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Jiang M, Hu CJ, Rowe CL, Kang H, Gong X, Dagucon CP, Wang J, Lin Y, Sood A, Guo Y, Zhu Y, Alexis NE, Gilliland FD, Belinsky SA, Yu X, Leng S. Application of artificial intelligence in quantifying lung deposition dose of black carbon in people with exposure to ambient combustion particles. JOURNAL OF EXPOSURE SCIENCE & ENVIRONMENTAL EPIDEMIOLOGY 2024; 34:529-537. [PMID: 37848612 PMCID: PMC11021374 DOI: 10.1038/s41370-023-00607-0] [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: 02/20/2023] [Revised: 09/19/2023] [Accepted: 10/04/2023] [Indexed: 10/19/2023]
Abstract
BACKGROUND Understanding lung deposition dose of black carbon is critical to fully reconcile epidemiological evidence of combustion particles induced health effects and inform the development of air quality metrics concerning black carbon. Macrophage carbon load (MaCL) is a novel cytology method that quantifies lung deposition dose of black carbon, however it has limited feasibility in large-scale epidemiological study due to the labor-intensive manual counting. OBJECTIVE To assess the association between MaCL and episodic elevation of combustion particles; to develop artificial intelligence based counting algorithm for MaCL assay. METHODS Sputum slides were collected during episodic elevation of ambient PM2.5 (n = 49, daily PM2.5 > 10 µg/m3 for over 2 weeks due to wildfire smoke intrusion in summer and local wood burning in winter) and low PM2.5 period (n = 39, 30-day average PM2.5 < 4 µg/m3) from the Lovelace Smokers cohort. RESULTS Over 98% individual carbon particles in macrophages had diameter <1 µm. MaCL levels scored manually were highly responsive to episodic elevation of ambient PM2.5 and also correlated with lung injury biomarker, plasma CC16. The association with CC16 became more robust when the assessment focused on macrophages with higher carbon load. A Machine-Learning algorithm for Engulfed cArbon Particles (MacLEAP) was developed based on the Mask Region-based Convolutional Neural Network. MacLEAP algorithm yielded excellent correlations with manual counting for number and area of the particles. The algorithm produced associations with ambient PM2.5 and plasma CC16 that were nearly identical in magnitude to those obtained through manual counting. IMPACT STATEMENT Understanding lung black carbon deposition is crucial for comprehending health effects of combustion particles. We developed "Machine-Learning algorithm for Engulfed cArbon Particles (MacLEAP)", the first artificial intelligence algorithm for quantifying airway macrophage black carbon. Our study bolstered the algorithm with more training images and its first use in air pollution epidemiology. We revealed macrophage carbon load as a sensitive biomarker for heightened ambient combustion particles due to wildfires and residential wood burning.
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Affiliation(s)
- Menghui Jiang
- School of Medicine, University of New Mexico, Albuquerque, NM, USA
| | - Chelin Jamie Hu
- College of Nursing, University of New Mexico College of Nursing, Albuquerque, NM, USA
| | - Cassie L Rowe
- School of Medicine, University of New Mexico, Albuquerque, NM, USA
| | - Huining Kang
- School of Medicine, University of New Mexico, Albuquerque, NM, USA
- University of New Mexico Comprehensive Cancer Center, Albuquerque, NM, USA
| | - Xi Gong
- Department of Geography & Environmental Studies, University of New Mexico, Albuquerque, NM, USA
| | | | - Jialiang Wang
- School of Medicine, University of New Mexico, Albuquerque, NM, USA
| | - Yan Lin
- Department of Geography & Environmental Studies, University of New Mexico, Albuquerque, NM, USA
| | - Akshay Sood
- School of Medicine, University of New Mexico, Albuquerque, NM, USA
- Miners Colfax Medical Center, Raton, NM, USA
| | - Yan Guo
- School of Medicine, University of New Mexico, Albuquerque, NM, USA
- University of New Mexico Comprehensive Cancer Center, Albuquerque, NM, USA
| | - Yiliang Zhu
- School of Medicine, University of New Mexico, Albuquerque, NM, USA
| | - Neil E Alexis
- Center for Environmental Medicine Asthma and Lung Biology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Frank D Gilliland
- Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Steven A Belinsky
- University of New Mexico Comprehensive Cancer Center, Albuquerque, NM, USA
- Lung Cancer Program, Lovelace Biomedical Research Institute, Albuquerque, NM, USA
| | - Xiaozhong Yu
- College of Nursing, University of New Mexico College of Nursing, Albuquerque, NM, USA.
| | - Shuguang Leng
- School of Medicine, University of New Mexico, Albuquerque, NM, USA.
- University of New Mexico Comprehensive Cancer Center, Albuquerque, NM, USA.
- Lung Cancer Program, Lovelace Biomedical Research Institute, Albuquerque, NM, USA.
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Zhang R, Li X, Li X, Zhang Q, Tang J, Liu Z, Song G, Jiang L, Yang F, Zhou J, Che H, Han Y, Qi X, Chen Y, Zhang S. Characterization of risks and pathogenesis of respiratory diseases caused by rural atmospheric PM 2.5. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 914:169878. [PMID: 38190917 DOI: 10.1016/j.scitotenv.2024.169878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 12/17/2023] [Accepted: 01/01/2024] [Indexed: 01/10/2024]
Abstract
Forty-six percent of the world's population resides in rural areas, the majority of whom belong to vulnerable groups. They mainly use cheap solid fuels for cooking and heating, which release a large amount of PM2.5 and cause adverse effects to human health. PM2.5 exhibits urban-rural differences in its health risk to the respiratory system. However, the majority of research on this issue has focused on respiratory diseases induced by atmospheric PM2.5 in urban areas, while rural areas have been ignored for a long time, especially the pathogenesis of respiratory diseases. This is not helpful for promoting environmental equity to aid vulnerable groups under PM2.5 pollution. Thus, this study focuses on rural atmospheric PM2.5 in terms of its chemical components, toxicological effects, respiratory disease types, and pathogenesis, represented by PM2.5 from rural areas in the Sichuan Basin, China (Rural SC-PM2.5). In this study, organic carbon is the most significant component of Rural SC-PM2.5. Rural SC-PM2.5 significantly induces cytotoxicity, oxidative stress, and inflammatory response. Based on multiomics, bioinformatics, and molecular biology, Rural SC-PM2.5 inhibits ribonucleotide reductase regulatory subunit M2 (RRM2) to disrupt the cell cycle, impede DNA replication, and ultimately inhibit lung cell proliferation. Furthermore, this study supplements and supports the epidemic investigation. Through an analysis of the transcriptome and human disease database, it is found that Rural SC-PM2.5 may mainly involve pulmonary hypertension, sarcoidosis, and interstitial lung diseases; in particular, congenital diseases may be ignored by epidemiological surveys in rural areas, including tracheoesophageal fistula, submucous cleft of the hard palate, and congenital hypoplasia of the lung. This study contributes to a greater scientific understanding of the health risks posed by rural PM2.5, elucidates the pathogenesis of respiratory diseases, clarifies the types of respiratory diseases, and promotes environmental equity.
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Affiliation(s)
- Ronghua Zhang
- Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan, China; Department of Respiratory and Critical Care Medicine, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, Sichuan, China
| | - Xiaomeng Li
- Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan, China; Department of Respiratory and Critical Care Medicine, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, Sichuan, China; Research Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - Xuan Li
- Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan, China; School of Public Health, North Sichuan Medical College, Nanchong 637000, Sichuan, China
| | - Qin Zhang
- Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan, China; Department of Respiratory and Critical Care Medicine, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, Sichuan, China
| | - Jiancai Tang
- Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan, China; Department of Respiratory and Critical Care Medicine, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, Sichuan, China
| | - Zhenzhong Liu
- School of Public Health, North Sichuan Medical College, Nanchong 637000, Sichuan, China
| | - Guiqin Song
- Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan, China
| | - Li Jiang
- Department of Respiratory and Critical Care Medicine, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, Sichuan, China
| | - Fumo Yang
- College of Architecture and Environment, Sichuan University, Chengdu 610065, China
| | - Jiawei Zhou
- Research Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - Hanxiong Che
- Research Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - Yan Han
- Research Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - Xin Qi
- Research Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - Yang Chen
- Research Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China.
| | - Shumin Zhang
- Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan, China; Department of Respiratory and Critical Care Medicine, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, Sichuan, China.
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Grippo A, Zhu K, Yeung EH, Bell EM, Bonner MR, Tian L, Mendola P, Mu L. Indoor air pollution exposure and early childhood development in the Upstate KIDS Study. ENVIRONMENTAL RESEARCH 2023; 234:116528. [PMID: 37419197 DOI: 10.1016/j.envres.2023.116528] [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: 04/20/2023] [Revised: 06/23/2023] [Accepted: 06/29/2023] [Indexed: 07/09/2023]
Abstract
BACKGROUND Limited human studies have investigated the impact of indoor air pollution on early childhood neurodevelopment among the US population. We aimed to examine the associations between prenatal and postnatal indoor air pollution exposure and early childhood development in a population-based birth cohort. METHODS This analysis included 4735 mother-child pairs enrolled between 2008 and 2010 in the Upstate KIDS Study. Indoor air pollution exposure from cooking fuels, heating fuels, and passive smoke during pregnancy, and at 12 and 36 months after birth were assessed by questionnaires. Five domains of child development were assessed by the Ages and Stages Questionnaire at 4, 8, 12, 18, 24, 30, and 36 months. Generalized estimating equations were used to estimate odds ratios (ORs) and 95% confidence intervals (CIs), adjusting for potential confounders. RESULTS Exposure to unclean cooking fuels (natural gas, propane, or wood) throughout the study period was associated with increased odds of failing any development domain (OR = 1.28, 95% CI 1.07, 1.53), the gross motor domain (OR = 1.52, 95% CI: 1.09, 2.13), and the personal-social domain (OR = 1.36, 95% CI: 1.00, 1.85), respectively. Passive smoke exposure throughout the study period increased the odds of failing the problem-solving domain by 71% (OR = 1.71, 95% CI 1.01, 2.91) among children of non-smoking mothers. No association was found between heating fuel use and failing any or specific domains. CONCLUSION Unclean cooking fuel use and passive smoke exposure during pregnancy and early life were associated with developmental delays in this large prospective birth cohort.
