Emission Sector Impacts on Air Quality and Public Health in China From 2010 to 2020.
Emission Sector Impacts on Air Quality and Public Health in China From 2010 to 2020.
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DOI：
10.1029/2021gh000567
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发表时间：
2022-06
期刊：
影响因子：
4.8
通讯作者：
Spracklen, Dominick, V
中科院分区：
文献类型：
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作者：
Conibear, Luke;Reddingtonl, Carly L.;Silver, Ben J.;Chen, Ying;Arnold, Stephen R.;Spracklen, Dominick, V
近年来，中国的人为排放和环境细颗粒物（PM2.5）浓度有所下降。然而，PM2.5暴露量仍然很高，臭氧（O3）暴露量正在增加，公共卫生影响很大。我们使用仿真器来探索排放变化（所有物种的每个部门的平均值）如何影响2010-2020年中国空气质量和公众健康的变化。我们发现PM2.5暴露在2012年达到峰值52.8 μg m - 3，其中31%来自工业排放，22%来自住宅排放。2020年，PM2.5暴露量下降36%至33.5 μg m - 3，其中工业和居民来源的贡献分别下降15%和17%。与2012年相比，PM2.5疾病负担仅下降了9%，到2020年，工业和住宅来源的贡献分别降至15%和17%，部分原因是人口老龄化对空气污染的易感性更高。PM2.5暴露量的减少和相关的公共健康效益大部分是由于工业（58%）和住宅（29%）排放的减少。将全国PM2.5暴露量降至世界卫生组织中期目标2 （25 μg m - 3）以下，需要将住宅和工业排放进一步减少80%，这凸显了中国改善空气质量仍面临的挑战。我们使用中国长期空气质量模拟器估算了2010-2020年排放部门对空气污染和健康的影响，PM2.5暴露在2012年达到峰值，为52.8 μg m - 3，主要来自工业（31%）和住宅（22%）排放，PM2.5暴露在2020年减少了36%，主要来自工业（58%）和住宅（29%）排放，减少了9%的疾病负担
Anthropogenic emissions and ambient fine particulate matter (PM2.5) concentrations have declined in recent years across China. However, PM2.5 exposure remains high, ozone (O3) exposure is increasing, and the public health impacts are substantial. We used emulators to explore how emission changes (averaged per sector over all species) have contributed to changes in air quality and public health in China over 2010–2020. We show that PM2.5 exposure peaked in 2012 at 52.8 μg m−3, with contributions of 31% from industry and 22% from residential emissions. In 2020, PM2.5 exposure declined by 36% to 33.5 μg m−3, where the contributions from industry and residential sources reduced to 15% and 17%, respectively. The PM2.5 disease burden decreased by only 9% over 2012 where the contributions from industry and residential sources reduced to 15% and 17%, respectively 2020, partly due to an aging population with greater susceptibility to air pollution. Most of the reduction in PM2.5 exposure and associated public health benefits occurred due to reductions in industrial (58%) and residential (29%) emissions. Reducing national PM2.5 exposure below the World Health Organization Interim Target 2 (25 μg m−3) would require a further 80% reduction in residential and industrial emissions, highlighting the challenges that remain to improve air quality in China. We used emulators of long‐term air quality in China to estimate the emission sector impacts on air pollution and health over 2010–2020 PM2.5 exposure peaked in 2012 at 52.8 μg m−3, primarily from industrial (31%) and residential (22%) emissions PM2.5 exposure reduced by 36% in 2020, reducing the disease burden by 9% mostly from lower industrial (58%) and residential (29%) emissions