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Geldsetzer P, Fridljand D, Kiang MV, Bendavid E, Heft-Neal S, Burke M, Thieme AH, Benmarhnia T. Disparities in air pollution attributable mortality in the US population by race/ethnicity and sociodemographic factors. Nat Med 2024:10.1038/s41591-024-03117-0. [PMID: 38951636 DOI: 10.1038/s41591-024-03117-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Accepted: 06/05/2024] [Indexed: 07/03/2024]
Abstract
There are large differences in premature mortality in the USA by race/ethnicity, education, rurality and social vulnerability index groups. Using existing concentration-response functions, published particulate matter (PM2.5) air pollution estimates, population estimates at the census tract level and county-level mortality data from the US National Vital Statistics System, we estimated the degree to which these mortality discrepancies can be attributed to differences in exposure and susceptibility to PM2.5. We show that differences in PM2.5-attributable mortality were consistently more pronounced by race/ethnicity than by education, rurality or social vulnerability index, with the Black American population having the highest proportion of deaths attributable to PM2.5 in all years from 1990 to 2016. Our model estimates that over half of the difference in age-adjusted all-cause mortality between the Black American and non-Hispanic white population was attributable to PM2.5 in the years 2000 to 2011. This difference decreased only marginally between 2000 and 2015, from 53.4% (95% confidence interval 51.2-55.9%) to 49.9% (95% confidence interval 47.8-52.2%), respectively. Our findings underscore the need for targeted air quality interventions to address environmental health disparities.
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Affiliation(s)
- Pascal Geldsetzer
- Division of Primary Care and Population Health, Department of Medicine, Stanford University, Stanford, CA, USA.
- Department of Epidemiology and Population Health, Stanford University, Stanford, CA, USA.
- Chan Zuckerberg Biohub - San Francisco, San Francisco, CA, USA.
| | - Daniel Fridljand
- Division of Primary Care and Population Health, Department of Medicine, Stanford University, Stanford, CA, USA
- Heidelberg Institute of Global Health (HIGH), Heidelberg University, Heidelberg, Germany
- Department of Mathematics, Yale University, New Haven, CT, USA
| | - Mathew V Kiang
- Department of Epidemiology and Population Health, Stanford University, Stanford, CA, USA
| | - Eran Bendavid
- Division of Primary Care and Population Health, Department of Medicine, Stanford University, Stanford, CA, USA
- Department of Health Policy, Stanford University, Stanford, CA, USA
| | - Sam Heft-Neal
- Center on Food Security and the Environment, Stanford University, Stanford, CA, USA
| | - Marshall Burke
- Center on Food Security and the Environment, Stanford University, Stanford, CA, USA
- Doerr School of Sustainability, Stanford University, Stanford, CA, USA
| | - Alexander H Thieme
- Stanford Center for Biomedical Informatics Research (BMIR), Department of Medicine, Stanford University, Stanford, CA, USA
- Department of Radiation Oncology, Charité - Universitätsmedizin Berlin, Berlin, Germany
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Tarik Benmarhnia
- Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, USA
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santéenvironnement et travail) - UMR_S 1085, Rennes, France
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Fang F, Ritz B, Rao J, Zhu Y, Tashkin DP, Morgenstern H, Zhang ZF. Association between ambient exposure to PM 2.5 and upper aerodigestive tract cancer in Los Angeles. Int J Cancer 2024; 154:1579-1586. [PMID: 38180239 PMCID: PMC10932807 DOI: 10.1002/ijc.34835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 12/06/2023] [Accepted: 12/12/2023] [Indexed: 01/06/2024]
Abstract
Fine particulate matter (PM2.5 ) contains carcinogens similar to those generated by tobacco smoking, which may increase the risks of developing smoking-related cancers, such as upper aerodigestive track (UADT) cancers, for both smokers and never-smokers. Therefore, it is imperative to understand the relation between ambient PM2.5 exposure and risk of UADT cancers. A population-based case-control study involving 565 incident UADT cancer cases and 983 controls was conducted in Los Angeles County from 1999 to 2004. The average residential PM2.5 concentration 1 year before the diagnosis date for cases and the reference date for controls was assessed using a chemical transport model. The association between ambient PM2.5 and the UADT cancers was estimated by unconditional logistic regression, adjusting for confounders at the individual and block-group level. Stratified analyses were conducted by sex, tobacco smoking status and UADT subsites. We also assessed the interaction between PM2.5 and tobacco smoking on UADT cancers. PM2.5 concentrations were associated with an elevated odds of UADT cancers (adjusted odds ratio = 1.21 per interquartile range [4.5 μg/m3 ] increase; 95% confidence interval: 1.02, 1.44). The association between PM2.5 and UADT cancers was similar across UADT subsites, sex and tobacco smoking status. The interaction between PM2.5 and tobacco smoking on UADT cancers was approximately additive on the odds scale. The effect estimate for PM2.5 and UADT cancers was similar among never smokers. Our findings support the hypothesis that exposure to PM2.5 increases the risk of UADT cancers. Improvements in air quality may reduce the risk of UADT cancers.
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Affiliation(s)
- Fang Fang
- Department of Epidemiology, UCLA Fielding School of Public Health, Los Angeles, California
| | - Beate Ritz
- Department of Epidemiology, UCLA Fielding School of Public Health, Los Angeles, California
- Department of Environmental Health Sciences, UCLA Fielding School of Public Health, Los Angeles, California
| | - Jianyu Rao
- Department of Epidemiology, UCLA Fielding School of Public Health, Los Angeles, California
- Department of Pathology and Laboratory Medicine, UCLA David Geffen School of Medicine, Los Angeles, California
| | - Yifang Zhu
- Department of Environmental Health Sciences, UCLA Fielding School of Public Health, Los Angeles, California
| | - Donald P. Tashkin
- Division of Pulmonary and Critical Care Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Hal Morgenstern
- Departments of Epidemiology and Environmental Health Sciences, School of Public Health and Department of Urology, Medical School, University of Michigan, Ann Arbor, Michigan
| | - Zuo-Feng Zhang
- Department of Epidemiology, UCLA Fielding School of Public Health, Los Angeles, California
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Geldsetzer P, Fridljand D, Kiang MV, Bendavid E, Heft-Neal S, Burke M, Thieme AH, Benmarhnia T. Sociodemographic and geographic variation in mortality attributable to air pollution in the United States. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2024:2024.04.17.24305943. [PMID: 38699349 PMCID: PMC11065005 DOI: 10.1101/2024.04.17.24305943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2024]
Abstract
There are large differences in premature mortality in the USA by racial/ethnic, education, rurality, and social vulnerability index groups. Using existing concentration-response functions, particulate matter (PM2.5) air pollution, population estimates at the tract level, and county-level mortality data, we estimated the degree to which these mortality discrepancies can be attributed to differences in exposure and susceptibility to PM2.5. We show that differences in mortality attributable to PM2.5 were consistently more pronounced between racial/ethnic groups than by education, rurality, or social vulnerability index, with the Black American population having by far the highest proportion of deaths attributable to PM2.5 in all years from 1990 to 2016. Over half of the difference in age-adjusted all-cause mortality between the Black American and non-Hispanic White population was attributable to PM2.5 in the years 2000 to 2011.
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Affiliation(s)
- Pascal Geldsetzer
- Division of Primary Care and Population Health, Department of Medicine, Stanford University; Stanford, CA 94305, USA
- Department of Epidemiology and Population Health, Stanford University; Stanford, CA 94305, USA
- Chan Zuckerberg Biohub; San Francisco, CA 94158, USA
| | - Daniel Fridljand
- Division of Primary Care and Population Health, Department of Medicine, Stanford University; Stanford, CA 94305, USA
- Heidelberg Institute of Global Health (HIGH), Heidelberg University; 69120 Heidelberg, Germany
- Department of Mathematics, Yale University; New Haven, CT 06511, USA
| | - Mathew V. Kiang
- Department of Epidemiology and Population Health, Stanford University; Stanford, CA 94305, USA
| | - Eran Bendavid
- Division of Primary Care and Population Health, Department of Medicine, Stanford University; Stanford, CA 94305, USA
| | - Sam Heft-Neal
- Center on Food Security and the Environment, Stanford University; Stanford, CA 94305, USA
| | - Marshall Burke
- Center on Food Security and the Environment, Stanford University; Stanford, CA 94305, USA
- Department of Earth System Science, Stanford University; Stanford, CA 94305, USA
| | - Alexander H. Thieme
- Stanford Center for Biomedical Informatics Research (BMIR), Department of Medicine, Stanford University; Stanford, CA 94305, USA
- Department of Radiation Oncology, Charité - Universitätsmedizin Berlin; 10117 Berlin, Germany
- Berlin Institute of Health at Charité — Universitätsmedizin Berlin; 10117 Berlin, Germany
| | - Tarik Benmarhnia
- Scripps Institution of Oceanography, University of California, San Diego; La Jolla, CA 92093, USA
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France
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Sun Y, Bhuyan R, Jiao A, Avila CC, Chiu VY, Slezak JM, Sacks DA, Molitor J, Benmarhnia T, Chen JC, Getahun D, Wu J. Association between particulate air pollution and hypertensive disorders in pregnancy: A retrospective cohort study. PLoS Med 2024; 21:e1004395. [PMID: 38669277 PMCID: PMC11087068 DOI: 10.1371/journal.pmed.1004395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 05/10/2024] [Accepted: 04/04/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND Epidemiological findings regarding the association of particulate matter ≤2.5 μm (PM2.5) exposure with hypertensive disorders in pregnancy (HDP) are inconsistent; evidence for HDP risk related to PM2.5 components, mixture effects, and windows of susceptibility is limited. We aimed to investigate the relationships between HDP and exposure to PM2.5 during pregnancy. METHODS AND FINDINGS A large retrospective cohort study was conducted among mothers with singleton pregnancies in Kaiser Permanente Southern California from 2008 to 2017. HDP were defined by International Classification of Diseases-9/10 (ICD-9/10) diagnostic codes and were classified into 2 subcategories based on the severity of HDP: gestational hypertension (GH) and preeclampsia and eclampsia (PE-E). Monthly averages of PM2.5 total mass and its constituents (i.e., sulfate, nitrate, ammonium, organic matter, and black carbon) were estimated using outputs from a fine-resolution geoscience-derived model. Multilevel Cox proportional hazard models were used to fit single-pollutant models; quantile g-computation approach was applied to estimate the joint effect of PM2.5 constituents. The distributed lag model was applied to estimate the association between monthly PM2.5 exposure and HDP risk. This study included 386,361 participants (30.3 ± 6.1 years) with 4.8% (17,977/373,905) GH and 5.0% (19,381/386,361) PE-E cases, respectively. In single-pollutant models, we observed increased relative risks for PE-E associated with exposures to PM2.5 total mass [adjusted hazard ratio (HR) per interquartile range: 1.07, 95% confidence interval (CI) [1.04, 1.10] p < 0.001], black carbon [HR = 1.12 (95% CI [1.08, 1.16] p < 0.001)] and organic matter [HR = 1.06 (95% CI [1.03, 1.09] p < 0.001)], but not for GH. The population attributable fraction for PE-E corresponding to the standards of the US Environmental Protection Agency (9 μg/m3) was 6.37%. In multi-pollutant models, the PM2.5 mixture was associated with an increased relative risk of PE-E ([HR = 1.05 (95% CI [1.03, 1.07] p < 0.001)], simultaneous increase in PM2.5 constituents of interest by a quartile) and PM2.5 black carbon gave the greatest contribution of the overall mixture effects (71%) among all individual constituents. The susceptible window is the late first trimester and second trimester. Furthermore, the risks of PE-E associated with PM2.5 exposure were significantly higher among Hispanic and African American mothers and mothers who live in low- to middle-income neighborhoods (p < 0.05 for Cochran's Q test). Study limitations include potential exposure misclassification solely based on residential outdoor air pollution, misclassification of disease status defined by ICD codes, the date of diagnosis not reflecting the actual time of onset, and lack of information on potential covariates and unmeasured factors for HDP. CONCLUSIONS Our findings add to the literature on associations between air pollution exposure and HDP. To our knowledge, this is the first study reporting that specific air pollution components, mixture effects, and susceptible windows of PM2.5 may affect GH and PE-E differently.
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Affiliation(s)
- Yi Sun
- Institute of Medical Information, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Department of Environmental and Occupational Health, Program in Public Health, University of California, Irvine, California, United States of America
| | - Rashmi Bhuyan
- Department of Environmental and Occupational Health, Program in Public Health, University of California, Irvine, California, United States of America
- Occupational and Environmental Medicine Residency Program, University of California, Irvine, California, United States of America
- Department of Occupational Medicine, Kaiser Permanente Northern California, Antioch, California, United States of America
| | - Anqi Jiao
- Department of Environmental and Occupational Health, Program in Public Health, University of California, Irvine, California, United States of America
| | - Chantal C. Avila
- Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, California, United States of America
| | - Vicki Y. Chiu
- Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, California, United States of America
| | - Jeff M. Slezak
- Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, California, United States of America
| | - David A. Sacks
- Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, California, United States of America
- Department of Obstetrics and Gynecology, University of Southern California, Keck School of Medicine, Los Angeles, California, United States of America
| | - John Molitor
- College of Public Health and Human Sciences, Oregon State University, Corvallis, Oregon, United States of America
| | - Tarik Benmarhnia
- Scripps Institution of Oceanography, University of California, San Diego, California, United States of America
| | - Jiu-Chiuan Chen
- Departments of Population & Public Health Sciences and Neurology, University of Southern California, Keck School of Medicine, Los Angeles, California, United States of America
| | - Darios Getahun
- Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, California, United States of America
- Department of Health Systems Science, Kaiser Permanente Bernard J. Tyson School of Medicine, Pasadena, California, United States of America
| | - Jun Wu
- Department of Environmental and Occupational Health, Program in Public Health, University of California, Irvine, California, United States of America
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Riggs DW, Baumgartner KB, Baumgartner R, Boone S, Judd SE, Bhatnagar A. Long-term exposure to air pollution and risk of stroke by ecoregions: The REGARDS study. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 345:123367. [PMID: 38280465 PMCID: PMC10996890 DOI: 10.1016/j.envpol.2024.123367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 01/11/2024] [Accepted: 01/14/2024] [Indexed: 01/29/2024]
Abstract
Several cohort studies have found associations between long-term exposure to air pollution and stroke risk. However, it is unclear whether the surrounding ecology may modify these associations. This study evaluates associations of air pollution with stroke risk by ecoregions, which are areas of similar type, quality, and quantity of environmental resources in the REasons for Geographic and Racial Differences in Stroke (REGARDS) study. We assessed the incidence of stroke in 26,792 participants (45+ yrs) from the REGARDS study, a prospective cohort recruited across the contiguous United States. One-yr and 3-yr means of PM2.5, PM10, O3, NO2, SO2, and CO were estimated at baseline using data from the Center for Air, Climate, & Energy Solution, and assigned to participants at the census block group level. Incident stroke was ascertained through September 30, 2020. Relations of air pollutants with the risk of incident stroke were estimated using Cox proportional hazards models, adjusting for relevant demographics, behavioral risk factors, and neighborhood urbanicity. Models were stratified by EPA designated ecoregions. A 5.4 μg/m3 (interquartile range) increase in 1-yr PM10 was associated with a hazard ratio (95 %CI) for incident stroke of 1.07 (1.003, 1.15) in the overall study population. We did not find evidence of positive associations for PM2.5, O3, NO2, SO2, and CO in the fully adjusted models. In our ecoregion-specific analysis, associations of PM2.5 with stroke were stronger in the Great Plains ecoregion (HR = 1.44) than other ecoregions, while associations for PM10 were strongest in the Eastern Temperate Forests region (HR = 1.15). The associations between long-term exposure to air pollution and risk of stroke varied by ecoregion. Our results suggests that the type, quality, and quantity of the surrounding ecology can modify the effects of air pollution on risk of stroke.