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Affiliation(s)
- Alexandra Grippo
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo, The State University of New York, Buffalo, NY, USA
| | - Kexin Zhu
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo, The State University of New York, Buffalo, NY, USA
| | - Edwina H Yeung
- Division of Population Health Research, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
| | - Erin M Bell
- Department of Environmental Health Sciences and Epidemiology and Biostatistics, University at Albany School of Public Health, Rensselaer, NY, USA
| | - Matthew R Bonner
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo, The State University of New York, Buffalo, NY, USA
| | - Lili Tian
- Department of Biostatistics, School of Public Health and Health Professions, University at Buffalo, The State University of New York, Buffalo, NY, USA
| | - Pauline Mendola
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo, The State University of New York, Buffalo, NY, USA
| | - Lina Mu
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo, The State University of New York, Buffalo, NY, USA.
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Mehta SS, Elizabeth Hodgson M, Lunn RM, Ashley CE, Arroyave WD, Sandler DP, White AJ. Indoor wood-burning from stoves and fireplaces and incident lung cancer among Sister Study participants. ENVIRONMENT INTERNATIONAL 2023; 178:108128. [PMID: 37542784 PMCID: PMC10530432 DOI: 10.1016/j.envint.2023.108128] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 06/21/2023] [Accepted: 07/31/2023] [Indexed: 08/07/2023]
Abstract
BACKGROUND AND AIM Epidemiological studies conducted mostly in low- and middle-income countries have found a positive association between household combustion of wood and lung cancer. However, most studies have been retrospective, and few have been conducted in the United States where indoor wood-burning usage patterns differ. We examined the association of exposure to indoor wood smoke from fireplaces and stoves with incident lung cancer in a U.S.-wide cohort of women. METHODS We included 50,226 women without prior lung cancer participating in the U.S.-based prospective Sister Study. At enrollment (2003-2009), women reported frequency of use of wood-burning stoves and/or fireplaces in their longest-lived adult residence. Cox regression was used to estimate adjusted hazard ratios (HRadj) and 95 % confidence intervals (CI) for the association between indoor wood-burning fireplace/stove use and incident lung cancer. Lung cancer was self-reported and confirmed with medical records. RESULTS During an average 11.3 years of follow-up, 347 medically confirmed lung cancer cases accrued. Overall, 62.3 % of the study population reported the presence of an indoor wood-burning fireplace/stove at their longest-lived adult residence and 20.6 % reported annual usage of ≥30 days/year. Compared to those without a wood-burning fireplace/stove, women who used their wood-burning fireplace/stove ≥30 days/year had an elevated rate of lung cancer (HRadj = 1.68; 95 % CI = 1.27, 2.20). In never smokers, positive associations were seen for use 1-29 days/year (HRadj = 1.64; 95 % CI = 0.87, 3.10) and ≥30 days/year (HRadj = 1.99; 95 % CI = 1.02, 3.89). Associations were also elevated across all income groups, in Northeastern, Western or Midwestern U.S. regions, and among those who lived in urban or rural/small town settings. CONCLUSIONS Our prospective analysis of a cohort of U.S. women found that increasing frequency of wood-burning indoor fireplace/stove usage was associated with incident lung cancer, even among never smokers.
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Affiliation(s)
- Suril S Mehta
- Integrative Health Assessments Branch, Division of Translational Toxicology, National Institute of Environmental Health Sciences, Research Triangle Park, NC, United States.
| | - M Elizabeth Hodgson
- Integrated Laboratory Systems, LLC an Inotiv Company, Morrisville, NC, United States
| | - Ruth M Lunn
- Integrative Health Assessments Branch, Division of Translational Toxicology, National Institute of Environmental Health Sciences, Research Triangle Park, NC, United States
| | - Claire E Ashley
- Gillings School of Global Public Health, University of North Carolina-Chapel Hill, Chapel Hill, NC, United States
| | - Whitney D Arroyave
- Integrated Laboratory Systems, LLC an Inotiv Company, Morrisville, NC, United States
| | - Dale P Sandler
- Epidemiology Branch, Division of Intramural Research, National Institute of Environmental Health Sciences, Research Triangle Park, NC, United States
| | - Alexandra J White
- Epidemiology Branch, Division of Intramural Research, National Institute of Environmental Health Sciences, Research Triangle Park, NC, United States
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Mechanisms of Lung Damage and Development of COPD Due to Household Biomass-Smoke Exposure: Inflammation, Oxidative Stress, MicroRNAs, and Gene Polymorphisms. Cells 2022; 12:cells12010067. [PMID: 36611860 PMCID: PMC9818405 DOI: 10.3390/cells12010067] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 12/12/2022] [Accepted: 12/13/2022] [Indexed: 12/28/2022] Open
Abstract
Chronic exposure to indoor biomass smoke from the combustion of solid organic fuels is a major cause of disease burden worldwide. Almost 3 billion people use solid fuels such as wood, charcoal, and crop residues for indoor cooking and heating, accounting for approximately 50% of all households and 90% of rural households globally. Biomass smoke contains many hazardous pollutants, resulting in household air pollution (HAP) exposure that often exceeds international standards. Long-term biomass-smoke exposure is associated with Chronic Obstructive Pulmonary Disease (COPD) in adults, a leading cause of morbidity and mortality worldwide, chronic bronchitis, and other lung conditions. Biomass smoke-associated COPD differs from the best-known cigarette smoke-induced COPD in several aspects, such as a slower decline in lung function, greater airway involvement, and less emphysema, which suggests a different phenotype and pathophysiology. Despite the high burden of biomass-associated COPD, the molecular, genetic, and epigenetic mechanisms underlying its pathogenesis are poorly understood. This review describes the pathogenic mechanisms potentially involved in lung damage, the development of COPD associated with wood-derived smoke exposure, and the influence of genetic and epigenetic factors on the development of this disease.
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Mutlu E, Cristy T, Stiffler B, Waidyanatha S, Chartier R, Jetter J, Krantz T, Shen G, Champion W, Miller B, Richey J, Burback B, Rider CV. Do Storage Conditions Affect Collected Cookstove Emission Samples? Implications for Field Studies. ANAL LETT 2022; 56:1911-1931. [PMID: 37200484 PMCID: PMC10054858 DOI: 10.1080/00032719.2022.2150772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 11/18/2022] [Accepted: 11/18/2022] [Indexed: 05/20/2023]
Abstract
Cookstove emissions are a significant source of indoor air pollution in developing countries and rural communities world-wide. Considering that many research sites for evaluating cookstove emissions and interventions are remote and require potentially lengthy periods of particulate matter (PM) filter sample storage in sub-optimal conditions (e.g., lack of cold storage), an important question is whether samples collected in the field are stable over time. To investigate this, red oak was burned in a natural-draft stove, and fine PM (PM2.5) was collected on polytetrafluoroethylene filters. Filters were stored at either ambient temperature or more optimal conditions (-20°C or -80°C) for up to 3 months and extracted. The effects of storage temperature and length on stability were evaluated for measurements of extractable organic matter (EOM), PM2.5, and polycyclic aromatic compound (PAC) levels in the filter extracts. A parallel, controlled laboratory condition was also evaluated to further explore sources of variability. In general, PM2.5 and EOM in both simulated field and laboratory samples were similar regardless of the storage condition or duration. The extracts were also analyzed by gas chromatography to quantify 22 PACs and determine similarities and/or differences between the conditions. PAC levels were a more sensitive stability measure in differentiating between storage conditions. The findings suggest that measurements are relatively consistent across storage duration/temperatures for filter samples with relatively low EOM levels. This study aims to inform protocols and filter storage procedures for exposure and intervention research conducted in low- and middle-income countries where studies may be budget- and infrastructure-limited.
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Affiliation(s)
- Esra Mutlu
- Center for Computational Toxicology and Exposure, U.S. EPA, RTP, NC, USA
- Division of the Translational Toxicology, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | | | | | - Suramya Waidyanatha
- Division of the Translational Toxicology, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | | | - Jim Jetter
- Center for Environmental Measurement and Modelling, U.S. EPA, RTP, NC, USA
| | - Todd Krantz
- Center for Environmental Measurement and Modelling, U.S. EPA, RTP, NC, USA
| | - Guofeng Shen
- Center for Environmental Measurement and Modelling, U.S. EPA, RTP, NC, USA
| | - Wyatt Champion
- Oak Ridge Institute for Science and Education (ORISE) Postdoctoral Fellow at U.S. EPA, Office of Research and Development, Center for Environmental Measurement and Modelling, RTP, NC, USA
| | | | | | | | - Cynthia V. Rider
- Division of the Translational Toxicology, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
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Trojanowski R, Lindberg J, Butcher T, Fthenakis V. Realistic operation of two residential cordwood-fired outdoor hydronic heater appliances-Part 1: Particulate and gaseous emissions. JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION (1995) 2022; 72:738-761. [PMID: 35775655 DOI: 10.1080/10962247.2022.2044409] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 01/22/2022] [Accepted: 01/31/2022] [Indexed: 06/15/2023]
Abstract
This study investigated how heat demand and fuel loading affect the emissions from outdoor wood-fired hydronic heaters by testing two such appliances using an integrated-duty cycle test method. This test included transient operating conditions, such as cold and hot-starts and modulation between 15 and 100% of maximum rated output. Emission values indicate transient operating conditions produce higher emissions than steady state operation. Cold starts resulted in elevated particulate matter emission factors for both appliances; in one case the particulate matter emission factor for this period was >3500 mg/MJ, which represented emissions 20 times the average value. Additionally, when heat demand was cycled-elevated CO emission factors were measured, with values >5000 mg/MJ for both appliances and more than 3 times the appliance averages, respectively. It follows that the appliance average particulate matter emission factors and CO emission factors were not representative of the actual EF values during these transient periods. In contrast, methane emission factors were relatively stable throughout all tested combustion conditions; however, they were much higher than oil-fired appliances are therefore should not be ignored. These findings demonstrate that wood-fired hydronic heater emissions during transient operating conditions can be significantly greater than emissions during steady-state test conditions, such as those used in typical certification tests. Consequently, certification test values for particulate matter and CO emission factors may significantly underestimate the actual emissions of these appliances when operated in a home. Use of integrated duty-cycle test protocols that capture cold-starts and reloading are better for representing in-use operations of wood-fired hydronic heaters and provide more realistic emissions and delivered efficiency measurements.Implications: In this work we provide information on the particulate and gaseous emissions from two wood fired outdoor hydronic heaters. The units were tested using an integrated duty cycle test method that captured cold starts, reload, cyclic and modulating periods between 15 and 100% of maximum rated output. The data and results show a much higher emission factor than those reported by current certification test methods but are more representative of how the units operate in the field.
