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全球细颗粒物空气污染趋势逆转。

Reversal of trends in global fine particulate matter air pollution.

机构信息

Department of Energy, Environmental & Chemical Engineering, Washington University in St. Louis, St. Louis, MO, USA.

Office of Atmospheric Protection, Climate Change Division, U.S. Environmental Protection Agency, Washington, D.C., USA.

出版信息

Nat Commun. 2023 Sep 2;14(1):5349. doi: 10.1038/s41467-023-41086-z.

DOI:10.1038/s41467-023-41086-z
PMID:37660164
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10475088/
Abstract

Ambient fine particulate matter (PM) is the world's leading environmental health risk factor. Quantification is needed of regional contributions to changes in global PM exposure. Here we interpret satellite-derived PM estimates over 1998-2019 and find a reversal of previous growth in global PM air pollution, which is quantitatively attributed to contributions from 13 regions. Global population-weighted (PW) PM exposure, related to both pollution levels and population size, increased from 1998 (28.3 μg/m) to a peak in 2011 (38.9 μg/m) and decreased steadily afterwards (34.7 μg/m in 2019). Post-2011 change was related to exposure reduction in China and slowed exposure growth in other regions (especially South Asia, the Middle East and Africa). The post-2011 exposure reduction contributes to stagnation of growth in global PM-attributable mortality and increasing health benefits per µg/m marginal reduction in exposure, implying increasing urgency and benefits of PM mitigation with aging population and cleaner air.

摘要

环境细颗粒物 (PM) 是全球主要的环境健康风险因素。需要量化各地区对全球 PM 暴露变化的贡献。本研究通过卫星对 1998-2019 年 PM 进行估算，发现全球 PM 空气污染的增长趋势发生逆转，这主要归因于 13 个地区的贡献。与污染水平和人口规模都相关的全球人口加权 (PW) PM 暴露，从 1998 年 (28.3μg/m) 增加到 2011 年的峰值 (38.9μg/m)，之后稳步下降（2019 年为 34.7μg/m）。2011 年以后的变化与中国的暴露减少有关，并减缓了其他地区（特别是南亚、中东和非洲）的暴露增长。2011 年以后的暴露减少有助于全球 PM 归因死亡率的增长停滞，并增加了每微克/立方米边际暴露减少的健康效益，这意味着随着人口老龄化和空气质量改善，PM 减排的紧迫性和效益日益增加。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a1b8/10475088/79739b7e6933/41467_2023_41086_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a1b8/10475088/5d8856e01bcb/41467_2023_41086_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a1b8/10475088/073c3d614fab/41467_2023_41086_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a1b8/10475088/b37c04ff6f81/41467_2023_41086_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a1b8/10475088/95542e6cfc62/41467_2023_41086_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a1b8/10475088/f1c81f0eaf51/41467_2023_41086_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a1b8/10475088/15646c748bf3/41467_2023_41086_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a1b8/10475088/79739b7e6933/41467_2023_41086_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a1b8/10475088/5d8856e01bcb/41467_2023_41086_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a1b8/10475088/073c3d614fab/41467_2023_41086_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a1b8/10475088/b37c04ff6f81/41467_2023_41086_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a1b8/10475088/95542e6cfc62/41467_2023_41086_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a1b8/10475088/f1c81f0eaf51/41467_2023_41086_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a1b8/10475088/15646c748bf3/41467_2023_41086_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a1b8/10475088/79739b7e6933/41467_2023_41086_Fig7_HTML.jpg

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