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Affiliation(s)
- Daniel W Riggs
- Christina Lee Brown Envirome Institute, University of Louisville, Louisville, KY, United States; Department of Epidemiology and Population Health, University of Louisville, Louisville, KY, United States.
| | - Kathy B Baumgartner
- Department of Epidemiology and Population Health, University of Louisville, Louisville, KY, United States
| | - Richard Baumgartner
- Department of Epidemiology and Population Health, University of Louisville, Louisville, KY, United States
| | - Stephanie Boone
- Department of Epidemiology and Population Health, University of Louisville, Louisville, KY, United States
| | - Suzanne E Judd
- Department of Biostatistics, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Aruni Bhatnagar
- Christina Lee Brown Envirome Institute, University of Louisville, Louisville, KY, United States
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Bevan GH. All the Risk You Cannot See: Residual Risk of Airborne PM 2.5 After CABG. JACC. ADVANCES 2024; 3:100782. [PMID: 38939397 PMCID: PMC11198703 DOI: 10.1016/j.jacadv.2023.100782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/29/2024]
Affiliation(s)
- Graham H. Bevan
- Division of Cardiology, University of Washington, Seattle, Washington, USA
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Kwon D, Paul KC, Yu Y, Zhang K, Folle AD, Wu J, Bronstein JM, Ritz B. Traffic-related air pollution and Parkinson's disease in central California. ENVIRONMENTAL RESEARCH 2024; 240:117434. [PMID: 37858688 PMCID: PMC11232690 DOI: 10.1016/j.envres.2023.117434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 10/09/2023] [Accepted: 10/16/2023] [Indexed: 10/21/2023]
Abstract
BACKGROUND Prior studies suggested that air pollution exposure may increase the risk of Parkinson's Disease (PD). We investigated the long-term impacts of traffic-related and multiple sources of particulate air pollution on PD in central California. METHODS Our case-control analysis included 761 PD patients and 910 population controls. We assessed exposure at residential and occupational locations from 1981 to 2016, estimating annual average carbon monoxide (CO) concentrations - a traffic pollution marker - based on the California Line Source Dispersion Model, version 4. Additionally, particulate matter (PM2.5) concentrations were based on a nationwide geospatial chemical transport model. Exposures were assessed as 10-year averages with a 5-year lag time prior to a PD diagnosis for cases and an interview date for controls, subsequently categorized into tertiles. Logistic regression models were used, adjusting for various factors. RESULTS Traffic-related CO was associated with an increased odds ratio for PD at residences (OR for T3 vs. T1: 1.58; 95% CI: 1.20, 2.10; p-trend = 0.02) and workplaces (OR for T3 vs. T1: 1.91; 95% CI: 1.22, 3.00; p-trend <0.01). PM2.5 was also positively associated with PD at residences (OR for T3 vs. T1: 1.62; 95% CI: 1.22, 2.15; p-trend <0.01) and workplaces (OR for T3 vs. T1: 1.85; 95% CI: 1.21, 2.85; p-trend <0.01). Associations remained robust after additional adjustments for smoking status and pesticide exposure and were consistent across different exposure periods. CONCLUSION We found that long-term modeled exposure to local traffic-related air pollution (CO) and fine particulates from multiple sources (PM2.5) at homes and workplaces in central California was associated with an increased risk of PD.
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Affiliation(s)
- Dayoon Kwon
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, United States
| | - Kimberly C Paul
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, United States
| | - Yu Yu
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, United States; UCLA Center for Health Policy Research, University of California, Los Angeles, United States
| | - Keren Zhang
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, United States
| | - Aline D Folle
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, United States
| | - Jun Wu
- Department of Environmental and Occupational Health, Program in Public Health, University of California, Irvine, United States
| | - Jeff M Bronstein
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, United States
| | - Beate Ritz
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, United States; Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, United States.
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Blanco MN, Shaffer RM, Li G, Adar SD, Carone M, Szpiro AA, Kaufman JD, Larson TV, Hajat A, Larson EB, Crane PK, Sheppard L. Traffic-related air pollution and dementia incidence in the Adult Changes in Thought Study. ENVIRONMENT INTERNATIONAL 2024; 183:108418. [PMID: 38185046 PMCID: PMC10873482 DOI: 10.1016/j.envint.2024.108418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 12/22/2023] [Accepted: 01/02/2024] [Indexed: 01/09/2024]
Abstract
BACKGROUND While epidemiologic evidence links higher levels of exposure to fine particulate matter (PM2.5) to decreased cognitive function, fewer studies have investigated links with traffic-related air pollution (TRAP), and none have examined ultrafine particles (UFP, ≤100 nm) and late-life dementia incidence. OBJECTIVE To evaluate associations between TRAP exposures (UFP, black carbon [BC], and nitrogen dioxide [NO2]) and late-life dementia incidence. METHODS We ascertained dementia incidence in the Seattle-based Adult Changes in Thought (ACT) prospective cohort study (beginning in 1994) and assessed ten-year average TRAP exposures for each participant based on prediction models derived from an extensive mobile monitoring campaign. We applied Cox proportional hazards models to investigate TRAP exposure and dementia incidence using age as the time axis and further adjusting for sex, self-reported race, calendar year, education, socioeconomic status, PM2.5, and APOE genotype. We ran sensitivity analyses where we did not adjust for PM2.5 and other sensitivity and secondary analyses where we adjusted for multiple pollutants, applied alternative exposure models (including total and size-specific UFP), modified the adjustment covariates, used calendar year as the time axis, assessed different exposure periods, dementia subtypes, and others. RESULTS We identified 1,041 incident all-cause dementia cases in 4,283 participants over 37,102 person-years of follow-up. We did not find evidence of a greater hazard of late-life dementia incidence with elevated levels of long-term TRAP exposures. The estimated hazard ratio of all-cause dementia was 0.98 (95 % CI: 0.92-1.05) for every 2000 pt/cm3 increment in UFP, 0.95 (0.89-1.01) for every 100 ng/m3 increment in BC, and 0.96 (0.91-1.02) for every 2 ppb increment in NO2. These findings were consistent across sensitivity and secondary analyses. DISCUSSION We did not find evidence of a greater hazard of late-life dementia risk with elevated long-term TRAP exposures in this population-based prospective cohort study.
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Affiliation(s)
- Magali N Blanco
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, USA.
| | - Rachel M Shaffer
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, USA
| | - Ge Li
- VA Northwest Network Mental Illness Research, Education, and Clinical Center, Virginia Puget Sound Health Care System, Seattle, WA, USA; Geriatric Research, Education, and Clinical Center, Virginia Puget Sound Health Care System, Seattle, WA, USA; Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, USA
| | - Sara D Adar
- Department of Epidemiology, University of Michigan, Ann Arbor, MI, USA
| | - Marco Carone
- Department of Biostatistics, University of Washington, Seattle, WA, USA
| | - Adam A Szpiro
- Department of Biostatistics, University of Washington, Seattle, WA, USA
| | - Joel D Kaufman
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, USA; Department of Epidemiology, University of Washington, Seattle, WA, USA; Department of Medicine, University of Washington, Seattle, WA, USA
| | - Timothy V Larson
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, USA; Department of Civil & Environmental Engineering, University of Washington, Seattle, WA, USA
| | - Anjum Hajat
- Department of Epidemiology, University of Washington, Seattle, WA, USA
| | - Eric B Larson
- Department of Medicine, University of Washington, Seattle, WA, USA
| | - Paul K Crane
- Department of Medicine, University of Washington, Seattle, WA, USA
| | - Lianne Sheppard
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, USA; Department of Biostatistics, University of Washington, Seattle, WA, USA
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Chen J, Braun D, Christidis T, Cork M, Rodopoulou S, Samoli E, Stafoggia M, Wolf K, Wu X, Yuchi W, Andersen ZJ, Atkinson R, Bauwelinck M, de Hoogh K, Janssen NA, Katsouyanni K, Klompmaker JO, Kristoffersen DT, Lim YH, Oftedal B, Strak M, Vienneau D, Zhang J, Burnett RT, Hoek G, Dominici F, Brauer M, Brunekreef B. Long-Term Exposure to Low-Level PM2.5 and Mortality: Investigation of Heterogeneity by Harmonizing Analyses in Large Cohort Studies in Canada, United States, and Europe. ENVIRONMENTAL HEALTH PERSPECTIVES 2023; 131:127003. [PMID: 38039140 PMCID: PMC10691665 DOI: 10.1289/ehp12141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 08/10/2023] [Accepted: 11/09/2023] [Indexed: 12/03/2023]
Abstract
BACKGROUND Studies across the globe generally reported increased mortality risks associated with particulate matter with aerodynamic diameter ≤ 2.5 μ m (PM 2.5 ) exposure with large heterogeneity in the magnitude of reported associations and the shape of concentration-response functions (CRFs). We aimed to evaluate the impact of key study design factors (including confounders, applied exposure model, population age, and outcome definition) on PM 2.5 effect estimates by harmonizing analyses on three previously published large studies in Canada [Mortality-Air Pollution Associations in Low Exposure Environments (MAPLE), 1991-2016], the United States (Medicare, 2000-2016), and Europe [Effects of Low-Level Air Pollution: A Study in Europe (ELAPSE), 2000-2016] as much as possible. METHODS We harmonized the study populations to individuals 65 + years of age, applied the same satellite-derived PM 2.5 exposure estimates, and selected the same sets of potential confounders and the same outcome. We evaluated whether differences in previously published effect estimates across cohorts were reduced after harmonization among these factors. Additional analyses were conducted to assess the influence of key design features on estimated risks, including adjusted covariates and exposure assessment method. A combined CRF was assessed with meta-analysis based on the extended shape-constrained health impact function (eSCHIF). RESULTS More than 81 million participants were included, contributing 692 million person-years of follow-up. Hazard ratios and 95% confidence intervals (CIs) for all-cause mortality associated with a 5 - μ g / m 3 increase in PM 2.5 were 1.039 (1.032, 1.046) in MAPLE, 1.025 (1.021, 1.029) in Medicare, and 1.041 (1.014, 1.069) in ELAPSE. Applying a harmonized analytical approach marginally reduced difference in the observed associations across the three studies. Magnitude of the association was affected by the adjusted covariates, exposure assessment methodology, age of the population, and marginally by outcome definition. Shape of the CRFs differed across cohorts but generally showed associations down to the lowest observed PM 2.5 levels. A common CRF suggested a monotonically increased risk down to the lowest exposure level. https://doi.org/10.1289/EHP12141.