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Affiliation(s)
- Rebecca Trojanowski
- Brookhaven National Laboratory, Interdisciplinary Science Department, Energy Conversion Group, Upton, NY, USA
- Department of Earth and Environmental Engineering, Columbia University, New York, NY, USA
| | - Jake Lindberg
- Brookhaven National Laboratory, Interdisciplinary Science Department, Energy Conversion Group, Upton, NY, USA
- Department of Material Science and Chemical Engineering, Stony Brook University, Stony Brook, NY, USA
| | - Thomas Butcher
- Brookhaven National Laboratory, Interdisciplinary Science Department, Energy Conversion Group, Upton, NY, USA
| | - Vasilis Fthenakis
- Brookhaven National Laboratory, Interdisciplinary Science Department, Energy Conversion Group, Upton, NY, USA
- Department of Earth and Environmental Engineering, Columbia University, New York, NY, USA
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Lindberg J, Vitillo N, Wurth M, Frank BP, Tang S, LaDuke G, Fritz PM, Trojanowski R, Butcher T. Characterization of in-stack particulate emissions from residential wood hydronic heater appliances under different combustion conditions. JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION (1995) 2022; 72:720-737. [PMID: 35775657 DOI: 10.1080/10962247.2022.2049398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 12/29/2021] [Accepted: 01/10/2022] [Indexed: 06/15/2023]
Abstract
In the current work, we provide measurements of size-resolved particle number concentration (PNC), particle mass concentration (PMC), lung-deposited surface area (LDSA), and black carbon (BC) concentration for three biomass fired hydronic heaters during operation in four different combustion conditions. The appliances include one woodchip-fueled hydronic heater and two outdoor cordwood-fueled hydronic heaters. The operating conditions included startup, low output, high output, and burnout. Measurements were made using a custom dilution sampling system and a suite of commercially available, time-resolved, ambient aerosol measurement instrumentation. The PNC, as measured using an Dekati Electrical Low Pressure Impactor+ (ELPI), had operating condition mean values ranging between 4.1 and 52 million particles per cubic centimeter (#/cm3). The highest reported PNC occurred during the startup condition in all cases. Calculating the particle size distribution measured across each operating phase for the same instrument gave geometric mean diameters (dg) in the range of 0.080-0.256 µm. The largest dg per appliance was nearly always attributable to the startup condition (for hydronic heater 1, startup dg ranked second).We did not observe the same trends when we transformed the ELPI PNC to PMC and particle surface area concentration estimates across operating conditions, suggesting PNC and dg are highly variable. Furthermore, simultaneous measurements of PNC, PMC, and PSAC using instrumentation with different working principles gave varying results, potentially suggesting that particles of different composition and morphology are produced under different combustion conditions.Implications: In this work we compare the results from testing of 3 biomass fired hydronic heaters including one chip-fired appliance and two cordwood-fired appliances. The emissions from these appliances were made across four operating conditions and using three different non-regulatory emissions metrics. This work: describes the difference between chip and cordwood fired units and the effect of operating condition on emissions across the three emissions metrics.
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Affiliation(s)
- Jake Lindberg
- Department of Materials Science and Chemical Engineering, State University of New York at Stony Brook, Stony Brook, New York, USA
- Brookhaven National Laboratory, Interdisciplinary Science Department, Energy Conversion Group, Upton, Massachusetts, USA
| | - Nicole Vitillo
- York State Department of Health, Center for Environmental Health, Bureau of Toxic Substance Assessment, Exposure Characterization and Response Section New, Albany, New York, USA
| | - Marilyn Wurth
- York State Department of Environmental Conservation, Division of Air Resources, Bureau of Mobile Sources & Technology Development, Emissions Measurement Research Group New, Albany, New York, USA
| | - Brian P Frank
- York State Department of Environmental Conservation, Division of Air Resources, Bureau of Mobile Sources & Technology Development, Emissions Measurement Research Group New, Albany, New York, USA
| | - Shida Tang
- York State Department of Environmental Conservation, Division of Air Resources, Bureau of Mobile Sources & Technology Development, Emissions Measurement Research Group New, Albany, New York, USA
| | - Gil LaDuke
- York State Department of Environmental Conservation, Division of Air Resources, Bureau of Mobile Sources & Technology Development, Emissions Measurement Research Group New, Albany, New York, USA
| | - Patricia Mason Fritz
- York State Department of Health, Center for Environmental Health, Bureau of Toxic Substance Assessment, Exposure Characterization and Response Section New, Albany, New York, USA
| | - Rebecca Trojanowski
- Brookhaven National Laboratory, Interdisciplinary Science Department, Energy Conversion Group, Upton, Massachusetts, USA
- Department of Earth and Environmental Engineering, Columbia University, New York, New York, USA
| | - Thomas Butcher
- Brookhaven National Laboratory, Interdisciplinary Science Department, Energy Conversion Group, Upton, Massachusetts, USA
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9
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Marin A, Rector L, Morin B, Allen G. Residential wood heating: An overview of U.S. impacts and regulations. JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION (1995) 2022; 72:619-628. [PMID: 35775654 DOI: 10.1080/10962247.2022.2050442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 02/12/2022] [Accepted: 03/02/2022] [Indexed: 06/15/2023]
Abstract
Air pollution from residential wood heating poses a significant public health risk and is a primary cause of PM nonattainment in some areas of the United States. Those emissions also play a role in regional haze and climate change. While regulatory programs have focused on emissions reductions from large facilities, the residential heating sector has received limited attention. The failure to develop effective programs to address this emission source hampers the ability of state and local air quality programs to meet clean air goals. An updated New Source Performance Standard (NSPS) for Residential Wood Heaters was promulgated in 2015, which includes more stringent emissions standards for wood stoves and broadens its scope to regulate additional types of wood heating appliances. However, weaknesses in the test methods and programs used to certify compliance with the NSPS limits hamper the efficacy of those requirements. Current emissions certification tests measure stove performance under defined laboratory conditions that (1) do not adequately reflect operation and performance of appliances in homes, (2) are not sufficiently repeatable to allow for comparison of emissions of different appliances, and (3) allow manufacturers leeway to modify critical test fueling and operating parameters which can significantly impact performance outcomes. These foundational regulatory issues present substantial challenges to promoting the cleanest and most efficient wood heating systems. This paper provides an overview of the air quality and public health impacts of residential wood heating and discusses the weaknesses in the current emission certification approaches and work by the Northeast States for Coordinated Air Use Management (NESCAUM) and the New York State Energy Research and Development Authority to develop improved testing methods. Other articles in this issue discuss the development and testing of those methods in detail.Implications: Air pollution from residential wood heating poses a significant public health risk and is a primary cause of PM nonattainment in some areas of the United States. Those emissions also play a role in regional haze and climate change. While regulatory programs have focused on emissions reductions from large facilities, the residential heating sector has received limited attention. The failure to develop effective programs to address this emission source hampers the ability of state and local air quality programs to meet clean air goals. This paper provides an overview of the issue.
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Warner JS, Bryan JM, Paulin LM. The Effect of Rurality and Poverty on COPD Outcomes in New Hampshire: An Analysis of Statewide Hospital Discharge Data. CHRONIC OBSTRUCTIVE PULMONARY DISEASES (MIAMI, FLA.) 2022; 9:500-509. [PMID: 35905747 PMCID: PMC9718582 DOI: 10.15326/jcopdf.2022.0299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Purpose Individuals in rural areas of the United States have a greater risk of chronic obstructive pulmonary disease (COPD) and have worse COPD outcomes. New Hampshire (NH) is split between non-rural and rural counties. Methods We examined differences in COPD exacerbation rates ([encounters per county/county population of 35 years of age and older] × 100), length of stay (LOS), and total charges by rurality, determined by the 2013 National Center for Health Statistics rural-urban classification. Linear regression analysis determined the association of rural status on COPD outcomes, adjusting for age, gender, insurance status, and county-level smoking prevalence. Findings A total of 15,916 encounters were analyzed, of which 5805 were inpatient and 10,111 were from the emergency department, 7058 (44%) were male, and the mean age was 65.6. A total of 31% were from large, fringe metro counties, 25.9% were from medium metro counties, 37.6% were from micropolitan counties, and 5.5% were from non-core counties. In multivariable regression, rural counties had higher COPD exacerbation rates compared to urban counties (non-core beta=0.18, [confidence interval (CI) 0.16, 0.20]; micropolitan beta=0.02, CI [0.01, 0.03]); medium metro counties (beta=-0.07, Cl [-0.09, -0.06]) had lower rates of COPD exacerbations (P < 0.001 for all). Compared to urban counties, encounters from rural counties had lower total charges (medium metro beta=-1695 [-2410, -980]; micropolitan beta=-2701 [-3315, -2088]; non-core beta=-4453 [-5646, -3260], all p<0.001). LOS did not differ by rurality. Conclusions Accounting for poverty and other sociodemographic factors, the rates of COPD exacerbation encounters were higher in rural versus non-rural NH counties. Additionally, non-rural areas carried higher total charges, potentially due to more resource availability. These results support the need for future interventions to improve outcomes in rural COPD patients.
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Affiliation(s)
- Jacob S. Warner
- Department of Internal Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire, United States
| | - Jane M. Bryan
- Dartmouth College, Hanover, New Hampshire, United States
| | - Laura M. Paulin
- Department of Pulmonary and Critical Care, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire, United States
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11
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Hadeed SJ, O’Rourke MK, Canales RA, Joshweseoma L, Sehongva G, Paukgana M, Gonzalez-Figueroa E, Alshammari M, Burgess JL, Harris RB. Household and behavioral determinants of indoor PM 2.5 in a rural solid fuel burning Native American community. INDOOR AIR 2021; 31:2008-2019. [PMID: 34235761 PMCID: PMC8530885 DOI: 10.1111/ina.12904] [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: 02/11/2021] [Revised: 05/18/2021] [Accepted: 06/24/2021] [Indexed: 06/13/2023]
Abstract
Indoor and outdoor concentrations of PM2.5 were measured for 24 h during heating and non-heating seasons in a rural solid fuel burning Native American community. Household building characteristics were collected during the initial home sampling visit using technician walkthrough questionnaires, and behavioral factors were collected through questionnaires by interviewers. To identify seasonal behavioral factors and household characteristics associated with indoor PM2.5 , data were analyzed separately by heating and non-heating seasons using multivariable regression. Concentrations of PM2.5 were significantly higher during the heating season (indoor: 36.2 μg/m3 ; outdoor: 22.1 μg/m3 ) compared with the non-heating season (indoor: 14.6 μg/m3 ; outdoor: 9.3 μg/m3 ). Heating season indoor PM2.5 was strongly associated with heating fuel type, housing type, indoor pests, use of a climate control unit, number of interior doors, and indoor relative humidity. During the non-heating season, different behavioral and household characteristics were associated with indoor PM2.5 concentrations (indoor smoking and/or burning incense, opening doors and windows, area of surrounding environment, building size and height, and outdoor PM2.5 ). Homes heated with coal and/or wood, or a combination of coal and/or wood with electricity and/or natural gas had elevated indoor PM2.5 concentrations that exceeded both the EPA ambient standard (35 μg/m3 ) and the WHO guideline (25 μg/m3 ).
