Brick kiln pollution and its impact on health: A systematic review and meta-analysis
Rattachement africain : us, np. Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
ABSTRACT Background Brick kiln emissions adversely affect air quality and the health of workers and individuals living near the kilns; however, evidence of the impacts of brick kiln pollution remains limited. Methods We conducted a systematic review of brick kiln pollution (emissions, source contributions and personal exposures) and its effects on health. We extracted articles from electronic databases and through manual citation searching. We estimated pooled, sample-size-weighted means and standard deviations for personal exposures by job type; computed mean emission factors and pollutant concentrations by brick kiln design; and meta-analyzed differences in means or proportions for health outcomes between brick kiln workers (BKWs) and controls or for participants living near or far away from kilns. Results Our search yielded 1015 articles; 208 (20%) were assessed for eligibility and 101 (10%) were included in our review. We identified three additional studies through manual searching. Of 104 studies, 74 (71%) were conducted in South Asia. The most evaluated pollutants were particulate matter (PM; n=48), sulfur dioxide (SO 2 ; n=24) and carbon monoxide (CO; n=22), and the most evaluated health outcomes were respiratory health (n=34) and musculoskeletal disorders (n=9). PM and CO emissions were higher among traditional than improved brick kilns. Mean respirable silica exposures were only measured in 4 (4%) studies and were as high as 620 μg/m 3 , exceeding the NIOSH recommended exposure limit by a factor of over 12. BKWs had consistently worse lung function, more respiratory symptoms, more musculoskeletal complaints, and more inflammation when compared to unexposed participants across studies; however, most studies had a small sample size and did not fully describe methods used for sampling or data collection. Discussion On average, BKWs had worse health outcomes when compared to unexposed controls but study quality supporting the evidence was low. Few studies reported silica concentrations or personal exposures, but the few that did suggest that exposures are high. Further research is needed to better understand the relationship between brick kiln pollution and health among workers, and to evaluate exposure mitigation strategies.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Brick kiln pollution and its impact on health: A systematic review and meta-analysis
- Date Crossref
- 16/11/2023
- Éditeur
- openRxiv
- Type
- posted-content
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Johns Hopkins University pays non établi dans la noticeUniversité ou école supérieure
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Johns Hopkins Medicine pays non établi dans la noticeÉtablissement de santé
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Kathmandu Medical College Teaching Hospital pays non établi dans la noticeInstitution
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Tribhuvan University Teaching Hospital Institute of Medicine pays non établi dans la noticeÉtablissement de santé
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Institute of Medicine pays non établi dans la noticeUniversité ou école supérieure
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University of Minnesota pays non établi dans la noticeUniversité ou école supérieure
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Brigham Young University Department of Public Health pays non établi dans la noticeUniversité ou école supérieure
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School of Medicine Center for Global Non-Communicable Disease Research and Training pays non établi dans la noticeUniversité ou école supérieure
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Bloomberg School of Public Health Department of Environmental Health and Engineering pays non établi dans la noticeUniversité ou école supérieure
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Whiting School of Engineering Department of Environmental Health and Engineering pays non établi dans la noticeUniversité ou école supérieure
Johns Hopkins University, Johns Hopkins Medicine et Kathmandu Medical College Teaching Hospital, avec 7 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.