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Affiliation(s)
- Jie Chen
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, the Netherlands
| | - Danielle Braun
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
- Department of Data Sciences, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Tanya Christidis
- Health Analysis Division, Statistics Canada, Ottawa, Ontario, Canada
| | - Michael Cork
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Sophia Rodopoulou
- Department of Hygiene, Epidemiology and Medical Statistics, Medical School, National and Kapodstrian University of Athens, Athens, Greece
| | - Evangelia Samoli
- Department of Hygiene, Epidemiology and Medical Statistics, Medical School, National and Kapodstrian University of Athens, Athens, Greece
| | - Massimo Stafoggia
- Department of Epidemiology, Lazio Region Health Service/ASL Roma 1, Rome, Italy
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Kathrin Wolf
- Institute of Epidemiology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Xiao Wu
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Weiran Yuchi
- School of Population and Public Health, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Zorana J. Andersen
- Section of Environmental Health, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Richard Atkinson
- Population Health Research Institute, St George’s, University of London, London, UK
| | - Mariska Bauwelinck
- Interface Demography, Department of Sociology, Vrije Universiteit Brussel, Brussels, Belgium
| | - Kees de Hoogh
- Swiss Tropical and Public Health Institute, Allschwil, Switzerland
- University of Basel, Basel, Switzerland
| | - Nicole A.H. Janssen
- National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands
| | - Klea Katsouyanni
- Department of Hygiene, Epidemiology and Medical Statistics, Medical School, National and Kapodstrian University of Athens, Athens, Greece
- MRC Center for Environment and Health, Environmental Research Group, School of Public Health, Imperial College London, London, UK
| | - Jochem O. Klompmaker
- National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Doris Tove Kristoffersen
- Division of Climate and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Youn-Hee Lim
- Section of Environmental Health, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Bente Oftedal
- Division of Climate and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Maciej Strak
- National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands
| | - Danielle Vienneau
- Swiss Tropical and Public Health Institute, Allschwil, Switzerland
- University of Basel, Basel, Switzerland
| | - Jiawei Zhang
- Section of Environmental Health, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | | | - Gerard Hoek
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, the Netherlands
| | - Francesca Dominici
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Michael Brauer
- School of Population and Public Health, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Bert Brunekreef
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, the Netherlands
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10
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Sun Y, Headon KS, Jiao A, Slezak JM, Avila CC, Chiu VY, Sacks DA, Molitor J, Benmarhnia T, Chen JC, Getahun D, Wu J. Association of Antepartum and Postpartum Air Pollution Exposure With Postpartum Depression in Southern California. JAMA Netw Open 2023; 6:e2338315. [PMID: 37851440 PMCID: PMC10585409 DOI: 10.1001/jamanetworkopen.2023.38315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 08/21/2023] [Indexed: 10/19/2023] Open
Abstract
Importance Women are especially vulnerable to mental health matters post partum because of biological, emotional, and social changes during this period. However, epidemiologic evidence of an association between air pollution exposure and postpartum depression (PPD) is limited. Objective To examine the associations between antepartum and postpartum maternal air pollution exposure and PPD. Design, Setting, and Participants This retrospective cohort study used data from Kaiser Permanente Southern California (KPSC) electronic health records and included women who had singleton live births at KPSC facilities between January 1, 2008, and December 31, 2016. Data were analyzed between January 1 and May 10, 2023. Exposures Ambient air pollution exposures were assessed based on maternal residential addresses using monthly averages of particulate matter less than or equal to 2.5 μm (PM2.5), particulate matter less than or equal to 10 μm (PM10), nitrogen dioxide (NO2), and ozone (O3) from spatial interpolation of monitoring station measurements. Constituents of PM2.5 (sulfate, nitrate, ammonium, organic matter, and black carbon) were obtained from fine-resolution geoscience-derived models based on satellite, ground-based monitor, and chemical transport modeling data. Main Outcomes and Measures Participants with an Edinburgh Postnatal Depression Scale score of 10 or higher during the 6 months after giving birth were referred to a clinical interview for further assessment and diagnosis. Ascertainment of PPD was defined using a combination of diagnostic codes and prescription medications. Results The study included 340 679 participants (mean [SD] age, 30.05 [5.81] years), with 25 674 having PPD (7.54%). Increased risks for PPD were observed to be associated with per-IQR increases in antepartum and postpartum exposures to O3 (adjusted odds ratio [AOR], 1.09; 95% CI, 1.06-1.12), PM10 (AOR, 1.02; 95% CI, 1.00-1.04), and PM2.5 (AOR, 1.02; 95% CI, 1. 00-1.03) but not with NO2; PPD risks were mainly associated with PM2.5 organic matter and black carbon. Overall, a higher risk of PPD was associated with O3 during the entire pregnancy and postpartum periods and with PM exposure during the late pregnancy and postpartum periods. Conclusions and Relevance The study findings suggest that long-term exposure to antepartum and postpartum air pollution was associated with higher PPD risks. Identifying the modifiable environmental risk factors and developing interventions are important public health issues to improve maternal mental health and alleviate the disease burden of PPD.
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Affiliation(s)
- Yi Sun
- Institute of Medical Information, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Department of Environmental and Occupational Health, Program in Public Health, University of California, Irvine
| | | | - Anqi Jiao
- Department of Environmental and Occupational Health, Program in Public Health, University of California, Irvine
| | - Jeff M. Slezak
- Department of Research and Evaluation, Kaiser Permanente Southern California, Pasadena, California
| | - Chantal C. Avila
- Department of Research and Evaluation, Kaiser Permanente Southern California, Pasadena, California
| | - Vicki Y. Chiu
- Department of Research and Evaluation, Kaiser Permanente Southern California, Pasadena, California
| | - David A. Sacks
- Department of Research and Evaluation, Kaiser Permanente Southern California, Pasadena, California
- Department of Obstetrics and Gynecology, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - John Molitor
- College of Public Health and Human Sciences, Oregon State University, Corvallis, Oregon
| | - Tarik Benmarhnia
- Scripps Institution of Oceanography, University of California, San Diego
| | - Jiu-Chiuan Chen
- Departments of Population and Public Health Sciences and Neurology, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Darios Getahun
- Department of Research and Evaluation, Kaiser Permanente Southern California, Pasadena, California
- Department of Health Systems Science, Kaiser Permanente Bernard J. Tyson School of Medicine, Pasadena, California
| | - Jun Wu
- Department of Environmental and Occupational Health, Program in Public Health, University of California, Irvine
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11
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Griggs S, Pignatiello G, Motairek I, Rieke J, Howard Q, Crawford SL, Rajagopalan S, Al-Kindi S, Hickman RL. Environmental exposures and blood pressure in adolescents and adults in the T1D exchange clinic registry. J Diabetes Complications 2023; 37:108594. [PMID: 37660429 PMCID: PMC10592032 DOI: 10.1016/j.jdiacomp.2023.108594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 08/11/2023] [Accepted: 08/20/2023] [Indexed: 09/05/2023]
Abstract
AIMS To examine the associations between environmental determinants of health and blood pressure and whether age, sex, or race moderated the associations among 18,754 adolescents and adults from the type 1 diabetes (T1D) Exchange Clinic Registry. METHODS We used multivariable linear regression. Environmental determinants included exposure to ambient fine particulate matter (PM2.5, obtained from an integrated model), nitrogen dioxide (NO2), noise and light pollution, and the normalized difference vegetation index (NDVI, a marker of green space) at the ZIP code level of residence. RESULTS Higher exposure to PM2.5 and NO2, and lower NDVI, was associated with higher systolic and diastolic blood pressure, and higher light pollution exposure were similarly associated with higher diastolic blood pressure. These associations between environmental exposures and blood pressure remained significant after accounting for other covariates (age, sex, race/ethnicity, BMI, and T1D duration). With aging, the negative association between NDVI and blood pressure weakened. CONCLUSIONS These findings emphasize the significance of minimizing exposure to environmental pollutants, including PM2.5 and NO2, as well as ensuring access to areas with higher NDVI, to promote cardiovascular health in individuals with T1D.
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Affiliation(s)
- Stephanie Griggs
- Case Western Reserve University, Frances Payne Bolton School of Nursing, Cleveland, OH 44106, United States of America.
| | - Grant Pignatiello
- Case Western Reserve University, Frances Payne Bolton School of Nursing, Cleveland, OH 44106, United States of America; Case Western Reserve University, Frances Payne Bolton School of Nursing, United States of America.
| | - Issam Motairek
- Cardiovascular Phenomics Core, School of Medicine, Case Western Reserve University, United States of America.
| | - Jorden Rieke
- Case Western Reserve University, Frances Payne Bolton School of Nursing, Cleveland, OH 44106, United States of America; Case Western Reserve University, Frances Payne Bolton School of Nursing, United States of America.
| | - Quiana Howard
- Case Western Reserve University, Frances Payne Bolton School of Nursing, Cleveland, OH 44106, United States of America.
| | - Sybil L Crawford
- University of Massachusetts Chan Medical School, Tan Chingfen Graduate School of Nursing, Worcester, MA 01655, United States of America.
| | - Sanjay Rajagopalan
- Cardiovascular Research Institute, Case Western Reserve University, School of Medicine, United States of America.
| | - Sadeer Al-Kindi
- Center for Vascular Metabolic Disease, School of Medicine, United States of America.
| | - Ronald L Hickman
- Case Western Reserve University, Frances Payne Bolton School of Nursing, Cleveland, OH 44106, United States of America.
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12
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Li C, van Donkelaar A, Hammer MS, McDuffie EE, Burnett RT, Spadaro JV, Chatterjee D, Cohen AJ, Apte JS, Southerland VA, Anenberg SC, Brauer M, Martin RV. Reversal of trends in global fine particulate matter air pollution. Nat Commun 2023; 14:5349. [PMID: 37660164 PMCID: PMC10475088 DOI: 10.1038/s41467-023-41086-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 08/21/2023] [Indexed: 09/04/2023] Open
Abstract
Ambient fine particulate matter (PM2.5) is the world's leading environmental health risk factor. Quantification is needed of regional contributions to changes in global PM2.5 exposure. Here we interpret satellite-derived PM2.5 estimates over 1998-2019 and find a reversal of previous growth in global PM2.5 air pollution, which is quantitatively attributed to contributions from 13 regions. Global population-weighted (PW) PM2.5 exposure, related to both pollution levels and population size, increased from 1998 (28.3 μg/m3) to a peak in 2011 (38.9 μg/m3) and decreased steadily afterwards (34.7 μg/m3 in 2019). Post-2011 change was related to exposure reduction in China and slowed exposure growth in other regions (especially South Asia, the Middle East and Africa). The post-2011 exposure reduction contributes to stagnation of growth in global PM2.5-attributable mortality and increasing health benefits per µg/m3 marginal reduction in exposure, implying increasing urgency and benefits of PM2.5 mitigation with aging population and cleaner air.
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Affiliation(s)
- Chi Li
- Department of Energy, Environmental & Chemical Engineering, Washington University in St. Louis, St. Louis, MO, USA.
| | - Aaron van Donkelaar
- Department of Energy, Environmental & Chemical Engineering, Washington University in St. Louis, St. Louis, MO, USA
| | - Melanie S Hammer
- Department of Energy, Environmental & Chemical Engineering, Washington University in St. Louis, St. Louis, MO, USA
| | - Erin E McDuffie
- Department of Energy, Environmental & Chemical Engineering, Washington University in St. Louis, St. Louis, MO, USA
- Office of Atmospheric Protection, Climate Change Division, U.S. Environmental Protection Agency, Washington, D.C., USA
| | - Richard T Burnett
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
- Population Studies Division, Health Canada, Ottawa, ON, Canada
| | - Joseph V Spadaro
- Spadaro Environmental Research Consultants (SERC), Philadelphia, PA, USA
- European Centre for Environment and Health, World Health Organization (Consultant), Bonn, North Rhine-Westphalia, Germany
| | - Deepangsu Chatterjee
- Department of Energy, Environmental & Chemical Engineering, Washington University in St. Louis, St. Louis, MO, USA
| | - Aaron J Cohen
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
- Health Effects Institute, Boston, MA, USA
| | - Joshua S Apte
- Department of Civil and Environmental Engineering, University of California, Berkeley, CA, USA
- School of Public Health, University of California, Berkeley, Berkeley, CA, USA
| | - Veronica A Southerland
- Milken Institute School of Public Health, George Washington University, Washington, DC, USA
| | - Susan C Anenberg
- Milken Institute School of Public Health, George Washington University, Washington, DC, USA
| | - Michael Brauer
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
- School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada
| | - Randall V Martin
- Department of Energy, Environmental & Chemical Engineering, Washington University in St. Louis, St. Louis, MO, USA
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13
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Sangaramoorthy M, Yang J, Tseng C, Wu J, Ritz B, Larson TV, Fruin S, Stram DO, Park SSL, Franke AA, Wilkens LR, Samet JM, Le Marchand L, Shariff-Marco S, Haiman CA, Wu AH, Cheng I. Particulate matter, traffic-related air pollutants, and circulating C-reactive protein levels: The Multiethnic Cohort Study. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 332:121962. [PMID: 37277070 PMCID: PMC10870935 DOI: 10.1016/j.envpol.2023.121962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Revised: 06/01/2023] [Accepted: 06/02/2023] [Indexed: 06/07/2023]
Abstract
Inhaled particles and gases can harm health by promoting chronic inflammation in the body. Few studies have investigated the relationship between outdoor air pollution and inflammation by race and ethnicity, socioeconomic status, and lifestyle risk factors. We examined associations of particulate matter (PM) and other markers of traffic-related air pollution with circulating levels of C-reactive protein (CRP), a biomarker of systemic inflammation. CRP was measured from blood samples obtained in 1994-2016 from 7,860 California residents participating in the Multiethnic Cohort (MEC) Study. Exposure to PM (aerodynamic diameter ≤2.5 μm [PM2.5], ≤10 μm [PM10], and between 2.5 and 10 μm [PM10-2.5]), nitrogen oxides (NOx, including nitrogen dioxide [NO2]), carbon monoxide (CO), ground-level ozone (O3), and benzene averaged over one or twelve months before blood draw were estimated based on participants' addresses. Percent change in geometric mean CRP levels and 95% confidence intervals (CI) per standard concentration increase of each pollutant were estimated using multivariable generalized linear regression. Among 4,305 females (55%) and 3,555 males (45%) (mean age 68.1 [SD 7.5] years at blood draw), CRP levels increased with 12-month exposure to PM10 (11.0%, 95% CI: 4.2%, 18.2% per 10 μg/m3), PM10-2.5 (12.4%, 95% CI: 1.4%, 24.5% per 10 μg/m3), NOx (10.4%, 95% CI: 2.2%, 19.2% per 50 ppb), and benzene (2.9%, 95% CI: 1.1%, 4.6% per 1 ppb). In subgroup analyses, these associations were observed in Latino participants, those who lived in low socioeconomic neighborhoods, overweight or obese participants, and never or former smokers. No consistent patterns were found for 1-month pollutant exposures. This investigation identified associations of primarily traffic-related air pollutants, including PM, NOx, and benzene, with CRP in a multiethnic population. The diversity of the MEC across demographic, socioeconomic, and lifestyle factors allowed us to explore the generalizability of the effects of air pollution on inflammation across subgroups.
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Affiliation(s)
- Meera Sangaramoorthy
- Department of Epidemiology and Biostatistics, School of Medicine, University of California San Francisco, San Francisco, CA, USA
| | - Juan Yang
- Department of Epidemiology and Biostatistics, School of Medicine, University of California San Francisco, San Francisco, CA, USA
| | - Chiuchen Tseng
- Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Jun Wu
- Department of Environmental and Occupational Health, Program in Public Health, Susan and Henry Samueli College of Health Sciences, University of California, Irvine, CA, USA
| | - Beate Ritz
- Department of Epidemiology, School of Public Health, University of California, Los Angeles, CA, USA
| | - Timothy V Larson
- Department of Civil & Environmental Engineering, University of Washington, Seattle, WA, USA
| | - Scott Fruin
- Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Daniel O Stram
- Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Sung-Shim Lani Park
- Population Sciences in the Pacific Program (Cancer Epidemiology), University of Hawaii Cancer Center, Honolulu, HI, USA
| | - Adrian A Franke
- Population Sciences in the Pacific Program (Cancer Epidemiology), University of Hawaii Cancer Center, Honolulu, HI, USA
| | - Lynne R Wilkens
- Population Sciences in the Pacific Program (Cancer Epidemiology), University of Hawaii Cancer Center, Honolulu, HI, USA
| | - Jonathan M Samet
- Department of Epidemiology, Colorado School of Public Health, Aurora, CO, USA
| | - Loïc Le Marchand
- Population Sciences in the Pacific Program (Cancer Epidemiology), University of Hawaii Cancer Center, Honolulu, HI, USA
| | - Salma Shariff-Marco
- Department of Epidemiology and Biostatistics, School of Medicine, University of California San Francisco, San Francisco, CA, USA
| | - Christopher A Haiman
- Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Anna H Wu
- Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Iona Cheng
- Department of Epidemiology and Biostatistics, School of Medicine, University of California San Francisco, San Francisco, CA, USA.
