Urban-Rural Differences in Indoor and Outdoor Air Quality: A Comparative Study in Bangladesh.

IF 3.9 3区 环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES
Toxics Pub Date : 2025-06-17 DOI:10.3390/toxics13060509
Masamitsu Kurata, Akira Hibiki, Kazushi Takahashi, Yutaka Matsumi
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Abstract

Health hazards caused by indoor air pollution (IAP) remain a global concern, especially in developing countries. IAP has complex mechanisms related to outdoor air pollution (OAP) and various other factors, and their relationship needs to be clarified to examine effective policies. We conducted an indoor and outdoor air monitoring survey in urban, peri-urban, and rural areas in Bangladesh, one of the countries with the most severe air pollution. The results show that IAP is more severe in urban households than in rural households, with a five-fold difference in daily indoor PM2.5 concentration between 117 μg/m3 and 22 μg/m3, respectively. Regression analysis reveals that IAP is strongly associated with OAP and is hardly affected by solid fuels used in well-ventilated outside kitchens. Our findings support the view that the mitigation of IAP in developing countries can be achieved not only through a transition to clean fuels, which often entails substantial costs, but also through more practical and accessible alternatives, such as the use of outdoor kitchens, electric fans, and careful management of behaviors such as indoor smoking and mosquito coil use.

室内和室外空气质量的城乡差异:孟加拉国的比较研究。
室内空气污染造成的健康危害仍然是一个全球关注的问题,特别是在发展中国家。IAP具有与室外空气污染(OAP)和其他各种因素相关的复杂机制,需要澄清它们之间的关系,以检验有效的政策。我们在空气污染最严重的国家之一孟加拉国的城市、城郊和农村地区进行了室内和室外空气监测调查。结果表明,城市家庭的IAP比农村家庭更严重,每日室内PM2.5浓度分别为117 μg/m3和22 μg/m3,相差5倍。回归分析表明,IAP与OAP密切相关,并且几乎不受室外通风良好的厨房使用的固体燃料的影响。我们的研究结果支持这样一种观点,即发展中国家的IAP缓解不仅可以通过向清洁燃料的过渡(这通常需要大量成本)来实现,还可以通过更实际和更容易获得的替代品来实现,例如使用室外厨房、电风扇,以及仔细管理室内吸烟和使用蚊蝇等行为。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Toxics
Toxics Chemical Engineering-Chemical Health and Safety
CiteScore
4.50
自引率
10.90%
发文量
681
审稿时长
6 weeks
期刊介绍: Toxics (ISSN 2305-6304) is an international, peer-reviewed, open access journal which provides an advanced forum for studies related to all aspects of toxic chemicals and materials. It publishes reviews, regular research papers, and short communications. Our aim is to encourage scientists to publish their experimental and theoretical results in detail. There is, therefore, no restriction on the maximum length of the papers, although authors should write their papers in a clear and concise way. The full experimental details must be provided so that the results can be reproduced. Electronic files or software regarding the full details of calculations and experimental procedure can be deposited as supplementary material, if it is not possible to publish them along with the text.
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