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Affiliation(s)
- Steven J. Hadeed
- Department of Community, Environment and Policy, University of Arizona Mel and Enid Zuckerman College of Public Health
| | - Mary Kay O’Rourke
- Department of Community, Environment and Policy, University of Arizona Mel and Enid Zuckerman College of Public Health
| | - Robert A. Canales
- Department of Environmental and Occupational Health, Milken Institute School of Public Health, George Washington University, Washington, DC
| | | | | | | | - Emmanuel Gonzalez-Figueroa
- Department of Community, Environment and Policy, University of Arizona Mel and Enid Zuckerman College of Public Health
| | - Modhi Alshammari
- Department of Community, Environment and Policy, University of Arizona Mel and Enid Zuckerman College of Public Health
| | - Jefferey L. Burgess
- Department of Community, Environment and Policy, University of Arizona Mel and Enid Zuckerman College of Public Health
| | - Robin B. Harris
- Department of Epidemiology and Biostatistics, University of Arizona, Mel and Enid Zuckerman College of Public Health
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12
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Tao S, Shen G, Cheng H, Ma J. Toward Clean Residential Energy: Challenges and Priorities in Research. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:13602-13613. [PMID: 34597039 DOI: 10.1021/acs.est.1c02283] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Solid fuels used for cooking, heating, and lighting are major emission sources of many air pollutants, specifically PM2.5 and black carbon, resulting in adverse environmental and health impacts. At the same time, the transition from using residential solid fuels toward using cleaner energy sources can result in significant health benefits. Here, we briefly review recent research progress on the emissions of air pollutants from the residential sector and the impacts of emissions on ambient and indoor air quality, population exposure, and health consequences. The major challenges and future research priorities are identified and discussed.
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Affiliation(s)
- Shu Tao
- College of Environmental Science and Technology, Southern University of Science and Technology, Shenzhen 518055, China
- College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
| | - Guofeng Shen
- College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
| | - Hefa Cheng
- College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
| | - Jianmin Ma
- College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
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13
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Raju S, Siddharthan T, McCormack MC. Indoor Air Pollution and Respiratory Health. Clin Chest Med 2021; 41:825-843. [PMID: 33153698 DOI: 10.1016/j.ccm.2020.08.014] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Worldwide, more than 4 million deaths annually are attributed to indoor air pollution. This largely preventable exposure represents a key target for reducing morbidity and mortality worldwide. Significant respiratory health effects are observed, ranging from attenuated lung growth and development in childhood to accelerated lung function decline and is determined by chronic obstructive pulmonary disease later in life. Personal exposure to household air pollutants include household characteristics, combustion of solid fuels, cooking practices, and household pest allergens. This review outlines important sources of indoor air pollution, their respiratory health effects, and strategies to reduce household pollution and improve lung health across the globe.
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Affiliation(s)
- Sarath Raju
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University, Johns Hopkins School of Medicine, 1830 East Monument Street Fifth Floor, Baltimore, MD, 21287, USA.
| | - Trishul Siddharthan
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University, Johns Hopkins School of Medicine, 1830 East Monument Street Fifth Floor, Baltimore, MD, 21287, USA
| | - Meredith C McCormack
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University, Johns Hopkins School of Medicine, 1830 East Monument Street Fifth Floor, Baltimore, MD, 21287, USA
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14
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Raju S, Keet CA, Paulin LM, Matsui EC, Peng RD, Hansel NN, McCormack MC. Rural Residence and Poverty Are Independent Risk Factors for Chronic Obstructive Pulmonary Disease in the United States. Am J Respir Crit Care Med 2020; 199:961-969. [PMID: 30384774 DOI: 10.1164/rccm.201807-1374oc] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
RATIONALE In developing countries, poor and rural areas have a high burden of chronic obstructive pulmonary disease (COPD), and environmental pollutants and indoor burning of biomass have been implicated as potential causal exposures. Less is known about the prevalence of COPD in the United States with respect to urban-rural distribution, poverty, and factors that uniquely contribute to COPD among never-smokers. OBJECTIVES To understand the impact of urban-rural status, poverty, and other community factors on COPD prevalence nationwide and among never-smokers. METHODS We studied a nationally representative sample of adults in the National Health Interview Survey 2012-2015, with data linkage between neighborhood data from the U.S. Census's American Community Survey and the National Center for Health Statistics Urban-Rural Classification Scheme. The main outcome was COPD prevalence. MEASUREMENTS AND MAIN RESULTS The prevalence of COPD in poor, rural areas was almost twice that in the overall population (15.4% vs. 8.4%). In adjusted models, rural residence (odds ratio [OR], 1.23; P < 0.001) and census-level poverty (OR, 1.12; P = 0.012) were both associated with COPD prevalence, as were indicators of household wealth. Among never-smokers, rural residence was also associated with COPD (OR, 1.34; P < 0.001), as was neighborhood use of coal for heating (OR, 1.09; P < 0.001). CONCLUSIONS In a nationally representative sample, rural residence and poverty were risk factors for COPD, even among never-smokers. The use of coal for heating was also a risk factor for COPD among never-smokers. Future disparities research to elucidate contributors to COPD development in poor and rural areas, including assessments of heating sources and environmental pollutants, is needed.
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Affiliation(s)
| | | | - Laura M Paulin
- 1 Department of Medicine and.,3 Department of Environmental Health Sciences and
| | | | - Roger D Peng
- 4 Department of Biostatistics, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland
| | - Nadia N Hansel
- 1 Department of Medicine and.,3 Department of Environmental Health Sciences and
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15
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Hosgood HD, Klugman M, Matsuo K, White AJ, Sadakane A, Shu XO, Lopez-Ridaura R, Shin A, Tsuji I, Malekzadeh R, Noisel N, Bhatti P, Yang G, Saito E, Rahman S, Hu W, Bassig B, Downward G, Vermeulen R, Xue X, Rohan T, Abe SK, Broët P, Grant EJ, Dummer TJB, Rothman N, Inoue M, Lajous M, Yoo KY, Ito H, Sandler DP, Ashan H, Zheng W, Boffetta P, Lan Q. The establishment of the Household Air Pollution Consortium (HAPCO). ATMOSPHERE 2019; 10:10.3390/atmos10070422. [PMID: 32064123 PMCID: PMC7021252 DOI: 10.3390/atmos10070422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Household air pollution (HAP) is of public health concern with ~3 billion people worldwide (including >15 million in the US) exposed. HAP from coal use is a human lung carcinogen, yet the epidemiological evidence on carcinogenicity of HAP from biomass use, primarily wood, is not conclusive. To robustly assess biomass's carcinogenic potential, prospective studies of individuals experiencing a variety of HAP exposures are needed. We have built a global consortium of 13 prospective cohorts (HAPCO: Household Air Pollution Consortium) that have site- and disease-specific mortality and solid fuel use data, for a combined sample size of 587,257 participants and 57,483 deaths. HAPCO provides a novel opportunity to assess the association of HAP with lung cancer death while controlling for important confounders such as tobacco and outdoor air pollution exposures. HAPCO is also uniquely positioned to determine the risks associated with cancers other than lung as well as non-malignant respiratory and cardiometabolic outcomes, for which prospective epidemiologic research is limited. HAPCO will facilitate research to address public health concerns associated with HAP-attributed exposures by enabling investigators to evaluate sex-specific and smoking status-specific effects under various exposure scenarios.
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Affiliation(s)
- H. Dean Hosgood
- Department of Epidemiology and Population Health, Albert
Einstein College of Medicine, Bronx, NY, 10461, United States
| | - Madelyn Klugman
- Department of Epidemiology and Population Health, Albert
Einstein College of Medicine, Bronx, NY, 10461, United States
| | - Keitaro Matsuo
- Division of Epidemiology and Prevention, Aichi Cancer
Center Research Institute; Nagoya, 464-8681, Japan
| | - Alexandra J. White
- Epidemiology Branch, National Institute of Environmental
Health Science, Research Triangle Park, NC 27709, United States
| | - Atsuko Sadakane
- Department of Epidemiology, Radiation Effects Research
Foundation, Hiroshima 732-0815, Japan
| | - Xiao-Ou Shu
- Vanderbilt Institute for Global Health, Vanderbilt
University School of Medicine, Nashville, TN 37203-1738, United States
| | - Ruy Lopez-Ridaura
- National Institute of Public Health, Cuernavaca, Morelos,
62100, Mexico
| | - Aesun Shin
- Department of Preventative Medicine, Seoul National
University College of Medicine, Seoul 03080, Korea
| | - Ichiro Tsuji
- Division of Epidemiology, Department of Health Informatics
and Public Health, Tohoku University Graduate School of Medicine, Miyagi 980-8575,
Japan
| | - Reza Malekzadeh
- Digestive Diseases Research Institute, Tehran University of
Medical Sciences, Tehran, 14117, Iran
| | - Nolwenn Noisel
- CARTaGENE, Centre de Recherche du CHU Sainte-Justine,
Montreal, Quebec, H3T 1C5, Canada
| | | | - Gong Yang
- Center for Health Services, Vanderbilt University School
of Medicine, Nashville, TN, 37203-1738, United States
| | - Eiko Saito
- Division of Cancer Statistics and Integration, Center for
Cancer Control and Information Services, National Cancer Center, Tokyo, 104-0045,
Japan
| | - Shafiur Rahman
- Department of Global Health Policy, Graduate School of
Medicine, University of Tokyo, Tokyo, 113-8654, Japan
| | - Wei Hu
- Occupational and Environmental Epidemiology Branch,
Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda MD
20892-7240
| | - Bryan Bassig
- Occupational and Environmental Epidemiology Branch,
Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda MD
20892-7240
| | - George Downward
- Institute for Risk Assessment Services, Utrecht
University, Utrecht, 3508, The Netherlands
| | - Roel Vermeulen
- Institute for Risk Assessment Services, Utrecht
University, Utrecht, 3508, The Netherlands
| | - Xiaonan Xue
- Department of Epidemiology and Population Health, Albert
Einstein College of Medicine, Bronx, NY, 10461, United States
| | - Thomas Rohan
- Department of Epidemiology and Population Health, Albert
Einstein College of Medicine, Bronx, NY, 10461, United States
| | - Sarah K Abe
- Epidemiology and Prevention Group, Center for Public
Health Sciences, National Cancer Center, Tokyo, 104-0045, Japan
| | - Philippe Broët
- CARTaGENE, Centre de Recherche du CHU Sainte-Justine,
Montreal, Quebec, H3T 1C5, Canada
| | - Eric J. Grant
- Department of Epidemiology, Radiation Effects Research
Foundation, Hiroshima 732-0815, Japan
| | - Trevor J. B. Dummer
- School of Population and Public Health, University of
British Columbia, Vancouver, BC, V6T 1Z3, Canada
| | - Nat Rothman
- Occupational and Environmental Epidemiology Branch,
Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda MD
20892-7240
| | - Manami Inoue
- Epidemiology and Prevention Group, Center for Public
Health Sciences, National Cancer Center, Tokyo, 104-0045, Japan
| | - Martin Lajous
- National Institute of Public Health, Cuernavaca, Morelos,
62100, Mexico
- Department of Global Health and Population, Harvard T.H.