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14
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Molitor J, Sun Y, Rubio VG, Benmarhnia T, Chen JC, Avila C, Sacks DA, Chiu V, Slezak J, Getahun D, Wu J. Modeling spatially varying compliance effects of PM 2.5 exposure reductions on gestational diabetes mellitus in southern California: Results from electronic health record data of a large pregnancy cohort. ENVIRONMENTAL RESEARCH 2023; 231:116091. [PMID: 37182828 PMCID: PMC10405446 DOI: 10.1016/j.envres.2023.116091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 03/06/2023] [Accepted: 05/09/2023] [Indexed: 05/16/2023]
Abstract
Gestational diabetes mellitus (GDM) is a major pregnancy complication affecting approximately 14.0% of pregnancies around the world. Air pollution exposure, particularly exposure to PM2.5, has become a major environmental issue affecting health, especially for vulnerable pregnant women. Associations between PM2.5 exposure and adverse birth outcomes are generally assumed to be the same throughout a large geographical area. However, the effects of air pollution on health can very spatially in subpopulations. Such spatially varying effects are likely due to a wide range of contextual neighborhood and individual factors that are spatially correlated, including SES, demographics, exposure to housing characteristics and due to different composition of particulate matter from different emission sources. This combination of elevated environmental hazards in conjunction with socioeconomic-based disparities forms what has been described as a "double jeopardy" for marginalized sub-populations. In this manuscript our analysis combines both an examination of spatially varying effects of a) unit-changes in exposure and examines effects of b) changes from current exposure levels down to a fixed compliance level, where compliance levels correspond to the Air Quality Standards (AQS) set by the U.S. Environmental Protection Agency (EPA) and World Health Organization (WHO) air quality guideline values. Results suggest that exposure reduction policies should target certain "hotspot" areas where size and effects of potential reductions will reap the greatest rewards in terms of health benefits, such as areas of southeast Los Angeles County which experiences high levels of PM2.5 exposures and consist of individuals who may be particularly vulnerable to the effects of air pollution on the risk of GDM.
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Affiliation(s)
- John Molitor
- College of Public Health and Human Sciences, Oregon State University, Corvallis, OR, 97331, USA.
| | - Yi Sun
- Institute of Medical Information, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China; Department of Environmental and Occupational Health, Program in Public Health, University of California, Irvine, CA, USA
| | | | - Tarik Benmarhnia
- Scripps Institution of Oceanography, University of California, San Diego, CA, USA
| | - Jiu-Chiuan Chen
- Departments of Population & Public Health Sciences and Neurology, University of Southern California, Keck School of Medicine, Los Angeles, CA, USA
| | - Chantal Avila
- Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, CA, USA
| | - David A Sacks
- Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, CA, USA; Department of Obstetrics and Gynecology, University of Southern California, Keck School of Medicine, Los Angeles, CA, USA
| | - Vicki Chiu
- Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, CA, USA
| | - Jeff Slezak
- Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, CA, USA
| | - Darios Getahun
- Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, CA, USA; Department of Health Systems Science, Kaiser Permanente Bernard J. Tyson School of Medicine, Pasadena, CA, USA
| | - Jun Wu
- Department of Environmental and Occupational Health, Program in Public Health, University of California, Irvine, CA, USA.
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15
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Jiao A, Sun Y, Avila C, Chiu V, Molitor J, Slezak J, Sacks DA, Chen JC, Benmarhnia T, Getahun D, Wu J. Maternal exposure to ambient air pollution mixture and premature rupture of membranes: Evidence from a large cohort in Southern California (2008-2018). ENVIRONMENT INTERNATIONAL 2023; 177:108030. [PMID: 37329760 PMCID: PMC10947473 DOI: 10.1016/j.envint.2023.108030] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 05/04/2023] [Accepted: 06/09/2023] [Indexed: 06/19/2023]
Abstract
BACKGROUND There is minimal evidence of relationships between maternal air pollution exposure and spontaneous premature rupture of membranes (SPROM), a critical obstetrical problem that can significantly increase maternal and fetal mortality and morbidity. No prior study has explored the PROM risk related to specific components of particulate matter with aerodynamic diameters of ≤ 2.5 µm (PM2.5). We examined associations between maternal exposure to nitrogen dioxide (NO2), ozone (O3), PM2.5, PM10, and PM2.5 constituents and SPROM. METHODS A large retrospective cohort study was conducted and included 427,870 singleton live births from Kaiser Permanente Southern California during 2008-2018. Monthly averages of NO2, O3 (8-h daily maximum), PM2.5, and PM10 were measured using empirical Bayesian kriging based on measurements from monitoring stations. Data on PM2.5 sulfate, nitrate, ammonium, organic matter, and black carbon were obtained from a fine-resolution model. A discrete time approach with pooled logistic regressions was used to estimate associations throughout the pregnancy and based on trimesters and gestational months. The quantile-based g-computation models were fitted to examine the effects of 1) the air pollution mixture of four pollutants of interest and 2) the mixture of PM2.5 components. RESULTS There were 37,857 SPROM cases (8.8%) in our study population. We observed relationships between SPROM and maternal exposure to NO2, O3, and PM2.5. PM2.5 sulfate, nitrate, ammonium, and organic matter were associated with higher SPROM risks in the single-pollutant model. Mixture analyses demonstrated that the overall effects of the air pollution mixture and PM2.5 mixture in this study were mainly driven by O3 and PM2.5 nitrate, respectively. Underweight mothers had a significantly higher risk of SPROM associated with NO2. CONCLUSION Our findings add to the literature on associations between air pollution exposure and SPROM. This is the first study reporting the impact of PM2.5 constituents on SPROM.
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Affiliation(s)
- Anqi Jiao
- Department of Environmental and Occupational Health, Program in Public Health, University of California, Irvine, CA, USA
| | - Yi Sun
- Department of Environmental and Occupational Health, Program in Public Health, University of California, Irvine, CA, USA; Institute of Medical Information, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Chantal Avila
- Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, CA, USA
| | - Vicki Chiu
- Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, CA, USA
| | - John Molitor
- College of Public Health and Human Sciences, Oregon State University, Corvallis, OR, USA
| | - Jeff Slezak
- Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, CA, USA
| | - David A Sacks
- Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, CA, USA; Department of Obstetrics and Gynecology, University of Southern California, Keck School of Medicine, Los Angeles, CA, USA
| | - Jiu-Chiuan Chen
- Department of Population and Public Health Sciences, University of Southern California, Los Angeles, CA, USA
| | - Tarik Benmarhnia
- Scripps Institution of Oceanography, University of California, San Diego, CA, USA
| | - Darios Getahun
- Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, CA, USA; Department of Health Systems Science, Kaiser Permanente Bernard J. Tyson School of Medicine, Pasadena, CA, USA.
| | - Jun Wu
- Department of Environmental and Occupational Health, Program in Public Health, University of California, Irvine, CA, USA.
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16
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Buxton MA, Fleischer NL, Ro A, O’Neill MS. Structural racism, air pollution and the association with adverse birth outcomes in the United States: the value of examining intergenerational associations. FRONTIERS IN EPIDEMIOLOGY 2023; 3:1190407. [PMID: 38455927 PMCID: PMC10910959 DOI: 10.3389/fepid.2023.1190407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 05/26/2023] [Indexed: 03/09/2024]
Abstract
Structurally racist policies and practices of the past are likely to be a driving factor in current day differences in exposure to air pollution and may contribute to observed racial and ethnic disparities in adverse birth outcomes in the United States (U.S.). Non-Hispanic Black women in the U.S. experience poorer health outcomes during pregnancy and throughout the life course compared to non-Hispanic White women. This disparity holds even among non-Hispanic Black women with higher socioeconomic status. Reasons for this finding remain unclear, but long-term environmental exposure, either historical exposure or both historical and ongoing exposure, may contribute. Structural racism likely contributes to differences in social and environmental exposures by race in the U.S. context, and these differences can affect health and wellbeing across multiple generations. In this paper, we briefly review current knowledge and recommendations on the study of race and structural racism in environmental epidemiology, specifically focused on air pollution. We describe a conceptual framework and opportunities to use existing historical data from multiple sources to evaluate multi-generational influences of air pollution and structurally racist policies on birth and other relevant health outcomes. Increased analysis of this kind of data is critical for our understanding of structural racism's impact on multiple factors, including environmental exposures and adverse health outcomes, and identifying how past policies can have enduring legacies in shaping health and well-being in the present day. The intended purpose of this manuscript is to provide an overview of the widespread reach of structural racism, its potential association with health disparities and a comprehensive approach in environmental health research that may be required to study and address these problems in the U.S. The collaborative and methodological approaches we highlight have the potential to identify modifiable factors that can lead to effective interventions for health equity.
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Affiliation(s)
- Miatta A. Buxton
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, MI, United States
| | - Nancy L. Fleischer
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, MI, United States
| | - Annie Ro
- Department of Health, Society, and Behavior, Program in Public Health, University of California, Irvine, Irvine, CA, United States
| | - Marie S. O’Neill
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, MI, United States
- Department of Environmental Health Sciences, School of Public Health, University of Michigan, Ann Arbor, MI, United States
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17
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Swetschinski L, Fong KC, Morello-Frosch R, Marshall JD, Bell ML. Exposures to ambient particulate matter are associated with reduced adult earnings potential. ENVIRONMENTAL RESEARCH 2023:116391. [PMID: 37308068 DOI: 10.1016/j.envres.2023.116391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 05/27/2023] [Accepted: 06/09/2023] [Indexed: 06/14/2023]
Abstract
The societal costs of air pollution have historically been measured in terms of premature deaths (including the corresponding values of statistical lives lost), disability-adjusted life years, and medical costs. Emerging research, however, demonstrated potential impacts of air pollution on human capital formation. Extended contact with pollutants such as airborne particulate matter among young persons whose biological systems are still developing can result in pulmonary, neurobehavioral, and birth complications, hindering academic performance as well as skills and knowledge acquisition. Using a dataset that tracks 2014-2015 incomes for 96.2% of Americans born between 1979 and 1983, we assessed the association between childhood exposure to fine particulate matter (PM2.5) and adult earnings outcomes across U.S. Census tracts. After accounting for pertinent economic covariates and regional random effects, our regression models indicate that early-life exposure to PM2.5 is associated with lower predicted income percentiles by mid-adulthood; all else equal, children raised in high pollution tracts (at the 75th percentile of PM2.5) are estimated to have approximately a 0.51 decrease in income percentile relative to children raised in low pollution tracts (at the 25th percentile of PM2.5). For a person earning the median income, this difference corresponds to a $436 lower annual income (in 2015 USD). We estimate that 2014-2015 earnings for the 1978-1983 birth cohort would have been ∼$7.18 billion higher had their childhood exposure met U.S. air quality standards for PM2.5. Stratified models show that the relationship between PM2.5 and diminished earnings is more pronounced for low-income children and for children living in rural environments. These findings raise concerns about long-term environmental and economic justice for children living in areas with poor air quality where air pollution could act as a barrier to intergenerational class equity.
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Affiliation(s)
- Lucien Swetschinski
- Yale School of the Environment, Yale University, 195 Prospect Street, New Haven, CT, 06511, USA.
| | - Kelvin C Fong
- Department of Earth and Environmental Sciences, Dalhousie University, Halifax, Nova Scotia, Canada.
| | - Rachel Morello-Frosch
- Department of Environmental Science, Policy, and Management, University of California-Berkeley, Berkeley, CA, USA; School of Public Health, University of California-Berkeley, Berkeley, CA, USA.
| | - Julian D Marshall
- Department of Civil and Environmental Engineering, University of Washington, Seattle, WA, USA.
| | - Michelle L Bell
- Yale School of the Environment, Yale University, 195 Prospect Street, New Haven, CT, 06511, USA.
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Yang L, Hong S, Mu H, Zhou J, He C, Wu Q, Gong X. Ozone exposure and health risks of different age structures in major urban agglomerations in People's Republic of China from 2013 to 2018. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:42152-42164. [PMID: 36645592 DOI: 10.1007/s11356-022-24809-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 12/13/2022] [Indexed: 06/17/2023]
Abstract
High concentration of surface ozone (O3) will cause health risks to people. In order to analyze the spatiotemporal characteristics of O3 and assess O3 exposure and health risks for different age groups in China, we applied multiple methods including standard deviation ellipse, spatial autocorrelation, and exposure-response functions. Results show that O3 concentrations increased in 64.5% of areas in China from 2013 to 2018. The central plain urban agglomeration (CPU), Beijing-Tianjin-Hebei (BTH), and Yangtze River Delta (YRD) witnessed the greatest incremental rates of O3 by 16.7%, 14.3%, and 13.1%. Spatially, the trend of O3 shows a significant positive autocorrelation, and high trend values primarily in central and east China. The proportion of the total population exposed to high O3 (above 160 μg/m3) increased annually. Compared to 2013, the proportion of the young, adult, and old populations exposed to high O3 increased to different extents in 2018 by 26.8%, 29.6%, and 27.2%, respectively. The extent of population exposure risk areas in China expanded in size, particularly in north and east China. The total premature respiratory mortalities attributable to long-term O3 exposure in six urban agglomerations were about 177,000 in 2018 which has increased by 16.4% compared to that in 2013. Among different age groups, old people are more vulnerable to O3 pollution, so we need to strengthen their relevant health protection of them.
