as a biomarker of environmental tobacco smoke (ETS) exposure was investigated in comparison with urinary cotinine (COT), the sum (3HC + COT), and ratio of the two nicotine metabolites (3HC/COT). Participants were 150 ETS exposed children (aged 1-44 months) and their parents. Child urine samples were collected during 3weekly baseline assessments and at interviews administered 3, 6, 12, and 18 months after baseline. Findings indicate that 3HC and COT can be measured reliably (rho = 0.96, 0.88) and show equivalent levels of repeated measures stability (rho = 0.71, 0.75). COT, 3HC, and 3HC + COT showed equally strong associations with air nicotine levels, reported ETS contamination, and reported ETS exposure (r=0.60-0.70). The intraclass correlations of 3HC/COT were lower than those for COT or 3HC. Older children had a higher 3HC/COT ratio than younger children (3.5 versus 2.2), and non-Hispanic White children had a higher ratio than African-American children (3.2 versus 1.9). These findings suggest that COT, 3HC, and 3HC + COT are approximately equivalent and equally strong biomarkers of ETS exposure in children. Moreover, 3HC/COT may provide a useful indicator to investigate age- and race-related differences in the metabolism of COT and 3HC.
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Affiliation(s)
- G E Matt
- Department of Psychology, Graduate School of Public Health, San Diego, CA, USA.
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Matt GE, Hovell MF, Quintana PJE, Zakarian J, Liles S, Meltzer SB, Benowitz NL. The variability of urinary cotinine levels in young children: implications for measuring ETS exposure. Nicotine Tob Res 2007; 9:83-92. [PMID: 17365739 DOI: 10.1080/14622200601078335] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
This study examined the within-subject variability of urinary cotinine levels in young children (aged = 0.6-7.2 years) of smoking parents to determine the number of urine samples needed to provide accurate estimates of exposure to environmental tobacco smoke (ETS) for different time intervals. Secondary analyses were conducted of five independent studies (N = 376), in which multiple urinary cotinine measures had been collected over time periods up to 13 months. Over measurement periods of 4-15 days, the within-subject cotinine levels varied 3-5 times more than would be expected based on measurement error alone. Over 7-13 months, the within-subject variability was 10-20 times higher than would be expected based on the measurement error. Findings indicated that cotinine measures from single urine samples provided highly accurate estimates of only recent exposure (i.e., 2-3 days; rho = 0.99). To achieve similarly precise estimates of the mean cotinine level of an individual child over 4-15 days, up to nine urine samples may be necessary. Up to 12 urine samples may be required to achieve similarly precise estimates of ETS exposure over a 4- to 13-month period. Epidemiologic and clinical research on ETS exposure in children can benefit from multiple urine samples (a) to accurately measure average exposure at the level of the individual child, (b) to describe temporal patterns, (c) to detect incidences of peak exposure that would remain underrecognized if monitoring is limited to a single time point, and (d) to establish stable baseline levels and endpoints based on urine samples collected over clinically relevant time periods.
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Affiliation(s)
- Georg E Matt
- Department of Psychology, San Diego State University, San Diego 92182-4611, CA, USA.
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Lord JL, de Peyster A, Quintana PJE, Metzger RP. Cytotoxicity of xanthopterin and isoxanthopterin in MCF-7 cells. Cancer Lett 2005; 222:119-24. [PMID: 15837549 DOI: 10.1016/j.canlet.2004.09.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2004] [Accepted: 09/02/2004] [Indexed: 11/26/2022]
Abstract
Human mammary carcinoma MCF-7 cell line responsiveness to the pteridines xanthopterin and isoxanthopterin was studied using the MTS assay for measurement of cell viability. The pteridines were tested at concentrations ranging from 7.8 to 500 microM singly and in 11 isoxanthopterin:xanthopterin ratios. IC50s of xanthopterin and isoxanthopterin were 109+/-13 microM (mean+/-SEM of y estimate) and 103+/-9 microM, respectively. The IC50 values for pteridine mixtures were similar although 3:1 and 4:1 isoxanthopterin:xanthopterin ratios seemed slightly more cytotoxic than other mixtures. However, ANOVA revealed no statistical differences in the cytotoxicity of mixtures.
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Affiliation(s)
- Jean L Lord
- Graduate School of Public Health, San Diego State University, San Diego, CA 92182-4162, USA
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Wu CF, Delfino RJ, Floro JN, Samimi BS, Quintana PJE, Kleinman MT, Liu LJS. Evaluation and quality control of personal nephelometers in indoor, outdoor and personal environments. J Expo Anal Environ Epidemiol 2005; 15:99-110. [PMID: 15039794 DOI: 10.1038/sj.jea.7500351] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/15/2023]
Abstract
Personal nephelometers provide useful real-time measurements of airborne particulate matter (PM). Recent studies have applied this tool to assess personal exposures and related health effects. However, a thorough quality control (QC) procedure for data collected from such a device in a large-scale exposure assessment study is lacking. We have evaluated the performance of a personal nephelometer (personal DataRAM or pDR) in the field. We present here a series of post hoc QC procedures for improving the quality of the pDR data. The correlations and the ratios between the pDRs and the collocated gravimetric measurements were used as indices of the pDR data quality. The pDR was operated in four modes: passive (no pump), active (with personal sampling pumps), active with a heated inlet, and a humidistat. The pDRs were worn by 21 asthmatic children, placed at their residences indoors and outdoors, as well as at a central site. All fixed-site pDRs were collocated with Harvard Impactors for PM2.5 (HI2.5). By examining the differences between the time-weighted average concentrations calculated from the real-time pDRs' readings and recorded internally by the pDRs, we identified 9.1% of the pDRs' measurements suffered from negative drifts. By comparing the pDRs' daily base level with the HI2.5 measurements, we identified 5.7% of the pDRs' measurements suffered from positive drifts. High relative humidity (RH) affected outdoor pDR measurements, even when a heater was used. Results from a series of chamber experiments suggest that the heated air stream cooled significantly after leaving the heater and entering the pDR light-scattering chamber. An RH correction equation was applied to the pDR measurements to remove the RH effect. The final R2 values between the fixed-site pDRs and the collocated HI2.5 measurements ranged between 0.53 and 0.72. We concluded that with a carefully developed QC procedure, personal nephelometers can provide high-quality data for assessing PM exposures on subjects and at fixed locations. We also recommend that outdoor pDRs be operated in the active mode without a heater and that the RH effect be corrected with an RH correction equation.