Chan School of Public Health, Boston, MA
| | - Keun-Young Yoo
- Department of Preventative Medicine, Seoul National
University College of Medicine, Seoul 03080, Korea
| | - Hidemi Ito
- Division of Epidemiology and Prevention, Aichi Cancer
Center Research Institute; Nagoya, 464-8681, Japan
| | - Dale P. Sandler
- Epidemiology Branch, National Institute of Environmental
Health Science, Research Triangle Park, NC 27709, United States
| | - Habib Ashan
- Department of Health Sciences, The University of Chicago,
Chicago, IL, 60637, United States
| | - Wei Zheng
- Center for Health Services, Vanderbilt University School
of Medicine, Nashville, TN, 37203-1738, United States
| | - Paolo Boffetta
- The Tisch Cancer Institute, Mount Sinai School of
Medicine, New York, NY 10029-6574, United States
- Department of Medical and Surgical Sciences, University
of Bologna, Bologna, 40126, Italy
| | - Qing Lan
- Occupational and Environmental Epidemiology Branch,
Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda MD
20892-7240
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16
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Kc R, Shukla SD, Gautam SS, Hansbro PM, O'Toole RF. The role of environmental exposure to non-cigarette smoke in lung disease. Clin Transl Med 2018; 7:39. [PMID: 30515602 PMCID: PMC6279673 DOI: 10.1186/s40169-018-0217-2] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Accepted: 11/23/2018] [Indexed: 02/03/2023] Open
Abstract
Chronic exposure to household indoor smoke and outdoor air pollution is a major contributor to global morbidity and mortality. The majority of these deaths occur in low and middle-income countries. Children, women, the elderly and people with underlying chronic conditions are most affected. In addition to reduced lung function, children exposed to biomass smoke have an increased risk of developing lower respiratory tract infections and asthma-related symptoms. In adults, chronic exposure to biomass smoke, ambient air pollution, and opportunistic exposure to fumes and dust are associated with an increased risk of developing chronic bronchitis, chronic obstructive pulmonary disease (COPD), lung cancer and respiratory infections, including tuberculosis. Here, we review the evidence of prevalence of COPD in people exposed to non-cigarette smoke. We highlight mechanisms that are likely involved in biomass-smoke exposure-related COPD and other lung diseases. Finally, we summarize the potential preventive and therapeutic strategies for management of COPD induced by non-cigarette smoke exposure.
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Affiliation(s)
- Rajendra Kc
- School of Medicine, College of Health and Medicine, University of Tasmania, Hobart, Tasmania, Australia
| | - Shakti D Shukla
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, School of Biomedical Sciences and Pharmacy, University of Newcastle, Newcastle, Australia
| | - Sanjay S Gautam
- School of Medicine, College of Health and Medicine, University of Tasmania, Hobart, Tasmania, Australia
| | - Philip M Hansbro
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, School of Biomedical Sciences and Pharmacy, University of Newcastle, Newcastle, Australia
- Centenary Institute and University of Technology Sydney, Sydney, New South Wales, Australia
| | - Ronan F O'Toole
- School of Medicine, College of Health and Medicine, University of Tasmania, Hobart, Tasmania, Australia.
- Department of Clinical Microbiology, School of Medicine, Trinity College Dublin, Dublin, Ireland.
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17
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Panigrahi A, Padhi BK. Chronic bronchitis and airflow obstruction is associated with household cooking fuel use among never-smoking women: a community-based cross-sectional study in Odisha, India. BMC Public Health 2018; 18:924. [PMID: 30053865 PMCID: PMC6062913 DOI: 10.1186/s12889-018-5846-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 07/12/2018] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The use of solid biomass as cooking fuel could be a potential risk factor for chronic bronchitis (CB) and airflow obstruction (AFO) among never-smoking women. The disease burden in India among women is generally underestimated due to limited population-based epidemiological investigations. The aim of the study was to determine the prevalence of CB and AFO among never-smoking women, and its association with household cooking fuel use. METHODS We conducted a community-based cross-sectional study with a representative study sample (N = 1120) in Odisha, India during 2013-14. Study participants, never-smoking women aged 18-49 years, were recruited randomly from the population census. Trained community health volunteers administered a validated questionnaire that aligned with the standards of the Burden of Obstructive Lung Disease (BOLD) initiative and conducted spirometry. Prevalence estimates of CB (defined as "cough with productive of sputum for at least 3 months of the year for at least 2 years") and AFO (pre-bronchodilator forced expiratory volume in 1 s (FEV1)/forced vital capacity (FVC) < 0.7) was estimated. Indoor PM2.5 exposure data were collected from a subset of 130 of the total 1120 homes in the study settings. Multivariable regression models were used to estimate the associated risk factors. RESULTS Prevalence of CB and AFO were 7.3 and 22.4% respectively among the study participants. Of the study participants, 31% used exclusive liquefied petroleum gas, 18% used mixed fuel and 51% exclusively used solid biomass fuel for household cooking. In adjusted analysis, both CB (odds ratio 1·96, 95% CI: 1.06-3.64; p = 0·031) and AFO (OR 5.55, 95% CI: 3.51-8.78; p < 0·001) were found to be associated with cooking with solid biomass fuel. Interquartile range increases in PM2.5 was associated with significantly lower FEV1/FVC ratio. CONCLUSIONS The study highlights that the estimates of population burden of CB and AFO are much higher than shown in previous epidemiological studies, and that cooking fuel type and time spent on cooking were associated with increased chronic bronchitis as well as decreased lung function as measured by FEV1/FCV ratios. To most accurately understand the current burden of disease and most effectively prevent an escalation in the future disease burden, further epidemiological investigations are warranted.
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Affiliation(s)
| | - Bijaya K. Padhi
- Center for Environmental and Occupational Health, AIPH University, Bhubaneswar, India
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18
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Casey JG, Ortega J, Coffey E, Hannigan M. Low-cost measurement techniques to characterize the influence of home heating fuel on carbon monoxide in Navajo homes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 625:608-618. [PMID: 29304498 DOI: 10.1016/j.scitotenv.2017.12.312] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Revised: 12/06/2017] [Accepted: 12/27/2017] [Indexed: 05/28/2023]
Abstract
A large fraction of the global population relies on the inefficient combustion of solid fuels for cooking and home heating, resulting in household exposure to combustion byproducts. In the southwestern United States, unhealthy air quality has been observed in some homes that use solid fuels as a primary source of heat on the Navajo Nation. In order to better understand how home heating fuel choice can influence indoor air quality in this region, we used recently developed low-cost electrochemical sensors to measure carbon monoxide (CO) air mole fractions continuously inside and outside 41 homes in two communities on the Navajo Nation. Using low-cost sensors in this study, which don't require extensive training to operate, enabled collaboration with local Diné College students and faculty in the planning and implementation of home deployments. Households used natural gas, propane, pellets, wood, and/or coal for heating. We developed quantification methods that included uncertainty estimation for Alphasense CO-B4 sensors, for measurements both inside and outside homes. CO concentrations elevated above background were observed in homes in each heating fuel group, but the highest hourly concentrations were observed in wood and coal burning homes, some of which exceeded World Health Organization Guidelines on both an hourly and eight-hourly basis. In order to probe the many factors that can influence indoor pollutant concentrations, we developed and implemented methods that employ CO emission and decay time periods observed in homes during everyday activities to estimate air exchange rates as well as CO emission rates on the basis of a given well-mixed volume of air. The air quality measurement tools and methods demonstrated in this study can be readily extended to indoor air quality studies in other communities around the world to inform how home heating and cooking practices are influencing indoor air quality during normal daily activities.
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Affiliation(s)
- Joanna Gordon Casey
- Department of Mechanical Engineering, Engineering Center, University of Colorado at Boulder, ECME 114, 1111 Engineering Drive, Boulder, CO 80309, United States.
| | - John Ortega
- Department of Mechanical Engineering, Engineering Center, University of Colorado at Boulder, ECME 114, 1111 Engineering Drive, Boulder, CO 80309, United States; Atmospheric Chemistry Observations & Modeling Laboratory, National Center For Atmospheric Research, 3450 Mitchell Lane, Boulder, CO 80301, United States.
| | - Evan Coffey
- Department of Mechanical Engineering, Engineering Center, University of Colorado at Boulder, ECME 114, 1111 Engineering Drive, Boulder, CO 80309, United States.
| | - Michael Hannigan
- Department of Mechanical Engineering, Engineering Center, University of Colorado at Boulder, ECME 114, 1111 Engineering Drive, Boulder, CO 80309, United States.