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Affiliation(s)
- Lu Yang
- School of Resource and Environmental Science, Wuhan University, Wuhan, 430079, Hubei, China
| | - Song Hong
- School of Resource and Environmental Science, Wuhan University, Wuhan, 430079, Hubei, China.
| | - Hang Mu
- School of Resource and Environmental Science, Wuhan University, Wuhan, 430079, Hubei, China
| | - Jingwei Zhou
- Wageningen Institute for Environment and Climate Research, Wageningen University & Research, 6700 HB, Wageningen, Gelderland, Netherlands
| | - Chao He
- College of Resources and Environment, Yangtze University, Wuhan, 430100, China
| | - Qian Wu
- School of Resource and Environmental Science, Wuhan University, Wuhan, 430079, Hubei, China
| | - Xi Gong
- School of Low Carbon Economics, Hubei University of Economics, Wuhan, 430205, China
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Guo Q, He Z, Wang Z. Change in Air Quality during 2014-2021 in Jinan City in China and Its Influencing Factors. TOXICS 2023; 11:210. [PMID: 36976975 PMCID: PMC10056825 DOI: 10.3390/toxics11030210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 02/21/2023] [Accepted: 02/22/2023] [Indexed: 06/18/2023]
Abstract
Air pollution affects climate change, food production, traffic safety, and human health. In this paper, we analyze the changes in air quality index (AQI) and concentrations of six air pollutants in Jinan during 2014-2021. The results indicate that the annual average concentrations of PM10, PM2.5, NO2, SO2, CO, and O3 and AQI values all declined year after year during 2014-2021. Compared with 2014, AQI in Jinan City fell by 27.3% in 2021. Air quality in the four seasons of 2021 was obviously better than that in 2014. PM2.5 concentration was the highest in winter and PM2.5 concentration was the lowest in summer, while it was the opposite for O3 concentration. AQI in Jinan during the COVID epoch in 2020 was remarkably lower compared with that during the same epoch in 2021. Nevertheless, air quality during the post-COVID epoch in 2020 conspicuously deteriorated compared with that in 2021. Socioeconomic elements were the main reasons for the changes in air quality. AQI in Jinan was majorly influenced by energy consumption per 10,000-yuan GDP (ECPGDP), SO2 emissions (SDE), NOx emissions (NOE), particulate emissions (PE), PM2.5, and PM10. Clean policies in Jinan City played a key role in improving air quality. Unfavorable meteorological conditions led to heavy pollution weather in the winter. These results could provide a scientific reference for the control of air pollution in Jinan City.
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Affiliation(s)
- Qingchun Guo
- School of Geography and Environment, Liaocheng University, Liaocheng 252000, China
- Institute of Huanghe Studies, Liaocheng University, Liaocheng 252000, China
- State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710061, China
| | - Zhenfang He
- School of Geography and Environment, Liaocheng University, Liaocheng 252000, China
- Institute of Huanghe Studies, Liaocheng University, Liaocheng 252000, China
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Zhaosheng Wang
- National Ecosystem Science Data Center, Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
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Tong M, Li P, Wang M, Sun Y, Han Y, Liu H, Li J, Li J, Wu F, Guan T, Xue T. Time-varying association between fetal death and gestational exposure to ambient fine particles: a nationwide epidemiological study of 49 million fetuses in the contiguous US from 1989 to 2004. Int J Epidemiol 2022; 51:1984-1999. [PMID: 35586940 DOI: 10.1093/ije/dyac103] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 04/27/2022] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Gestational exposure to fine particulate matter (PM2.5) has been reported to be associated with an increased risk of fetal death in recent studies, but earlier studies in the past century have usually reported a non-significant association. As such, it remains unknown whether this adverse effect of PM2.5 exposure varies with time. METHODS Nearly 49.2 million eligible birth and fetal death records from 1989 to 2004 were selected from the United States (US) birth and fetal death certificate datasets. For each record, the level of prenatal exposure to PM2.5 was taken as the average concentration in the mother's residential county during the entire gestational period, according to well-established estimates of monthly levels across the contiguous US. We first stratified the dataset by the month of the last menstrual period (LMP) and then independently evaluated the nationwide association between PM2.5 exposure and fetal death within each stratum using five typical logit models: unadjusted, covariate-adjusted, propensity-score, double robust, and diagnostic-score models. Finally, we conducted a meta-analysis to pool estimated LMP-specific associations and explored how the overall association varied by LMP month. RESULTS Different models showed temporal heterogeneity in the estimated association between PM2.5 exposure and fetal death. According to the meta-analysis, double robust model estimates were more homogeneous than the rest, and thus the model outcome was recognized as the main result. For each 1-µg/m3 increase in prenatal exposure to PM2.5, the pooled odds ratio (OR) of fetal death was estimated to be 1.08 [95% confidence interval (CI): 1.05, 1.10]. The LMP-specific ORs exhibited a slightly increasing trend and a significant seasonal pattern. Compared with the pooled OR among samples with the LMP in spring, the estimates for summer, fall and winter were higher by 11.1% (95% CI: 6.2%, 16.3%), 27.8% (95% CI: 22.1%, 33.8%) and 28.8% (95% CI: 23.7%, 34.1%), respectively. We also found that temporal patterns in the association between PM2.5 exposure and fetal death could be explained by several population-level indicators or modifiers (i.e. ethnicity, maternal age, gestational weight gain, previous pregnancy of abnormal termination and diabetes). CONCLUSIONS Prenatal exposure to PM2.5 can increase the risk of fetal death. The effects of PM2.5 exposure may be modified by complex factors, which leads to a time-varying association.
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Affiliation(s)
- Mingkun Tong
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health and Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - Pengfei Li
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health and Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China.,Advanced Institute of Information Technology, Peking University, Beijing, China
| | - Meng Wang
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo, Buffalo, NY, USA
| | - Yilun Sun
- Department of Population and Quantitative Health Sciences, School of Medicine, Case Western Reserve University, Cleveland, OH, USA
| | - Yiqun Han
- Environmental Research Group, MRC Centre for Environment and Health, Imperial College London, London, UK
| | - Hengyi Liu
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health and Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - Jiajianghui Li
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health and Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - Jiwei Li
- Department of Computer Science and Technology, Zhejiang University, Hangzhou, China
| | - Fei Wu
- Department of Computer Science and Technology, Zhejiang University, Hangzhou, China
| | - Tianjia Guan
- Department of Health Policy, School of Health Policy and Management, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Tao Xue
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health and Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
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21
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Motairek I, Chen Z, Makhlouf MH, Rajagopalan S, Al-Kindi S. Historical Neighborhood Redlining and Contemporary Environmental Racism. LOCAL ENVIRONMENT 2022; 28:518-528. [PMID: 37588138 PMCID: PMC10427113 DOI: 10.1080/13549839.2022.2155942] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 11/13/2022] [Indexed: 08/18/2023]
Abstract
To stabilize the housing market during the great depression, the government-sanctioned Home Owners' Loan Corporation (HOLC) created color coded maps of nearly 200 United States cities according to lending risk. These maps were largely driven by racial segregation, with the worst graded neighborhoods colored in red, later termed redlined neighborhoods. We sought to investigate the association between historical redlining, and trends in environmental disparities across the US over the past few decades. We characterized environmental exposures including air pollutants (e.g., NO2 and fine particulate matter), vegetation, noise, and light at night, proximity hazardous emission sources (e.g., hazardous water facilities, wastewater discharge indicator) and other environmental and social indicators harnessed from various sources across HOLC graded neighborhoods and extrapolated census tracts (A [lowest risk neighborhoods] to D [highest risk neighborhoods]). Lower graded areas (C and D) had consistently higher exposures to worse environmental factors. Additionally, there were consistent relative disparities in the exposures to PM2.5 (1981-2018) and NO2 (2005-2019), without significant improvement in the gap compared with HOLC grade A neighborhoods. Our findings illustrate that historical redlining, a form of residential segregation largely based on racial discrimination is associated with environmental injustice over the past 2-4 decades.
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Affiliation(s)
- Issam Motairek
- Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, OH
| | - Zhuo Chen
- Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, OH
| | - Mohamed H.E. Makhlouf
- Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, OH
| | - Sanjay Rajagopalan
- Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, OH
- School of Medicine, Case Western Reserve University, Cleveland, OH
| | - Sadeer Al-Kindi
- Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, OH
- School of Medicine, Case Western Reserve University, Cleveland, OH
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22
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Cheng I, Yang J, Tseng C, Wu J, Shariff-Marco S, Park SSL, Conroy SM, Inamdar PP, Fruin S, Larson T, Setiawan VW, DeRouen MC, Gomez SL, Wilkens LR, Le Marchand L, Stram DO, Samet J, Ritz B, Wu AH. Traffic-related Air Pollution and Lung Cancer Incidence: The California Multiethnic Cohort Study. Am J Respir Crit Care Med 2022; 206:1008-1018. [PMID: 35649154 PMCID: PMC9801994 DOI: 10.1164/rccm.202107-1770oc] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 05/31/2022] [Indexed: 01/07/2023] Open
Abstract
Rationale: Although the contribution of air pollution to lung cancer risk is well characterized, few studies have been conducted in racially, ethnically, and socioeconomically diverse populations. Objectives: To examine the association between traffic-related air pollution and risk of lung cancer in a racially, ethnically, and socioeconomically diverse cohort. Methods: Among 97,288 California participants of the Multiethnic Cohort Study, we used Cox proportional hazards regression to examine associations between time-varying traffic-related air pollutants (gaseous and particulate matter pollutants and regional benzene) and lung cancer risk (n = 2,796 cases; average follow-up = 17 yr), adjusting for demographics, lifetime smoking, occupation, neighborhood socioeconomic status (nSES), and lifestyle factors. Subgroup analyses were conducted for race, ethnicity, nSES, and other factors. Measurements and Main Results: Among all participants, lung cancer risk was positively associated with nitrogen oxide (hazard ratio [HR], 1.15 per 50 ppb; 95% confidence interval [CI], 0.99-1.33), nitrogen dioxide (HR, 1.12 per 20 ppb; 95% CI, 0.95-1.32), fine particulate matter with aerodynamic diameter <2.5 μm (HR, 1.20 per 10 μg/m3; 95% CI, 1.01-1.43), carbon monoxide (HR, 1.29 per 1,000 ppb; 95% CI, 0.99-1.67), and regional benzene (HR, 1.17 per 1 ppb; 95% CI, 1.02-1.34) exposures. These patterns of associations were driven by associations among African American and Latino American groups. There was no formal evidence for heterogeneity of effects by nSES (P heterogeneity > 0.21), although participants residing in low-SES neighborhoods had increased lung cancer risk associated with nitrogen oxides, and no association was observed among those in high-SES neighborhoods. Conclusions: These findings in a large multiethnic population reflect an association between lung cancer and the mixture of traffic-related air pollution and not a particular individual pollutant. They are consistent with the adverse effects of air pollution that have been described in less racially, ethnically, and socioeconomically diverse populations. Our results also suggest an increased risk of lung cancer among those residing in low-SES neighborhoods.
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Affiliation(s)
- Iona Cheng
- Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, California
- University of California, San Francisco Helen Diller Family Comprehensive Cancer Center, San Francisco, California
| | - Juan Yang
- Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, California
| | - Chiuchen Tseng
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Jun Wu
- Department of Environmental and Occupational Health, Program in Public Health, Susan and Henry Samueli College of Health Sciences, University of California, Irvine, Irvine, California
| | - Salma Shariff-Marco
- Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, California
- University of California, San Francisco Helen Diller Family Comprehensive Cancer Center, San Francisco, California
| | - Sung-shim Lani Park
- Population Sciences in the Pacific Program (Cancer Epidemiology), University of Hawaii Cancer Center, Honolulu, Hawaii
| | - Shannon M. Conroy
- Department of Public Health Sciences, School of Medicine, University of California, Davis, Davis, California
| | - Pushkar P. Inamdar
- Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, California
| | - Scott Fruin
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Timothy Larson
- Department of Civil and Environmental Engineering, University of Washington, Seattle, Washington
| | - Veronica W. Setiawan
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Mindy C. DeRouen
- Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, California
- University of California, San Francisco Helen Diller Family Comprehensive Cancer Center, San Francisco, California
| | - Scarlett Lin Gomez
- Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, California
- University of California, San Francisco Helen Diller Family Comprehensive Cancer Center, San Francisco, California
| | - Lynne R. Wilkens
- Population Sciences in the Pacific Program (Cancer Epidemiology), University of Hawaii Cancer Center, Honolulu, Hawaii
| | - Loïc Le Marchand
- Population Sciences in the Pacific Program (Cancer Epidemiology), University of Hawaii Cancer Center, Honolulu, Hawaii
| | - Daniel O. Stram
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Jonathan Samet
- Department of Epidemiology and
- Department of Environmental and Occupational Health, Colorado School of Public Health, Aurora, Colorado; and
| | - Beate Ritz
- Department of Epidemiology, School of Public Health, University of California, Los Angeles, Los Angeles, California
| | - Anna H. Wu
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California
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Weichenthal S, Pinault L, Christidis T, Burnett RT, Brook JR, Chu Y, Crouse DL, Erickson AC, Hystad P, Li C, Martin RV, Meng J, Pappin AJ, Tjepkema M, van Donkelaar A, Weagle CL, Brauer M. How low can you go? Air pollution affects mortality at very low levels. SCIENCE ADVANCES 2022; 8:eabo3381. [PMID: 36170354 PMCID: PMC9519036 DOI: 10.1126/sciadv.abo3381] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 08/11/2022] [Indexed: 05/29/2023]
Abstract
The World Health Organization (WHO) recently released new guidelines for outdoor fine particulate air pollution (PM2.5) recommending an annual average concentration of 5 μg/m3. Yet, our understanding of the concentration-response relationship between outdoor PM2.5 and mortality in this range of near-background concentrations remains incomplete. To address this uncertainty, we conducted a population-based cohort study of 7.1 million adults in one of the world's lowest exposure environments. Our findings reveal a supralinear concentration-response relationship between outdoor PM2.5 and mortality at very low (<5 μg/m3) concentrations. Our updated global concentration-response function incorporating this new information suggests an additional 1.5 million deaths globally attributable to outdoor PM2.5 annually compared to previous estimates. The global health benefits of meeting the new WHO guideline for outdoor PM2.5 are greater than previously assumed and indicate a need for continued reductions in outdoor air pollution around the world.