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Affiliation(s)
- Chang-Fu Wu
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA 98195, USA.
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Matt GE, Quintana PJE, Hovell MF, Bernert JT, Song S, Novianti N, Juarez T, Floro J, Gehrman C, Garcia M, Larson S. Households contaminated by environmental tobacco smoke: sources of infant exposures. Tob Control 2004; 13:29-37. [PMID: 14985592 PMCID: PMC1747815 DOI: 10.1136/tc.2003.003889] [Citation(s) in RCA: 287] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
OBJECTIVES To examine (1) whether dust and surfaces in households of smokers are contaminated with environmental tobacco smoke (ETS); (2) whether smoking parents can protect their infants by smoking outside and away from the infant; and (3) whether contaminated dust, surfaces, and air contribute to ETS exposure in infants. DESIGN Quasi-experiment comparing three types of households with infants: (1) non-smokers who believe they have protected their children from ETS; (2) smokers who believe they have protected their children from ETS; (3) smokers who expose their children to ETS. SETTING Homes of smokers and non-smokers. PARTICIPANTS Smoking and non-smoking mothers and their infants < or = 1 year. MAIN OUTCOME MEASURES ETS contamination as measured by nicotine in household dust, indoor air, and household surfaces. ETS exposure as measured by cotinine levels in infant urine. RESULTS ETS contamination and ETS exposure were 5-7 times higher in households of smokers trying to protect their infants by smoking outdoors than in households of non-smokers. ETS contamination and exposure were 3-8 times higher in households of smokers who exposed their infants to ETS by smoking indoors than in households of smokers trying to protect their children by smoking outdoors. CONCLUSIONS Dust and surfaces in homes of smokers are contaminated with ETS. Infants of smokers are at risk of ETS exposure in their homes through dust, surfaces, and air. Smoking outside the home and away from the infant reduces but does not completely protect a smoker's home from ETS contamination and a smoker's infant from ETS exposure.
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Affiliation(s)
- G E Matt
- Department of Psychology, San Diego State University, San Diego, California 92182-4611, USA.
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Delfino RJ, Quintana PJE, Floro J, Gastañaga VM, Samimi BS, Kleinman MT, Liu LJS, Bufalino C, Wu CF, McLaren CE. Association of FEV1 in asthmatic children with personal and microenvironmental exposure to airborne particulate matter. Environ Health Perspect 2004; 112:932-41. [PMID: 15175185 PMCID: PMC1242025 DOI: 10.1289/ehp.6815] [Citation(s) in RCA: 104] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Exposure to particulate matter (PM) air pollution has been shown to exacerbate children's asthma, but the exposure sources and temporal characteristics are still under study. Children's exposure to PM is likely to involve both combustion-related ambient PM and PM related to a child's activity in various indoor and outdoor microenvironments. Among 19 children with asthma, 9-17 years of age, we examined the relationship of temporal changes in percent predicted forced expiratory volume in 1 sec (FEV1) to personal continuous PM exposure and to 24-hr average gravimetric PM mass measured at home and central sites. Subjects were followed for 2 weeks during either the fall of 1999 or the spring of 2000, in a southern California region affected by transported air pollution. FEV(subscript)1(/subscript) was measured by subjects in the morning, afternoon, and evening. Exposure measurements included continuous PM using a passive nephelometer carried by subjects; indoor, outdoor home, and central-site 24-hr gravimetric PM2.5 (PM of aerodynamic diameter < 2.5 microm) and PM10; and central-site hourly PM10, nitrogen dioxide, and ozone. Data were analyzed with linear mixed models controlling for within-subject autocorrelation, FEV1 maneuver time, and exposure period. We found inverse associations of FEV1 with increasing PM exposure during the 24 hr before the FEV1 maneuver and with increasing multiday PM averages. Deficits in percent predicted FEV1 (95% confidence interval) for given PM interquartile ranges measured during the preceding 24-hr were as follows: 128 microg/m3 1-hr maximum personal PM, -6.0% (-10.5 to -1.4); 30 microg/m3 24-hr average personal PM, -5.9% (-10.8 to -1.0); 6.7 microg/m3 indoor home PM2.5, -1.6% (-2.8 to -0.4); 16 microg/m3 indoor home PM10, -2.1% (-3.7 to -0.4); 7.1 microg/m3 outdoor home PM2.5, -1.1% (-2.4 to 0.1); and 7.5 microg/m3 central-site PM2.5, -0.7% (-1.9 to 0.4). Stronger associations were found for multiday moving averages of PM for both personal and stationary-site PM. Stronger associations with personal PM were found in boys allergic to indoor allergens. FEV1 was weakly associated with NO2 but not with O3. Results suggest mixed respiratory effects of PM in asthmatic children from both ambient background exposures and personal exposures in various microenvironments.
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Affiliation(s)
- Ralph J Delfino
- Epidemiology Division, Department of Medicine, College of Medicine, University of California at Irvine, 224 Irvine hall, Irvine, CA 92697-7550, USA.
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