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19
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Kodros JK, Carter E, Brauer M, Volckens J, Bilsback KR, L'Orange C, Johnson M, Pierce JR. Quantifying the Contribution to Uncertainty in Mortality Attributed to Household, Ambient, and Joint Exposure to PM 2.5 From Residential Solid Fuel Use. GEOHEALTH 2018; 2:25-39. [PMID: 32158998 PMCID: PMC7007171 DOI: 10.1002/2017gh000115] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 11/15/2017] [Accepted: 12/01/2017] [Indexed: 05/13/2023]
Abstract
While there have been substantial efforts to quantify the health burden of exposure to PM2.5 from solid fuel use (SFU), the sensitivity of mortality estimates to uncertainties in input parameters has not been quantified. Moreover, previous studies separate mortality from household and ambient air pollution. In this study, we develop a new estimate of mortality attributable to SFU due to the joint exposure from household and ambient PM2.5 pollution and perform a variance-based sensitivity analysis on mortality attributable to SFU. In the joint exposure calculation, we estimate 2.81 (95% confidence interval: 2.48-3.28) million premature deaths in 2015 attributed to PM2.5 from SFU, which is 580,000 (18%) fewer deaths than would be calculated by summing separate household and ambient mortality calculations. Regarding the sources of uncertainties in these estimates, in China, India, and Latin America, we find that 53-56% of the uncertainty in mortality attributable to SFU is due to uncertainty in the percent of the population using solid fuels and 42-50% from the concentration-response function. In sub-Saharan Africa, baseline mortality rate (72%) and the concentration-response function (33%) dominate the uncertainty space. Conversely, the sum of the variance contributed by ambient and household PM2.5 exposure ranges between 15 and 38% across all regions (the percentages do not sum to 100% as some uncertainty is shared between parameters). Our findings suggest that future studies should focus on more precise quantification of solid fuel use and the concentration-response relationship to PM2.5, as well as mortality rates in Africa.
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Affiliation(s)
- J. K. Kodros
- Department of Atmospheric ScienceColorado State UniversityFort CollinsCOUSA
| | - E. Carter
- Department of Civil and Environmental EngineeringColorado State UniversityFort CollinsCOUSA
| | - M. Brauer
- School of Population and Public HealthUniversity of British ColumbiaVancouverBritish ColumbiaCanada
| | - J. Volckens
- Department of Mechanical EngineeringColorado State UniversityFort CollinsCOUSA
| | - K. R. Bilsback
- Department of Mechanical EngineeringColorado State UniversityFort CollinsCOUSA
| | - C. L'Orange
- Department of Mechanical EngineeringColorado State UniversityFort CollinsCOUSA
| | - M. Johnson
- Berkeley Air Monitoring GroupBerkeleyCAUSA
| | - J. R. Pierce
- Department of Atmospheric ScienceColorado State UniversityFort CollinsCOUSA
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Capistrano SJ, van Reyk D, Chen H, Oliver BG. Evidence of Biomass Smoke Exposure as a Causative Factor for the Development of COPD. TOXICS 2017; 5:E36. [PMID: 29194400 PMCID: PMC5750564 DOI: 10.3390/toxics5040036] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 11/20/2017] [Accepted: 11/23/2017] [Indexed: 12/20/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) is a progressive disease of the lungs characterised by chronic inflammation, obstruction of airways, and destruction of the parenchyma (emphysema). These changes gradually impair lung function and prevent normal breathing. In 2002, COPD was the fifth leading cause of death, and is estimated by the World Health Organisation (WHO) to become the third by 2020. Cigarette smokers are thought to be the most at risk of developing COPD. However, recent studies have shown that people with life-long exposure to biomass smoke are also at high risk of developing COPD. Most common in developing countries, biomass fuels such as wood and coal are used for cooking and heating indoors on a daily basis. Women and children have the highest amounts of exposures and are therefore more likely to develop the disease. Despite epidemiological studies providing evidence of the causative relationship between biomass smoke and COPD, there are still limited mechanistic studies on how biomass smoke causes, and contributes to the progression of COPD. This review will focus upon why biomass fuels are used, and their relationship to COPD. It will also suggest methodological approaches to model biomass exposure in vitro and in vivo.
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Affiliation(s)
- Sarah J Capistrano
- School of Life Sciences, University of Technology Sydney, Ultimo, NSW 2007, Australia.
- Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, The University of Sydney, NSW 2037, Australia.
| | - David van Reyk
- School of Life Sciences, University of Technology Sydney, Ultimo, NSW 2007, Australia.
- Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, The University of Sydney, NSW 2037, Australia.
| | - Hui Chen
- School of Life Sciences, University of Technology Sydney, Ultimo, NSW 2007, Australia.
| | - Brian G Oliver
- School of Life Sciences, University of Technology Sydney, Ultimo, NSW 2007, Australia.
- Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, The University of Sydney, NSW 2037, Australia.
- Emphysema Center, Woolcock Institute of Medical Research, The University of Sydney, NSW 2037, Australia.
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Deen JF, Adams AK, Fretts A, Jolly S, Navas-Acien A, Devereux RB, Buchwald D, Howard BV. Cardiovascular Disease in American Indian and Alaska Native Youth: Unique Risk Factors and Areas of Scholarly Need. J Am Heart Assoc 2017; 6:e007576. [PMID: 29066451 PMCID: PMC5721901 DOI: 10.1161/jaha.117.007576] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Jason F Deen
- Division of Cardiology, Seattle Children's Hospital, University of Washington, Seattle, WA
- Division of Cardiology, Department of Medicine, University of Washington Medical Center, Seattle, WA
| | - Alexandra K Adams
- Department of Family Medicine and Community Health, University of Wisconsin School of Medicine and Public Health, Madison, WI
- Center for American Indian and Rural Health Equity, Montana State University, Bozeman, MT
| | - Amanda Fretts
- Department of Epidemiology, Cardiovascular Health Research Unit, University of Washington, Seattle, WA
| | - Stacey Jolly
- Department of General Internal Medicine, Medicine Institute, Cleveland Clinic, Cleveland, OH
| | - Ana Navas-Acien
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY
- Department of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD
| | | | - Dedra Buchwald
- College of Medicine, Washington State University, Spokane, WA
| | - Barbara V Howard
- MedStar Health Research Institute, Hyattsville, MD
- Georgetown-Howard Universities Center for Clinical and Translational Science, Washington, DC
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Champion WM, Connors L, Montoya LD. Emission factors of fine particulate matter, organic and elemental carbon, carbon monoxide, and carbon dioxide for four solid fuels commonly used in residential heating by the U.S. Navajo Nation. JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION (1995) 2017; 67:1020-1035. [PMID: 28541823 DOI: 10.1080/10962247.2017.1334717] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 05/08/2017] [Accepted: 05/12/2017] [Indexed: 06/07/2023]
Abstract
UNLABELLED Most homes in the Navajo Nation use wood as their primary heating fuel, often in combination with locally mined coal. Previous studies observed health effects linked to this solid-fuel use in several Navajo communities. Emission factors (EFs) for common fuels used by the Navajo have not been reported using a relevant stove type. In this study, two softwoods (ponderosa pine and Utah juniper) and two high-volatile bituminous coals (Black Mesa and Fruitland) were tested with an in-use residential conventional wood stove (homestove) using a modified American Society for Testing and Materials/U.S. Environmental Protection Agency (ASTM/EPA) protocol. Filter sampling quantified PM2.5 (particulate matter with an aerodynamic diameter ≤2.5 μm) and organic (OC) and elemental (EC) carbon in the emissions. Real-time monitoring quantified carbon monoxide (CO), carbon dioxide (CO2), and total suspended particles (TSP). EFs for these air pollutants were developed and normalized to both fuel mass and energy consumed. In general, coal had significantly higher mass EFs than wood for all pollutants studied. In particular, coal emitted, on average, 10 times more PM2.5 than wood on a mass basis, and 2.4 times more on an energy basis. The EFs developed here were based on fuel types, stove design, and operating protocols relevant to the Navajo Nation, but they could be useful to other Native Nations with similar practices, such as the nearby Hopi Nation. IMPLICATIONS Indoor wood and coal combustion is an important contributor to public health burdens in the Navajo Nation. Currently, there exist no emission factors representative of Navajo homestoves, fuels, and practices. This study developed emission factors for PM2.5, OC, EC, CO, and CO2 using a representative Navajo homestove. These emission factors may be utilized in regional-, national-, and global-scale health and environmental models. Additionally, the protocols developed and results presented here may inform on-going stove design of the first EPA-certified wood and coal combination stove.
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Affiliation(s)
- Wyatt M Champion
- a Department of Civil , Environmental, and Architectural Engineering, University of Colorado Boulder , Boulder , CO , USA
| | - Lea Connors
- a Department of Civil , Environmental, and Architectural Engineering, University of Colorado Boulder , Boulder , CO , USA
| | - Lupita D Montoya
- a Department of Civil , Environmental, and Architectural Engineering, University of Colorado Boulder , Boulder , CO , USA
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Burroughs Peña MS, Rollins A. Environmental Exposures and Cardiovascular Disease: A Challenge for Health and Development in Low- and Middle-Income Countries. Cardiol Clin 2017; 35:71-86. [PMID: 27886791 DOI: 10.1016/j.ccl.2016.09.001] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Environmental exposures in low- and middle-income countries lie at the intersection of increased economic development and the rising public health burden of cardiovascular disease. Increasing evidence suggests an association of exposure to ambient air pollution, household air pollution from biomass fuel, lead, arsenic, and cadmium with multiple cardiovascular disease outcomes, including hypertension, coronary heart disease, stroke, and cardiovascular mortality. Although populations in low- and middle-income countries are disproportionately exposed to environmental pollution, evidence linking these exposures to cardiovascular disease is derived from populations in high-income countries. More research is needed to further characterize the extent of environmental exposures.
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Affiliation(s)
- Melissa S Burroughs Peña
- Division of Cardiology, Department of Medicine, University of California, San Francisco, 505 Parnassus Avenue, 11th Floor, Room 1180D, San Francisco, CA 94143, USA.
| | - Allman Rollins
- Department of Medicine, University of California, 505 Parnassus Avenue, San Francisco, CA 94143, USA
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Hong KY, Weichenthal S, Saraswat A, King GH, Henderson SB, Brauer M. Systematic identification and prioritization of communities impacted by residential woodsmoke in British Columbia, Canada. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 220:797-806. [PMID: 27838060 DOI: 10.1016/j.envpol.2016.10.056] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 09/22/2016] [Accepted: 10/18/2016] [Indexed: 06/06/2023]
Abstract
Residential woodsmoke is an under-regulated source of fine particulate matter (PM2.5), often surpassing mobile and industrial emissions in rural communities in North America and elsewhere. In the province of British Columbia (BC), Canada, many municipalities are hesitant to adopt stricter regulations for residential wood burning without empirical evidence that smoke is affecting local air quality. The objective of this study was to develop a retrospective algorithm that uses 1-h PM2.5 concentrations and daily temperature data to identify smoky days in order to prioritise communities by smoke impacts. Levoglucosan measurements from one of the smokiest communities were used to establish the most informative values for three algorithmic parameters: the daily standard deviation of 1-h PM2.5 measurements; the daily mean temperature; and the daytime-to-nighttime ratio of PM2.5 concentrations. Alternate parameterizations were tested in 45 sensitivity analyses. Using the most informative parameter values on the most recent two years of data for each community, the number of smoky days ranged from 5 to 277. Heat maps visualizing seasonal and diurnal variation in PM2.5 concentrations showed clear differences between the higher- and lower-ranked communities. Some communities were sensitive to one or more of the parameters, but the overall rankings were consistent across the 45 analyses. This information will allow stakeholder agencies to work with local governments on implementing appropriate intervention strategies for the most smoke-impacted communities.