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Affiliation(s)
- Scott Weichenthal
- McGill University, Montreal, QC, Canada
- Health Canada, Ottawa, ON, Canada
| | | | | | - Richard T. Burnett
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
| | | | - Yen Chu
- University of British Columbia, Vancouver, BC, Canada
| | | | | | | | - Chi Li
- Dalhousie University, Halifax, NS, Canada
| | - Randall V. Martin
- Dalhousie University, Halifax, NS, Canada
- Washington University, Saint Louis, WA, USA
| | - Jun Meng
- Washington University, Saint Louis, WA, USA
- Air Quality Research Division, Environment and Climate Change Canada, Toronto, ON, Canada
| | | | | | - Aaron van Donkelaar
- Dalhousie University, Halifax, NS, Canada
- Washington University, Saint Louis, WA, USA
| | | | - Michael Brauer
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
- University of British Columbia, Vancouver, BC, Canada
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24
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Nicholas CP. Commentary on Earth Day and the Relationship to Historical Developments in Air Pollution Control and Scientific Next Steps. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c01094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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25
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Olaniyan T, Pinault L, Li C, van Donkelaar A, Meng J, Martin RV, Hystad P, Robichaud A, Ménard R, Tjepkema M, Bai L, Kwong JC, Lavigne E, Burnett RT, Chen H. Ambient air pollution and the risk of acute myocardial infarction and stroke: A national cohort study. ENVIRONMENTAL RESEARCH 2022; 204:111975. [PMID: 34478722 DOI: 10.1016/j.envres.2021.111975] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 07/27/2021] [Accepted: 08/24/2021] [Indexed: 05/07/2023]
Abstract
We used a large national cohort in Canada to assess the incidence of acute myocardial infarction (AMI) and stroke hospitalizations in association with long-term exposure to fine particulate matter (PM2.5), nitrogen dioxide (NO2), and ozone (O3). The study population comprised 2.7 million respondents from the 2006 Canadian Census Health and Environment Cohort (CanCHEC), followed for incident hospitalizations of AMI or stroke between 2006 and 2016. We estimated 10-year moving average estimates of PM2.5, NO2, and O3, annually. We used Cox proportional hazards models to examine the associations adjusting for various covariates. For AMI, each interquartile range (IQR) increase in exposure was found to be associated with a hazard ratio of 1.026 (95% CI: 1.007-1.046) for PM2.5, 1.025 (95% CI: 1.001-1.050) for NO2, and 1.062 (95% CI: 1.041-1.084) for O3, respectively. Similarly, for stroke, an IQR increase in exposure was associated with a hazard ratio of 1.078 (95% CI: 1.052-1.105) for PM2.5, 0.995 (95% CI: 0.965-1.030) for NO2, and 1.055 (95% CI: 1.028-1.082) for O3, respectively. We found consistent evidence of positive associations between long-term exposures to PM2.5, and O3, and to a lesser degree NO2, with incident AMI and stroke hospitalizations.
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Affiliation(s)
- Toyib Olaniyan
- Health Analysis Division, Statistics Canada, 100 Tunney's Pasture Driveway, Ottawa, Ontario, K1A 0T6, Canada.
| | - Lauren Pinault
- Health Analysis Division, Statistics Canada, 100 Tunney's Pasture Driveway, Ottawa, Ontario, K1A 0T6, Canada.
| | - Chi Li
- Department of Chemistry, University of California, Berkeley, CA, 94720, United States.
| | - Aaron van Donkelaar
- Department of Physics and Atmospheric Science, Dalhousie University, Halifax, Nova Scotia, B3H 3J5, Canada; Department of Energy, Environment & Chemical Engineering, Washington University in St Louis, St Louis, MO, 63130, United States.
| | - Jun Meng
- Department of Physics and Atmospheric Science, Dalhousie University, Halifax, Nova Scotia, B3H 3J5, Canada.
| | - Randall V Martin
- Department of Physics and Atmospheric Science, Dalhousie University, Halifax, Nova Scotia, B3H 3J5, Canada; Department of Energy, Environment & Chemical Engineering, Washington University in St Louis, St Louis, MO, 63130, United States.
| | - Perry Hystad
- School of Biological & Population Health Sciences, College of Public Health and Human Sciences, Oregon State University, Corvallis, OR, 97331, United States.
| | - Alain Robichaud
- Air Quality Research Division, Environment and Climate Change Canada, Dorval, Québec, H9P 1J3, Canada.
| | - Richard Ménard
- Air Quality Research Division, Environment and Climate Change Canada, Dorval, Québec, H9P 1J3, Canada.
| | - Michael Tjepkema
- Health Analysis Division, Statistics Canada, 100 Tunney's Pasture Driveway, Ottawa, Ontario, K1A 0T6, Canada.
| | - Li Bai
- ICES, Toronto, Ontario, M4N 3M5, Canada.
| | - Jeffrey C Kwong
- ICES, Toronto, Ontario, M4N 3M5, Canada; Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, M5T 3M7, Canada; Public Health Ontario, Toronto, Ontario, M5G 1V5, Canada.
| | - Eric Lavigne
- Air Health Science Division, Health Canada, Ottawa, Ontario, K1A 0L4, Canada; School of Epidemiology & Public Health, University of Ottawa, Ottawa, Ontario, K1N 6N5, Canada.
| | - Richard T Burnett
- Institute of Health Metrics & Evaluation, University of Washington, Seattle, WA, 98121, United States; Population Studies Division, Environmental Health and Research Bureau, Health Canada, Ottawa, Ontario K1A 0T6, Canada.
| | - Hong Chen
- ICES, Toronto, Ontario, M4N 3M5, Canada; Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, M5T 3M7, Canada; Public Health Ontario, Toronto, Ontario, M5G 1V5, Canada; Population Studies Division, Environmental Health and Research Bureau, Health Canada, Ottawa, Ontario K1A 0T6, Canada.
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Rudolph JE, Cole SR, Edwards JK, Whitsel EA, Serre ML, Richardson DB. Estimating Associations Between Annual Concentrations of Particulate Matter and Mortality in the United States, Using Data Linkage and Bayesian Maximum Entropy. Epidemiology 2022; 33:157-166. [PMID: 34816807 PMCID: PMC8810699 DOI: 10.1097/ede.0000000000001447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Exposure to fine particulate matter (PM2.5) is an established risk factor for human mortality. However, previous US studies have been limited to select cities or regions or to population subsets (e.g., older adults). METHODS Here, we demonstrate how to use the novel geostatistical method Bayesian maximum entropy to obtain estimates of PM2.5 concentrations in all contiguous US counties, 2000-2016. We then demonstrate how one could use these estimates in a traditional epidemiologic analysis examining the association between PM2.5 and rates of all-cause, cardiovascular, respiratory, and (as a negative control outcome) accidental mortality. RESULTS We estimated that, for a 1 log(μg/m3) increase in PM2.5 concentration, the conditional all-cause mortality incidence rate ratio (IRR) was 1.029 (95% confidence interval [CI]: 1.006, 1.053). This implies that the rate of all-cause mortality at 10 µg/m3 would be 1.020 times the rate at 5 µg/m3. IRRs were larger for cardiovascular mortality than for all-cause mortality in all gender and race-ethnicity groups. We observed larger IRRs for all-cause, nonaccidental, and respiratory mortality in Black non-Hispanic Americans than White non-Hispanic Americans. However, our negative control analysis indicated the possibility for unmeasured confounding. CONCLUSION We used a novel method that allowed us to estimate PM2.5 concentrations in all contiguous US counties and obtained estimates of the association between PM2.5 and mortality comparable to previous studies. Our analysis provides one example of how Bayesian maximum entropy could be used in epidemiologic analyses; future work could explore other ways to use this approach to inform important public health questions.
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Affiliation(s)
| | - Stephen R. Cole
- Department of Epidemiology, University of North Carolina at Chapel Hill
| | - Jessie K. Edwards
- Department of Epidemiology, University of North Carolina at Chapel Hill
| | - Eric A. Whitsel
- Department of Epidemiology, University of North Carolina at Chapel Hill
- Department of Medicine, University of North Carolina at Chapel Hill
| | - Marc L. Serre
- Department of Environmental Sciences and Engineering, University of North Carolina at Chapel Hill
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Sun Y, Li X, Benmarhnia T, Chen JC, Avila C, Sacks DA, Chiu V, Slezak J, Molitor J, Getahun D, Wu J. Exposure to air pollutant mixture and gestational diabetes mellitus in Southern California: Results from electronic health record data of a large pregnancy cohort. ENVIRONMENT INTERNATIONAL 2022; 158:106888. [PMID: 34563749 PMCID: PMC9022440 DOI: 10.1016/j.envint.2021.106888] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 09/07/2021] [Accepted: 09/17/2021] [Indexed: 05/14/2023]
Abstract
BACKGROUND Epidemiological findings are inconsistent regarding the associations between air pollution exposure during pregnancy and gestational diabetes mellitus (GDM). Several limitations exist in previous studies, including potential outcome and exposure misclassification, unassessed confounding, and lack of simultaneous consideration of air pollution mixtures and particulate matter (PM) constituents. OBJECTIVES To assess the association between GDM and maternal residential exposure to air pollution, and the joint effect of the mixture of air pollutants and PM constituents. METHODS Detailed clinical data were obtained for 395,927 pregnancies in southern California (2008-2018) from Kaiser Permanente Southern California (KPSC) electronic health records. GDM diagnosis was based on KPSC laboratory tests. Monthly average concentrations of fine particulate matter < 2.5 μm (PM2.5), <10 μm (PM10), nitrogen dioxide (NO2), and ozone (O3) were estimated using kriging interpolation of Environmental Protection Agency's routine monitoring station data, while PM2.5 constituents (i.e., sulfate, nitrate, ammonium, organic matter and black carbon) were estimated using a fine-resolution geoscience-derived model. A multilevel logistic regression was used to fit single-pollutant models; quantile g-computation approach was applied to estimate the joint effect of air pollution and PM component mixtures. Main analyses adjusted for maternal age, race/ethnicity, education, median family household income, pre-pregnancy BMI, smoking during pregnancy, insurance type, season of conception and year of delivery. RESULTS The incidence of GDM was 10.9% in the study population. In single-pollutant models, we observed an increased odds for GDM associated with exposures to PM2.5, PM10, NO2 and PM2.5 constituents. The association was strongest for NO2 [adjusted odds ratio (OR) per interquartile range: 1.176, 95% confidence interval (CI): 1.147-1.205)]. In multi-pollutant models, increased ORs for GDM in association with one quartile increase in air pollution mixtures were found for both kriging-based regional air pollutants (NO2, PM2.5, and PM10, OR = 1.095, 95% CI: 1.082-1.108) and PM2.5 constituents (i.e., sulfate, nitrate, ammonium, organic matter and black carbon, OR = 1.258, 95% CI: 1.206-1.314); NO2 (78%) and black carbon (48%) contributed the most to the overall mixture effects among all krigged air pollutants and all PM2.5 constituents, respectively. The risk of GDM associated with air pollution exposure were significantly higher among Hispanic mothers, and overweight/obese mothers. CONCLUSION This study found that exposure to a mixture of ambient PM2.5, PM10, NO2, and PM2.5 chemical constituents was associated with an increased risk of GDM. NO2 and black carbon PM2.5 contributed most to GDM risk.
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Affiliation(s)
- Yi Sun
- Department of Environmental and Occupational Health, Program in Public Health, University of California, Irvine, CA, USA
| | - Xia Li
- Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, CA, USA
| | - Tarik Benmarhnia
- Herbert Wertheim School of Public Health and Scripps Institution of Oceanography, University of California, San Diego, 9500 Gilman Drive #0725, CA La Jolla 92093, USA
| | - Jiu-Chiuan Chen
- Department of Preventive Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Chantal Avila
- Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, CA, USA
| | - David A Sacks
- Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, CA, USA; Department of Obstetrics and Gynecology, University of Southern California, Keck School of Medicine, Los Angeles, CA, USA
| | - Vicki Chiu
- Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, CA, USA
| | - Jeff Slezak
- Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, CA, USA
| | - John Molitor
- College of Public Health and Human Sciences, Oregon State University, Corvallis, OR 97331, USA
| | - Darios Getahun
- Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, CA, USA; Department of Health Systems Science, Kaiser Permanente Bernard J. Tyson School of Medicine, Pasadena, CA, USA.
| | - Jun Wu
- Department of Environmental and Occupational Health, Program in Public Health, University of California, Irvine, CA, USA.
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Jbaily A, Zhou X, Liu J, Lee TH, Kamareddine L, Verguet S, Dominici F. Air pollution exposure disparities across US population and income groups. Nature 2022; 601:228-233. [PMID: 35022594 PMCID: PMC10516300 DOI: 10.1038/s41586-021-04190-y] [Citation(s) in RCA: 153] [Impact Index Per Article: 76.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 10/26/2021] [Indexed: 11/09/2022]
Abstract
Air pollution contributes to the global burden of disease, with ambient exposure to fine particulate matter of diameters smaller than 2.5 μm (PM2.5) being identified as the fifth-ranking risk factor for mortality globally1. Racial/ethnic minorities and lower-income groups in the USA are at a higher risk of death from exposure to PM2.5 than are other population/income groups2-5. Moreover, disparities in exposure to air pollution among population and income groups are known to exist6-17. Here we develop a data platform that links demographic data (from the US Census Bureau and American Community Survey) and PM2.5 data18 across the USA. We analyse the data at the tabulation area level of US zip codes (N is approximately 32,000) between 2000 and 2016. We show that areas with higher-than-average white and Native American populations have been consistently exposed to average PM2.5 levels that are lower than areas with higher-than-average Black, Asian and Hispanic or Latino populations. Moreover, areas with low-income populations have been consistently exposed to higher average PM2.5 levels than areas with high-income groups for the years 2004-2016. Furthermore, disparities in exposure relative to safety standards set by the US Environmental Protection Agency19 and the World Health Organization20 have been increasing over time. Our findings suggest that more-targeted PM2.5 reductions are necessary to provide all people with a similar degree of protection from environmental hazards. Our study is observational and cannot provide insight into the drivers of the identified disparities.
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Affiliation(s)
- Abdulrahman Jbaily
- Department of Global Health and Population, Harvard T. H. Chan School of Public Health, Boston, MA, USA.
| | - Xiaodan Zhou
- Environmental Systems Research Institute, Redlands, CA, USA
| | - Jie Liu
- Environmental Systems Research Institute, Redlands, CA, USA
| | - Ting-Hwan Lee
- Environmental Systems Research Institute, Redlands, CA, USA
| | - Leila Kamareddine
- Department of Biostatistics, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Stéphane Verguet
- Department of Global Health and Population, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Francesca Dominici
- Department of Biostatistics, Harvard T. H. Chan School of Public Health, Boston, MA, USA.
- Harvard Data Science Initiative, Cambridge, MA, USA.
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Zhao N, Pinault L, Toyib O, Vanos J, Tjepkema M, Cakmak S. Long-term ozone exposure and mortality from neurological diseases in Canada. ENVIRONMENT INTERNATIONAL 2021; 157:106817. [PMID: 34385046 DOI: 10.1016/j.envint.2021.106817] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 07/12/2021] [Accepted: 08/04/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND There is increasing interest in the health effects of air pollution. However, the relationships between ozone exposure and mortality attributable to neurological diseases remain unclear. OBJECTIVES To assess associations of long-term exposure to ozone with death from Parkinson's disease, dementia, stroke, and multiple sclerosis. METHODS Our analyses were based on the 2001 Canadian Census Health and Environment Cohort. Census participants were linked with vital statistics records through 2016, resulting in a cohort of 3.5 million adults/51,045,700 person-years, with 8,500/51,300/43,300/1,300 deaths from Parkinson's/dementia/stroke/multiple sclerosis, respectively. Ten-year average ozone concentrations estimated by chemical transport models and adjusted by ground measurements were assigned to subjects based on postal codes. Cox proportional hazards models were used to calculate hazard ratios (HRs) for deaths from the four neurological diseases, adjusting for eight common demographic and socioeconomic factors, seven environmental indexes, and six contextual covariates. RESULTS The fully adjusted HRs for Parkinson's, dementia, stroke, and multiple sclerosis mortalities related to one interquartile range increase in ozone (10.1 ppb), were 1.09 (95% confidence interval 1.04-1.14), 1.08 (1.06-1.10), 1.06 (1.04-1.09), and 1.35 (1.20-1.51), respectively. The covariates did not influence significance of the ozone-mortality associations, except airshed (i.e., broad region of Canada). During the period of 2001-2016, 5.66%/5.01%/ 3.77%/19.11% of deaths from Parkinson's/dementia/stroke/multiple sclerosis, respectively, were attributable to ozone exposure. CONCLUSIONS We found positive associations between ozone exposure and mortality due to Parkinson's, dementia, stroke, and multiple sclerosis.
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Affiliation(s)
- Naizhuo Zhao
- Division of Clinical Epidemiology, McGill University Health Center, Montreal, QC, Canada
| | - Lauren Pinault
- Health Stataistics Division, Statistics Canada, Ottawa, ON, Canada
| | - Olaniyan Toyib
- Health Stataistics Division, Statistics Canada, Ottawa, ON, Canada
| | - Jennifer Vanos
- School of Sustainability, Arizona State University, AZ, USA
| | - Michael Tjepkema
- Health Stataistics Division, Statistics Canada, Ottawa, ON, Canada
| | - Sabit Cakmak
- Population Studies Division, Environmental Health Science & Research Bureau, Health Canada, Ottawa, ON, Canada.
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Kirwa K, Szpiro AA, Sheppard L, Sampson PD, Wang M, Keller JP, Young MT, Kim SY, Larson TV, Kaufman JD. Fine-Scale Air Pollution Models for Epidemiologic Research: Insights From Approaches Developed in the Multi-ethnic Study of Atherosclerosis and Air Pollution (MESA Air). Curr Environ Health Rep 2021; 8:113-126. [PMID: 34086258 PMCID: PMC8278964 DOI: 10.1007/s40572-021-00310-y] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW Epidemiological studies of short- and long-term health impacts of ambient air pollutants require accurate exposure estimates. We describe the evolution in exposure assessment and assignment in air pollution epidemiology, with a focus on spatiotemporal techniques first developed to meet the needs of the Multi-ethnic Study of Atherosclerosis and Air Pollution (MESA Air). Initially designed to capture the substantial variation in pollutant levels and potential health impacts that can occur over small spatial and temporal scales in metropolitan areas, these methods have now matured to permit fine-scale exposure characterization across the contiguous USA and can be used for understanding long- and short-term health effects of exposure across the lifespan. For context, we highlight how the MESA Air models compare to other available exposure models. RECENT FINDINGS Newer model-based exposure assessment techniques provide predictions of pollutant concentrations with fine spatial and temporal resolution. These validated models can predict concentrations of several pollutants, including particulate matter less than 2.5 μm in diameter (PM2.5), oxides of nitrogen, and ozone, at specific locations (such as at residential addresses) over short time intervals (such as 2 weeks) across the contiguous USA between 1980 and the present. Advances in statistical methods, incorporation of supplemental pollutant monitoring campaigns, improved geographic information systems, and integration of more complete satellite and chemical transport model outputs have contributed to the increasing validity and refined spatiotemporal spans of available models. Modern models for predicting levels of outdoor concentrations of air pollutants can explain a substantial amount of the spatiotemporal variation in observations and are being used to provide critical insights into effects of air pollutants on the prevalence, incidence, progression, and prognosis of diseases across the lifespan. Additional enhancements in model inputs and model design, such as incorporation of better traffic data, novel monitoring platforms, and deployment of machine learning techniques, will allow even further improvements in the performance of pollutant prediction models.
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Affiliation(s)
- Kipruto Kirwa
- Department of Environmental and Occupational Health Sciences, University of Washington School of Public Health, Seattle, WA, USA.
| | - Adam A Szpiro
- Department of Biostatistics, University of Washington School of Public Health, Seattle, WA, USA
| | - Lianne Sheppard
- Departments of Biostatistics and Environmental and Occupational Health Sciences, University of Washington School of Public Health, Seattle, WA, USA
| | - Paul D Sampson
- Department of Statistics, University of Washington School of Public Health, Seattle, WA, USA
| | - Meng Wang
- Department of Environmental and Occupational Health Sciences, University of Washington School of Public Health, Seattle, WA, USA
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions Research and Education in Energy, Environment and Water Institute, University at Buffalo, Buffalo, NY, USA
| | - Joshua P Keller
- Department of Statistics, Colorado State University, Fort Collins, CO, USA
| | - Michael T Young
- Department of Environmental and Occupational Health Sciences, University of Washington School of Public Health, Seattle, WA, USA
| | - Sun-Young Kim
- Department of Environmental and Occupational Health Sciences, University of Washington School of Public Health, Seattle, WA, USA
- Institute of Health and Environment, Seoul National University, Seoul, South Korea
| | - Timothy V Larson
- Department of Civil and Environmental Engineering, University of Washington, Seattle, WA, USA
| | - Joel D Kaufman
- Departments of Environmental and Occupational Health Sciences, Epidemiology, and Medicine, University of Washington, Seattle, WA, USA
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Thomson EM, Christidis T, Pinault L, Tjepkema M, Colman I, Crouse DL, van Donkelaar A, Martin RV, Hystad P, Robichaud A, Ménard R, Brook JR, Burnett RT. Self-rated stress, distress, mental health, and health as modifiers of the association between long-term exposure to ambient pollutants and mortality. ENVIRONMENTAL RESEARCH 2020; 191:109973. [PMID: 32810502 DOI: 10.1016/j.envres.2020.109973] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 07/16/2020] [Accepted: 07/17/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Individual and neighbourhood-scale socioeconomic characteristics modify associations between exposure to air pollution and mortality. The role of stress, which may integrate effects of social and environmental exposures on health, is unknown. We examined whether an individual's perspective on their own well-being, as assessed using self-rated measures of stress and health, modifies the pollutant-mortality relationship. METHODS The Canadian Community Health Survey (CCHS)-mortality cohort includes respondents from surveys administered between 2001 and 2012 linked to vital statistics and postal codes from 1981 until 2016. Annual fine particulate matter (PM2.5), nitrogen dioxide (NO2), and ozone (O3) exposure estimates were attached to a sample of cohort members aged 30-89 years (n = 398,300 respondents/3,848,400 person-years). We examined whether self-rated stress, distress, mental health, and general health modified associations between long-term exposure to each pollutant (three-year moving average with one-year lag) and non-accidental mortality using Cox survival models, adjusted for individual- (i.e. socioeconomic and behavioural) and neighbourhood-scale covariates. RESULTS In fully-adjusted models, the relationship between exposure to pollutants and mortality was stronger among those with poor self-rated mental health, including a significant difference for NO2 (hazard ratio (HR) = 1.15, 95% CI 1.06-1.25 per IQR) compared to those with very good/excellent mental health (HR = 1.05, 95% CI 1.01-1.08; Cochran's Q = 4.01; p < 0.05). Poor self-rated health was similarly associated with higher pollutant-associated HRs, but only in unadjusted models. Stress and distress did not modify pollutant-mortality associations. CONCLUSIONS Poor self-rated mental and general health were associated with increased mortality attributed to exposure to ambient pollutants.
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Affiliation(s)
- Errol M Thomson
- Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, Canada; Department of Biochemistry, Microbiology and Immunology, University of Ottawa, ON, Canada.
| | | | - Lauren Pinault
- Health Analysis Division, Statistics Canada, Ottawa, ON, Canada
| | | | - Ian Colman
- School of Epidemiology and Public Health, University of Ottawa, Ottawa, ON, Canada
| | | | - Aaron van Donkelaar
- Department of Physics & Atmospheric Science, Dalhousie University, Halifax, NS, Canada; Department of Energy, Environmental & Chemical Engineering, Washington University in St. Louis, MO, USA
| | - Randall V Martin
- Department of Physics & Atmospheric Science, Dalhousie University, Halifax, NS, Canada; Department of Energy, Environmental & Chemical Engineering, Washington University in St. Louis, MO, USA; Harvard-Smithsonian Center for Astrophysics, Cambridge, MA, USA
| | - Perry Hystad
- College of Public Health and Human Sciences, Oregon State University, Corvallis, OR, USA
| | - Alain Robichaud
- Air Quality Research Division, Environment and Climate Change Canada, Dorval, QC, Canada
| | - Richard Ménard
- Air Quality Research Division, Environment and Climate Change Canada, Dorval, QC, Canada
| | - Jeffrey R Brook
- Dalla Lana School of Public Health, University of Toronto, ON, Canada
| | - Richard T Burnett
- Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, Canada
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Abstract
The summer of 2018 saw intense smoke impacts on the eastern side of the Sierra Nevada in California, which have been anecdotally ascribed to the closest wildfire, the Lions Fire. We examined the role of the Lions Fire and four other, simultaneous large wildfires on smoke impacts across the Eastern Sierra. Our approach combined GOES-16 satellite data with fire activity, fuel loading, and fuel type, to allocate emissions diurnally per hour for each fire. To apportion smoke impacts at key monitoring sites, dispersion was modeled via the BlueSky framework, and daily averaged PM2.5 concentrations were estimated from 23 July to 29 August 2018. To estimate the relative impact of each contributing wildfire at six Eastern Sierra monitoring sites, we layered the multiple modeled impacts, calculated their proportion from each fire and at each site, and used that proportion to apportion smoke from each fire’s monitored impact. The combined smoke concentration due to multiple large, concurrent, but more distant fires was on many days substantially higher than the concentration attributable to the Lions Fire, which was much closer to the air quality monitoring sites. These daily apportionments provide an objective basis for understanding the extent to which local versus regional fire affected Eastern Sierra Nevada air quality. The results corroborate previous case studies showing that slower-growing fires, when and where managed for resource objectives, can create more transient and manageable air quality impacts relative to larger fires where such management strategies are not used or feasible.
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Yang T, Jiang L, Han Y, Liu J, Wang X, Yan X, Liu J. Linking aerosol characteristics of size distributions, core potential pathogens and toxic metal(loid)s to wastewater treatment process. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 264:114741. [PMID: 32402711 DOI: 10.1016/j.envpol.2020.114741] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 04/27/2020] [Accepted: 05/03/2020] [Indexed: 06/11/2023]
Abstract
Wastewater treatment plants (WWTPs) play important roles in water purification but are also important source of aerosols. However, the relationship between aerosol characteristics and wastewater treatment process remains poorly understood. In this study, aerosols were collected over a 24-month period from a WWTP using a modified anaerobic-anoxic-oxic process. The aerated tank (AerT) was characterized by the highest respiratory fraction (RF) concentrations (861-1525 CFU/m3) and proportions (50.76%-65.96%) of aerosol particles. Fourteen core potential pathogens and 15 toxic metal(loid)s were identified in aerosols. Mycobacterium was the genus that aerosolized most easily in fine grid, pre-anoxic tank, and AerT. High wastewater treatment efficiency may increase the emission of RF and core potential pathogens. The median size of activated sludge, richness of core potential pathogens in wastewater, and total suspended particulates were the most influential factors directly related to the RF proportions, core community of potential pathogens, and composition of toxic metal(loid)s in WWTP aerosols, respectively. Relative humidity, temperature, input and removal of biochemical oxygen demand, dissolved oxygen, and mixed liquor suspended solids could also directly or indirectly affect the aerosol characteristics. This study enhances the mechanistic understanding of linking aerosol characteristics to treatment processes and has important implications for targeted manipulation.
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Affiliation(s)
- Tang Yang
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, PR China; University of Chinese Academy of Sciences, Beijing, 101408, PR China.
| | - Lu Jiang
- College of Oceanic and Atmospheric Sciences, Ocean University of China, Qingdao, 266100, PR China.
| | - Yunping Han
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, PR China; University of Chinese Academy of Sciences, Beijing, 101408, PR China.
| | - Jianwei Liu
- School of Environment and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing, 100044, PR China.
| | - Xiaodong Wang
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, 266033, PR China.
| | - Xu Yan
- School of Environment, Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, Henan Normal University, Xinxiang, Henan, 453007, PR China.
| | - Junxin Liu
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, PR China; University of Chinese Academy of Sciences, Beijing, 101408, PR China.
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Abstract
The distribution of air pollution has changed little, perpetuating disparities in exposure
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Affiliation(s)
- Lala Ma
- Department of Economics, University of Kentucky, Lexington, KY, USA.
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Colmer J, Hardman I, Shimshack J, Voorheis J. Disparities in PM2.5 air pollution in the United States. Science 2020; 369:575-578. [DOI: 10.1126/science.aaz9353] [Citation(s) in RCA: 79] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Accepted: 06/09/2020] [Indexed: 11/02/2022]
Abstract
Air pollution at any given time is unequally distributed across locations. Average concentrations of fine particulate matter smaller than 2.5 micrometers in diameter (PM2.5) have fallen over time. However, we do not know how the spatial distribution of PM2.5 has evolved. Here, we provide early evidence. We combine 36 years of PM2.5 concentrations measured over ~8.6 million grid cells with geographic, economic, and demographic data from ~65,000 U.S. census tracts. We show that differences in PM2.5 between more and less polluted areas declined substantially between 1981 and 2016. However, the most polluted census tracts in 1981 remained the most polluted in 2016. The least polluted census tracts in 1981 remained the least polluted in 2016. The most exposed subpopulations in 1981 remained the most exposed in 2016. Overall, absolute disparities have fallen, but relative disparities persist.