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Affiliation(s)
- Kris Y Hong
- Environmental Health Services, BC Centre for Disease Control, 655 West 12th Avenue, Vancouver, BC, V5Z 4R4, Canada.
| | - Scott Weichenthal
- Department of Epidemiology, Biostatistics, and Occupational Health, McGill University, Purvis Hall, 1020 Pine Ave. West, Montreal, QC, H3A 1A2, Canada.
| | - Arvind Saraswat
- British Columbia Ministry of Environment, Suite 200, 10470-152 Street, Surrey, BC, V3R 0Y3, Canada; Institute for Resources, Environment & Sustainability, University of British Columbia, 2202 Main Mall, Vancouver, BC, V6T 1Z4, Canada.
| | - Gavin H King
- Institute for Resources, Environment & Sustainability, University of British Columbia, 2202 Main Mall, Vancouver, BC, V6T 1Z4, Canada.
| | - Sarah B Henderson
- Environmental Health Services, BC Centre for Disease Control, 655 West 12th Avenue, Vancouver, BC, V5Z 4R4, Canada; School of Population and Public Health, University of British Columbia, 2202 East Mall, Vancouver, BC, V6T 1Z3, Canada.
| | - Michael Brauer
- School of Population and Public Health, University of British Columbia, 2202 East Mall, Vancouver, BC, V6T 1Z3, Canada.
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White AJ, Sandler DP, D'Aloisio AA, Stanczyk F, Whitworth KW, Baird DD, Nichols HB. Antimüllerian hormone in relation to tobacco and marijuana use and sources of indoor heating/cooking. Fertil Steril 2016; 106:723-30. [PMID: 27240193 PMCID: PMC5010988 DOI: 10.1016/j.fertnstert.2016.05.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Revised: 05/16/2016] [Accepted: 05/18/2016] [Indexed: 01/02/2023]
Abstract
OBJECTIVE To evaluate exposure to tobacco, marijuana, and indoor heating/cooking sources in relation to antimüllerian hormone (AMH) levels. DESIGN Cross-sectional analysis in a sample of premenopausal women (n = 913) enrolled in the Sister Study cohort (n = 50,884). SETTING Not applicable. PATIENT(S) Women, ages 35-54 years at time of enrollment, with an archived serum sample and at least one intact ovary and classified as premenopausal. INTERVENTION(S) Not applicable. MAIN OUTCOME MEASURE(S) Serum AMH (ng/mL) levels ascertained by ultrasensitive ELISA assay. RESULT(S) Lower AMH levels were associated with sources of indoor heating, including burning wood (-36.0%; 95% confidence interval [CI], -55.7%, -7.8%) or artificial fire logs (-45.8%; 95% CI, -67.2%, -10.4%) at least 10 times/year in a residential indoor stove/fireplace. Lower AMH levels were also observed in women who were current smokers of ≥20 cigarettes/day relative to nonsmokers (-56.2%; 95% CI, -80.3%, -2.8%) and in women with 10+ years of adult environmental tobacco smoke (ETS) exposure (-31.3%; 95% CI, -51.3%, -3.1%), but no associations were observed for marijuana use. CONCLUSION(S) We confirmed previously reported findings of lower AMH levels in current heavy smokers and also found associations for long-term ETS exposure and indoor burning of wood or artificial fire logs. These findings suggest that combustion by-products from common exposures can have toxic effects on the human ovary.
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Affiliation(s)
- Alexandra J White
- Epidemiology Branch, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina.
| | - Dale P Sandler
- Epidemiology Branch, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina
| | - Aimee A D'Aloisio
- Epidemiology Branch, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina; Social and Scientific Systems, Inc., Durham, North Carolina
| | - Frank Stanczyk
- Department of Obstetrics and Gynecology and Department of Preventative Medicine, University of Southern California Keck School of Medicine, Los Angeles, California
| | - Kristina W Whitworth
- Department of Epidemiology, Human Genetics and Environmental Sciences, University of Texas School of Public Health at Houston, San Antonio Regional Campus, San Antonio, Texas; Southwest Center for Occupational and Environmental Health, University of Texas School of Public Health at Houston, Houston, Texas
| | - Donna D Baird
- Epidemiology Branch, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina
| | - Hazel B Nichols
- Department of Epidemiology, University of North Carolina, Chapel Hill, North Carolina
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Mutlu E, Warren SH, Ebersviller SM, Kooter IM, Schmid JE, Dye JA, Linak WP, Gilmour MI, Jetter JJ, Higuchi M, DeMarini DM. Mutagenicity and Pollutant Emission Factors of Solid-Fuel Cookstoves: Comparison with Other Combustion Sources. ENVIRONMENTAL HEALTH PERSPECTIVES 2016; 124:974-82. [PMID: 26895221 PMCID: PMC4937857 DOI: 10.1289/ehp.1509852] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Revised: 08/06/2015] [Accepted: 02/08/2016] [Indexed: 05/20/2023]
Abstract
BACKGROUND Emissions from solid fuels used for cooking cause ~4 million premature deaths per year. Advanced solid-fuel cookstoves are a potential solution, but they should be assessed by appropriate performance indicators, including biological effects. OBJECTIVE We evaluated two categories of solid-fuel cookstoves for eight pollutant and four mutagenicity emission factors, correlated the mutagenicity emission factors, and compared them to those of other combustion emissions. METHODS We burned red oak in a 3-stone fire (TSF), a natural-draft stove (NDS), and a forced-draft stove (FDS), and we combusted propane as a liquified petroleum gas control fuel. We determined emission factors based on useful energy (megajoules delivered, MJd) for carbon monoxide, nitrogen oxides (NOx), black carbon, methane, total hydrocarbons, 32 polycyclic aromatic hydrocarbons, PM2.5, levoglucosan (a wood-smoke marker), and mutagenicity in Salmonella. RESULTS With the exception of NOx, the emission factors per MJd were highly correlated (r ≥ 0.97); the correlation for NOx with the other emission factors was 0.58-0.76. Excluding NOx, the NDS and FDS reduced the emission factors an average of 68 and 92%, respectively, relative to the TSF. Nevertheless, the mutagenicity emission factor based on fuel energy used (MJthermal) for the most efficient stove (FDS) was between those of a large diesel bus engine and a small diesel generator. CONCLUSIONS Both mutagenicity and pollutant emission factors may be informative for characterizing cookstove performance. However, mutagenicity emission factors may be especially useful for characterizing potential health effects and should be evaluated in relation to health outcomes in future research. An FDS operated as intended by the manufacturer is safer than a TSF, but without adequate ventilation, it will still result in poor indoor air quality. CITATION Mutlu E, Warren SH, Ebersviller SM, Kooter IM, Schmid JE, Dye JA, Linak WP, Gilmour MI, Jetter JJ, Higuchi M, DeMarini DM. 2016. Mutagenicity and pollutant emission factors of solid-fuel cookstoves: comparison with other combustion sources. Environ Health Perspect 124:974-982; http://dx.doi.org/10.1289/ehp.1509852.
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Affiliation(s)
- Esra Mutlu
- National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency (EPA), Research Triangle Park, North Carolina, USA
- Center for Environmental Medicine, Asthma and Lung Biology, University of North Carolina, Chapel Hill, Chapel Hill, North Carolina, USA
| | - Sarah H. Warren
- National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency (EPA), Research Triangle Park, North Carolina, USA
| | - Seth M. Ebersviller
- National Risk Management Research Laboratory, U.S. EPA, Research Triangle Park, North Carolina, USA
| | - Ingeborg M. Kooter
- Department of Environmental Modelling, Sensing and Analyses, Netherlands Organisation for Applied Scientific Research (TNO), Utrecht, the Netherlands
| | - Judith E. Schmid
- National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency (EPA), Research Triangle Park, North Carolina, USA
| | - Janice A. Dye
- National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency (EPA), Research Triangle Park, North Carolina, USA
| | - William P. Linak
- National Risk Management Research Laboratory, U.S. EPA, Research Triangle Park, North Carolina, USA
| | - M. Ian Gilmour
- National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency (EPA), Research Triangle Park, North Carolina, USA
| | - James J. Jetter
- National Risk Management Research Laboratory, U.S. EPA, Research Triangle Park, North Carolina, USA
| | - Mark Higuchi
- National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency (EPA), Research Triangle Park, North Carolina, USA
| | - David M. DeMarini
- National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency (EPA), Research Triangle Park, North Carolina, USA
- Address correspondence to D.M. DeMarini, U.S. EPA, B105-03, Research Triangle Park, NC 27711 USA. Telephone: (919) 541-1510. E-mail:
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Stewart BW, Bray F, Forman D, Ohgaki H, Straif K, Ullrich A, Wild CP. Cancer prevention as part of precision medicine: 'plenty to be done'. Carcinogenesis 2016; 37:2-9. [PMID: 26590901 PMCID: PMC4700936 DOI: 10.1093/carcin/bgv166] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Revised: 10/30/2015] [Accepted: 11/12/2015] [Indexed: 02/06/2023] Open
Abstract
Cancer burden worldwide is projected to rise from 14 million new cases in 2012 to 24 million in 2035. Although the greatest increases will be in developing countries, where cancer services are already hard pressed, even the richest nations will struggle to meet demands of increasing patient numbers and spiralling treatment costs. No country can treat its way out of the cancer problem. Consequently, cancer control must combine improvements in treatment with greater emphasis on prevention and early detection. Cancer prevention is founded on describing the burden of cancer, identifying the causes and evaluating and implementing preventive interventions. Around 40-50% of cancers could be prevented if current knowledge about risk factors was translated into effective public health strategies. The benefits of prevention are attested to by major successes, for example, in tobacco control, vaccination against oncogenic viruses, reduced exposure to environmental and occupational carcinogens, and screening. Progress is still needed in areas such as weight control and physical activity. Fresh impetus for prevention and early detection will come through interdisciplinary approaches, encompassing knowledge and tools from advances in cancer biology. Examples include mutation profiles giving clues about aetiology and biomarkers for early detection, to stratify individuals for screening or for prognosis. However, cancer prevention requires a broad perspective stretching from the submicroscopic to the macropolitical, recognizing the importance of molecular profiling and multisectoral engagement across urban planning, transport, environment, agriculture, economics, etc., and applying interventions that may just as easily rely on a legislative measure as on a molecule.