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Affiliation(s)
- Jonathan Colmer
- Department of Economics, University of Virginia, Charlottesville, VA, USA
| | - Ian Hardman
- Program on Energy and Sustainable Development, Stanford University, Stanford, CA, USA
| | - Jay Shimshack
- Frank Batten School of Leadership and Public Policy, University of Virginia, Charlottesville, VA, USA
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Christidis T, Erickson AC, Pappin AJ, Crouse DL, Pinault LL, Weichenthal SA, Brook JR, van Donkelaar A, Hystad P, Martin RV, Tjepkema M, Burnett RT, Brauer M. Low concentrations of fine particle air pollution and mortality in the Canadian Community Health Survey cohort. Environ Health 2019; 18:84. [PMID: 31601202 PMCID: PMC6785886 DOI: 10.1186/s12940-019-0518-y] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 08/13/2019] [Indexed: 05/07/2023]
Abstract
BACKGROUND Approximately 2.9 million deaths are attributed to ambient fine particle air pollution around the world each year (PM2.5). In general, cohort studies of mortality and outdoor PM2.5 concentrations have limited information on individuals exposed to low levels of PM2.5 as well as covariates such as smoking behaviours, alcohol consumption, and diet which may confound relationships with mortality. This study provides an updated and extended analysis of the Canadian Community Health Survey-Mortality cohort: a population-based cohort with detailed PM2.5 exposure data and information on a number of important individual-level behavioural risk factors. We also used this rich dataset to provide insight into the shape of the concentration-response curve for mortality at low levels of PM2.5. METHODS Respondents to the Canadian Community Health Survey from 2000 to 2012 were linked by postal code history from 1981 to 2016 to high resolution PM2.5 exposure estimates, and mortality incidence to 2016. Cox proportional hazard models were used to estimate the relationship between non-accidental mortality and ambient PM2.5 concentrations (measured as a three-year average with a one-year lag) adjusted for socio-economic, behavioural, and time-varying contextual covariates. RESULTS In total, 50,700 deaths from non-accidental causes occurred in the cohort over the follow-up period. Annual average ambient PM2.5 concentrations were low (i.e. 5.9 μg/m3, s.d. 2.0) and each 10 μg/m3 increase in exposure was associated with an increase in non-accidental mortality (HR = 1.11; 95% CI 1.04-1.18). Adjustment for behavioural covariates did not materially change this relationship. We estimated a supra-linear concentration-response curve extending to concentrations below 2 μg/m3 using a shape constrained health impact function. Mortality risks associated with exposure to PM2.5 were increased for males, those under age 65, and non-immigrants. Hazard ratios for PM2.5 and mortality were attenuated when gaseous pollutants were included in models. CONCLUSIONS Outdoor PM2.5 concentrations were associated with non-accidental mortality and adjusting for individual-level behavioural covariates did not materially change this relationship. The concentration-response curve was supra-linear with increased mortality risks extending to low outdoor PM2.5 concentrations.
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Affiliation(s)
- Tanya Christidis
- Health Analysis Division, Statistics Canada, 100 Tunney’s Pasture Driveway, Ottawa, Ontario K1A 0T6 Canada
| | - Anders C. Erickson
- School of Population and Public Health, The University of British Columbia, 2206 East Mall, Vancouver, British Columbia V6T 1Z3 Canada
| | - Amanda J. Pappin
- Health Analysis Division, Statistics Canada, 100 Tunney’s Pasture Driveway, Ottawa, Ontario K1A 0T6 Canada
- Safe Environments Directorate, Health Canada, 269 Laurier Avenue West, Ottawa, Ontario K1A 0K9 Canada
| | - Daniel L. Crouse
- Department of Sociology, University of New Brunswick, PO Box 4400, Fredericton, New Brunswick E3B 5A3 Canada
| | - Lauren L. Pinault
- Health Analysis Division, Statistics Canada, 100 Tunney’s Pasture Driveway, Ottawa, Ontario K1A 0T6 Canada
| | - Scott A. Weichenthal
- Department of Epidemiology, Biostatistics & Occupational Health, McGill University, 1110 Pine Ave West, Montreal, Quebec H3A 1A3 Canada
- Air Health Science Division, Health Canada, 269 Laurier Avenue West, Ottawa, Ontario K1A 0K0 Canada
| | - Jeffrey R. Brook
- Dalla Lana School of Public Health, University of Toronto, 155 College Street, Toronto, Ontario M5T 1P8 Canada
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 223 College St., Toronto, ON M5T 1R4 Canada
| | - Aaron van Donkelaar
- Department of Physics and Atmospheric Science, Dalhousie University, 6310 Coburg Road, PO Box 15000, Halifax, NS B3H 4R2 Canada
- Department of Energy, Environmental & Chemical Engineering, Washington University in St. Louis, St. Louis, Missouri 63130 USA
| | - Perry Hystad
- College of Public Health and Human Sciences, Oregon State University, 2520 SW Campus Way, Corvallis, Oregon 97331 USA
| | - Randall V. Martin
- Department of Physics and Atmospheric Science, Dalhousie University, 6310 Coburg Road, PO Box 15000, Halifax, NS B3H 4R2 Canada
- Harvard-Smithsonian Center for Astrophysics, 60 Garden St, Cambridge, MA 02138 USA
- Department of Energy, Environmental & Chemical Engineering, Washington University in St. Louis, St. Louis, Missouri 63130 USA
| | - Michael Tjepkema
- Health Analysis Division, Statistics Canada, 100 Tunney’s Pasture Driveway, Ottawa, Ontario K1A 0T6 Canada
| | - Richard T. Burnett
- Population Studies Division, Health Canada, 50 Columbine Driveway, Ottawa, Ontario K1A 0K9 Canada
| | - Michael Brauer
- School of Population and Public Health, The University of British Columbia, 2206 East Mall, Vancouver, British Columbia V6T 1Z3 Canada
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Moreno-Cruz J. Understanding the industrial contribution to pollution offers opportunities to further improve air quality in the United States. Proc Natl Acad Sci U S A 2019; 116:19768-19770. [PMID: 31511418 PMCID: PMC6778223 DOI: 10.1073/pnas.1913999116] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Juan Moreno-Cruz
- School of Environment, Enterprise, and Development, University of Waterloo, Waterloo, ON N2L 3G1, Canada
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Pappin AJ, Christidis T, Pinault LL, Crouse DL, Brook JR, Erickson A, Hystad P, Li C, Martin RV, Meng J, Weichenthal S, van Donkelaar A, Tjepkema M, Brauer M, Burnett RT. Examining the Shape of the Association between Low Levels of Fine Particulate Matter and Mortality across Three Cycles of the Canadian Census Health and Environment Cohort. ENVIRONMENTAL HEALTH PERSPECTIVES 2019; 127:107008. [PMID: 31638837 PMCID: PMC6867181 DOI: 10.1289/ehp5204] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 09/18/2019] [Accepted: 09/18/2019] [Indexed: 05/19/2023]
Abstract
BACKGROUND Ambient fine particulate air pollution with aerodynamic diameter ≤ 2.5 μ m (PM 2.5 ) is an important contributor to the global burden of disease. Information on the shape of the concentration-response relationship at low concentrations is critical for estimating this burden, setting air quality standards, and in benefits assessments. OBJECTIVES We examined the concentration-response relationship between PM 2.5 and nonaccidental mortality in three Canadian Census Health and Environment Cohorts (CanCHECs) based on the 1991, 1996, and 2001 census cycles linked to mobility and mortality data. METHODS Census respondents were linked with death records through 2016, resulting in 8.5 million adults, 150 million years of follow-up, and 1.5 million deaths. Using annual mailing address, we assigned time-varying contextual variables and 3-y moving-average ambient PM 2.5 at a 1 × 1 km spatial resolution from 1988 to 2015. We ran Cox proportional hazards models for PM 2.5 adjusted for eight subject-level indicators of socioeconomic status, seven contextual covariates, ozone, nitrogen dioxide, and combined oxidative potential. We used three statistical methods to examine the shape of the concentration-response relationship between PM 2.5 and nonaccidental mortality. RESULTS The mean 3-y annual average estimate of PM 2.5 exposure ranged from 6.7 to 8.0 μ g / m 3 over the three cohorts. We estimated a hazard ratio (HR) of 1.053 [95% confidence interval (CI): 1.041, 1.065] per 10 - μ g / m 3 change in PM 2.5 after pooling the three cohort-specific hazard ratios, with some variation between cohorts (1.041 for the 1991 and 1996 cohorts and 1.084 for the 2001 cohort). We observed a supralinear association in all three cohorts. The lower bound of the 95% CIs exceeded unity for all concentrations in the 1991 cohort, for concentrations above 2 μ g / m 3 in the 1996 cohort, and above 5 μ g / m 3 in the 2001 cohort. DISCUSSION In a very large population-based cohort with up to 25 y of follow-up, PM 2.5 was associated with nonaccidental mortality at concentrations as low as 5 μ g / m 3 . https://doi.org/10.1289/EHP5204.
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Affiliation(s)
- Amanda J Pappin
- Health Analysis Division, Statistics Canada, Ottawa, Ontario, Canada
| | - Tanya Christidis
- Health Analysis Division, Statistics Canada, Ottawa, Ontario, Canada
| | - Lauren L Pinault
- Health Analysis Division, Statistics Canada, Ottawa, Ontario, Canada
| | - Dan L Crouse
- Department of Sociology, University of New Brunswick, Fredericton, New Brunswick, Canada
- New Brunswick Institute for Research, Data, and Training, Fredericton, New Brunswick, Canada
| | - Jeffrey R Brook
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Anders Erickson
- School of Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada
| | - Perry Hystad
- College of Public Health and Human Sciences, Oregon State University, Corvallis, Oregon, USA
| | - Chi Li
- Department of Physics and Atmospheric Science, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Randall V Martin
- Department of Physics and Atmospheric Science, Dalhousie University, Halifax, Nova Scotia, Canada
- Harvard-Smithsonian Center for Astrophysics, Cambridge, Massachusetts, USA
- Department of Energy, Environmental & Chemical Engineering, Washington University in St. Louis, St. Louis, Missouri, United States
| | - Jun Meng
- Department of Physics and Atmospheric Science, Dalhousie University, Halifax, Nova Scotia, Canada
- Department of Energy, Environmental & Chemical Engineering, Washington University in St. Louis, St. Louis, Missouri, United States
| | - Scott Weichenthal
- Department of Epidemiology, Biostatistics & Occupational Health, McGill University, Montreal, Quebec, Canada
- Air Health Science Division, Health Canada, Ottawa, Ontario, Canada
| | - Aaron van Donkelaar
- Department of Physics and Atmospheric Science, Dalhousie University, Halifax, Nova Scotia, Canada
- Department of Energy, Environmental & Chemical Engineering, Washington University in St. Louis, St. Louis, Missouri, United States
| | - Michael Tjepkema
- Health Analysis Division, Statistics Canada, Ottawa, Ontario, Canada
| | - Michael Brauer
- School of Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada
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Meng J, Martin RV, Li C, van Donkelaar A, Tzompa-Sosa ZA, Yue X, Xu JW, Weagle CL, Burnett RT. Source Contributions to Ambient Fine Particulate Matter for Canada. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:10269-10278. [PMID: 31386807 DOI: 10.1021/acs.est.9b02461] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Understanding the sectoral contribution of emissions to fine particulate matter (PM2.5) offers information for air quality management, and for investigation of association with health outcomes. This study evaluates the contribution of different emission sectors to PM2.5 in 2013 for Canada using the GEOS-Chem chemical transport model, downscaled with satellite-based PM2.5. Despite the low population-weighted PM2.5 concentrations of 5.5 μg m-3 across Canada, we find that over 70% of population-weighted PM2.5 originates from Canadian sources followed by 30% from the contiguous United States. The three leading sectoral contributors to population-weighted PM2.5 over Canada are wildfires with 1.0 μg m-3 (17%), transportation with 0.96 μg m-3 (16%), and residential combustion with 0.91 μg m-3 (15%). The relative contribution to population-weighted PM2.5 of different sectors varies regionally with residential combustion as the leading contributor in Central Canada (19%), while wildfires dominate over Northern Canada (59%), Atlantic Canada (34%), and Western Canada (18%). The contribution from U.S. sources is larger over Central Canada (33%) than over Western Canada (17%), Atlantic Canada (17%), and Northern Canada (<2%). Sectoral trend analysis showed that the contribution from anthropogenic sources to population-weighted PM2.5 decreased from 7.1 μg m-3 to 3.4 μg m-3 over the past two decades.
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Affiliation(s)
- Jun Meng
- Department of Physics and Atmospheric Science , Dalhousie University , Halifax , Nova Scotia B3H 4R2 , Canada
| | - Randall V Martin
- Department of Physics and Atmospheric Science , Dalhousie University , Halifax , Nova Scotia B3H 4R2 , Canada
- Smithsonian Astrophysical Observatory , Harvard-Smithsonian Center for Astrophysics , Cambridge , Massachusetts 02138 , United States
- Department of Energy, Environmental & Chemical Engineering , Washington University in St. Louis , St. Louis , Missouri 63130 , United States
| | - Chi Li
- Department of Physics and Atmospheric Science , Dalhousie University , Halifax , Nova Scotia B3H 4R2 , Canada
| | - Aaron van Donkelaar
- Department of Physics and Atmospheric Science , Dalhousie University , Halifax , Nova Scotia B3H 4R2 , Canada
| | - Zitely A Tzompa-Sosa
- Department of Atmospheric Science , Colorado State University , Fort Collins , Colorado 80523 , United States
| | - Xu Yue
- School of Environmental Science and Engineering , Nanjing University of Information Science & Technology , Nanjing 210044 , China
| | - Jun-Wei Xu
- Department of Physics and Atmospheric Science , Dalhousie University , Halifax , Nova Scotia B3H 4R2 , Canada
| | - Crystal L Weagle
- Department of Physics and Atmospheric Science , Dalhousie University , Halifax , Nova Scotia B3H 4R2 , Canada
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