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Affiliation(s)
| | - Freddie Bray
- International Agency for Research on Cancer, 69008 Lyon, France and
| | - David Forman
- International Agency for Research on Cancer, 69008 Lyon, France and
| | - Hiroko Ohgaki
- International Agency for Research on Cancer, 69008 Lyon, France and
| | - Kurt Straif
- International Agency for Research on Cancer, 69008 Lyon, France and
| | - Andreas Ullrich
- Noncommunicable Diseases and Mental Health, World Health Organization, 1121 Geneva 27, Switzerland
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Abstract
Rheumatoid arthritis is a chronic inflammatory debilitating disease triggered by a complex interaction involving genetic and environmental factors. Active smoking and occupational exposures such as silica increase its risk, suggesting that initial inflammation and generation of rheumatoid arthritis-related autoantibodies in the lungs may precede the clinical disease. This hypothesis paved the way to epidemiological studies investigating air pollution as a potential determinant of rheumatoid arthritis. Studies designed for epidemiology of rheumatoid arthritis found a link between traffic, a surrogate of air pollution, and this disease. Furthermore, a small case–control study recently found an association between wood smoke exposure and anticyclic citrullinated protein/peptide antibody in sera of patients presenting wood-smoke-related chronic obstructive pulmonary disease. However, reports addressing impact of specific pollutants on rheumatoid arthritis incidence and severity across populations are somewhat conflicting. In addition to the link reported between other systemic autoimmune rheumatic diseases and particulate matters/gaseous pollutants, experimental observation of exacerbated rheumatoid arthritis incidence and severity in mice models of collagen-induced arthritis after diesel exhaust particles exposure as well as hypovitaminosis D-related autoimmunity can help understand the role of air pollution in rheumatoid arthritis. All these considerations highlight the necessity to extend high quality epidemiological researches investigating different sources of atmospheric pollution across populations and particularly in low-and-middle countries, in order to further explore the biological plausibility of air pollution’s effect in the pathogenesis of rheumatoid arthritis. This should be attempted to better inform policies aiming to reduce the burden of rheumatoid arthritis.
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Affiliation(s)
- Mickael Essouma
- Division of Medicine, Sangmelima's Reference Hospital, P.O. Box 890, Sangmelima, Cameroon
| | - Jean Jacques N Noubiap
- Department of Medicine, Groote Schuur Hospital and University of Cape Town, Cape Town, South Africa ; Medical Diagnostic Center, Yaoundé, Cameroon
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Semmens EO, Noonan CW, Allen RW, Weiler EC, Ward TJ. Indoor particulate matter in rural, wood stove heated homes. ENVIRONMENTAL RESEARCH 2015; 138:93-100. [PMID: 25701812 PMCID: PMC4385435 DOI: 10.1016/j.envres.2015.02.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2014] [Revised: 02/01/2015] [Accepted: 02/03/2015] [Indexed: 05/08/2023]
Abstract
Ambient particulate matter (PM) exposures have adverse impacts on public health, but research evaluating indoor PM concentrations in rural homes in the United States using wood as fuel for heating is limited. Our objectives were to characterize indoor PM mass and particle number concentrations (PNCs), quantify infiltration of outdoor PM into the indoor environment, and investigate potential predictors of concentrations and infiltration in 96 homes in the northwestern US and Alaska using wood stoves as the primary source of heating. During two forty-eight hour sampling periods during the pre-intervention winter of a randomized trial, we assessed PM mass (<2.5μm) and PNCs (particles/cm(3)) in six size fractions (0.30-0.49, 0.50-0.99, 1.00-2.49, 2.5-5.0, 5.0-10.0, 10.0+μm). Daily mean (sd) PM2.5 concentrations were 28.8 (28.5)μg/m(3) during the first sampling period and 29.1 (30.1)μg/m(3) during the second period. In repeated measures analyses, household income was inversely associated with PM2.5 and smaller size fraction PNCs, in particular. Time of day was a significant predictor of indoor and outdoor PM2.5 concentrations, and infiltration efficiency was relatively low (Finf (sd)=0.27 (0.20)). Our findings demonstrate relatively high mean PM concentrations in these wood burning homes and suggest potential targets for interventions for improving indoor air quality and health in rural settings.
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Affiliation(s)
- Erin O Semmens
- Department of Biomedical and Pharmaceutical Sciences, Center for Environmental Health Sciences, 32 Campus Drive, The University of Montana, Missoula, MT 59812, USA.
| | - Curtis W Noonan
- Department of Biomedical and Pharmaceutical Sciences, Center for Environmental Health Sciences, 32 Campus Drive, The University of Montana, Missoula, MT 59812, USA.
| | - Ryan W Allen
- Faculty of Health Sciences, 8888 University Drive, Simon Fraser University, Burnaby, BC, Canada V5A 1S6.
| | - Emily C Weiler
- Department of Biomedical and Pharmaceutical Sciences, Center for Environmental Health Sciences, 32 Campus Drive, The University of Montana, Missoula, MT 59812, USA.
| | - Tony J Ward
- Department of Biomedical and Pharmaceutical Sciences, Center for Environmental Health Sciences, 32 Campus Drive, The University of Montana, Missoula, MT 59812, USA.
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Noonan CW, Ward TJ, Semmens EO. Estimating the number of vulnerable people in the United States exposed to residential wood smoke. ENVIRONMENTAL HEALTH PERSPECTIVES 2015; 123:A30. [PMID: 25642637 PMCID: PMC4314255 DOI: 10.1289/ehp.1409136] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Affiliation(s)
- Curtis W Noonan
- Center for Environmental Health Sciences, University of Montana, Missoula, Montana, USA
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Rogalsky DK, Mendola P, Metts TA, Martin WJ. Estimating the number of vulnerable people in the United States exposed to residential wood smoke: Rogalsky et al. Respond. ENVIRONMENTAL HEALTH PERSPECTIVES 2015; 123:A30-A31. [PMID: 25642727 PMCID: PMC4314256 DOI: 10.1289/ehp.1409136r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Affiliation(s)
- Derek K Rogalsky
- Georgetown University School of Medicine, Georgetown University, Washington, DC, USA
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White AJ, Teitelbaum SL, Stellman SD, Beyea J, Steck SE, Mordukhovich I, McCarty KM, Ahn J, Rossner P, Santella RM, Gammon MD. Indoor air pollution exposure from use of indoor stoves and fireplaces in association with breast cancer: a case-control study. Environ Health 2014; 13:108. [PMID: 25495350 PMCID: PMC4320487 DOI: 10.1186/1476-069x-13-108] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Accepted: 12/08/2014] [Indexed: 05/04/2023]
Abstract
BACKGROUND Previous studies suggest that polycyclic aromatic hydrocarbons (PAHs) may adversely affect breast cancer risk. Indoor air pollution from use of indoor stoves and/or fireplaces is an important source of ambient PAH exposure. However, the association between indoor stove/fireplace use and breast cancer risk is unknown. We hypothesized that indoor stove/fireplace use in a Long Island, New York study population would be positively associated with breast cancer and differ by material burned, and the duration and timing of exposure. We also hypothesized that the association would vary by breast cancer subtype defined by p53 mutation status, and interact with glutathione S-transferases GSTM1, T1, A1 and P1 polymorphisms. METHODS Population-based, case-control resources (1,508 cases/1,556 controls) were used to conduct unconditional logistic regression to estimate adjusted odds ratios (OR) and 95% confidence intervals (CI). RESULTS Breast cancer risk was increased among women reporting ever burning synthetic logs (which may also contain wood) in their homes (OR = 1.42, 95% CI 1.11, 1.84), but not for ever burning wood alone (OR = 0.93, 95% CI 0.77, 1.12). For synthetic log use, longer duration >7 years, older age at exposure (>20 years; OR = 1.65, 95% CI 1.02, 2.67) and 2 or more variants in GSTM1, T1, A1 or P1 (OR = 1.71, 95% CI 1.09, 2.69) were associated with increased risk. CONCLUSIONS Burning wood or synthetic logs are both indoor PAH exposure sources; however, positive associations were only observed for burning synthetic logs, which was stronger for longer exposures, adult exposures, and those with multiple GST variant genotypes. Therefore, our results should be interpreted with care and require replication.
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Affiliation(s)
- Alexandra J White
- />Department of Epidemiology, University of North Carolina, CB#7435, McGavran-Greenberg Hall, Chapel Hill, NC 27599-7435 USA
| | - Susan L Teitelbaum
- />Department of Preventative Medicine, Mt. Sinai School of Medicine, New York, NY USA
| | - Steven D Stellman
- />Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY USA
| | - Jan Beyea
- />Consulting in the Public Interest (CIPI), Lambertville, NJ USA
| | - Susan E Steck
- />Department of Epidemiology and Biostatistics, University of South Carolina, Columbia, SC USA
| | - Irina Mordukhovich
- />Exposure, Epidemiology and Risk Program, Department of Environmental Health, Harvard School of Public Health, Boston, MA USA
| | - Kathleen M McCarty
- />Department of Epidemiology, University of North Carolina, CB#7435, McGavran-Greenberg Hall, Chapel Hill, NC 27599-7435 USA
| | - Jiyoung Ahn
- />Department of Population Health, New York University School of Medicine, New York, NY USA
| | - Pavel Rossner
- />Department of Genetic Ecotoxicology, Institute of Experimental Medicine ASCR, Prague, Czech Republic
| | - Regina M Santella
- />Department of Environmental Health Sciences, Columbia University, New York, NY USA
| | - Marilie D Gammon
- />Department of Epidemiology, University of North Carolina, CB#7435, McGavran-Greenberg Hall, Chapel Hill, NC 27599-7435 USA
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Schluger N. Household air quality in high-income countries: forgotten but not gone. THE LANCET RESPIRATORY MEDICINE 2014; 2:781-3. [PMID: 25193350 DOI: 10.1016/s2213-2600(14)70183-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Neil Schluger
- Division of Pulmonary, Allergy and Critical Care Medicine, Columbia University Medical Center, New York, NY 10032, USA; World Lung Foundation, New York, NY, USA.
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