气候变化领域集成服务门户(CCPortal): Impacts of emission changes in China from 2010 to 2017 on domestic and intercontinental air quality and health effect

CCPortal

DOI	10.5194/acp-21-16051-2021
	Impacts of emission changes in China from 2010 to 2017 on domestic and intercontinental air quality and health effect
	Zhang Y.; Shindell D.; Seltzer K.; Shen L.; Lamarque J.-F.; Zhang Q.; Zheng B.; Xing J.; Jiang Z.; Zhang L.
发表日期	2021
ISSN	1680-7316
起始页码	16051
结束页码	16065
卷号	21 期号:20
英文摘要	China has experienced dramatic changes in emissions since 2010, which accelerated following the implementation of the Clean Air Action program in 2013. These changes have resulted in significant air quality improvements that are reflected in observations from both surface networks and satellite observations. Air pollutants, such as PM2.5, surface ozone, and their precursors, have long enough lifetimes in the troposphere to be easily transported downwind. Emission changes in China will thus not only change the domestic air quality but will also affect the air quality in other regions. In this study, we use a global chemistry transport model (CAM-chem) to simulate the influence of Chinese emission changes from 2010 to 2017 on both domestic and foreign air quality. We then quantify the changes in air-pollution-associated (including both PM2.5 and O3) premature mortality burdens at regional and global scales. Within our simulation period, the population-weighted annual PM2.5 concentration in China peaks in 2011 (94.1g€¯μgm-3) and decreases to 69.8g€¯μgm-3 by 2017. These estimated national PM2.5 concentration changes in China are comparable with previous studies using fine-resolution regional models, though our model tends to overestimate PM2.5 from 2013 to 2017 when evaluated with surface observations. Relative to 2010, emission changes in China increased the global PM2.5-associated premature mortality burdens through 2013, among which a majority of the changes (g1/4g€¯93g€¯%) occurred in China. The sharp emission decreases after 2013 generated significant benefits for human health. By 2017, emission changes in China reduced premature deaths associated with PM2.5 by 108g€¯800 (92g€¯800-124g€¯800)g€¯deaths per year globally, relative to 2010, among which 92g€¯% were realized in China. In contrast, the population-weighted, annually averaged maximum daily 8g€¯h ozone concentration peaked in 2014 and did not reach 2010 levels by 2017. As such, O3 generated nearly 8500 (6500-9900) more premature deaths per year in 2017 compared to 2010. Downwind regions, such as South Korea, Japan, and the United States, generally experienced O3 improvements following 2013 due to the decreased export of ozone and its precursors. Overall, we conclude that the sharp emission reductions in China over the past decade have generated substantial benefits for air quality that have reduced premature deaths associated with air pollution at a global scale. © 2021 Yuqiang Zhang et al.
语种	英语
scopus关键词	air quality; atmospheric pollution; concentration (composition); emission; health impact; particulate matter; China
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/246468
作者单位	Nicholas School of the Environment, Duke University, Durham, NC, United States; Duke Global Health Institute, Duke University, Durham, NC, United States; Porter School of the Environment and Earth Sciences, Tel Aviv University, Tel Aviv, Israel; John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, United States; NCAR/UCAR, Boulder, CO 80301, United States; Department of Earth System Science, Tsinghua University, Beijing, 100084, China; Institute of Environment and Ecology, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China; State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, 100084, China; School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui, 230026, China; State Key Laboratory of Pollution Controlg and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China
推荐引用方式 GB/T 7714	Zhang Y.,Shindell D.,Seltzer K.,et al. Impacts of emission changes in China from 2010 to 2017 on domestic and intercontinental air quality and health effect[J],2021,21(20).
APA	Zhang Y..,Shindell D..,Seltzer K..,Shen L..,Lamarque J.-F..,...&Zhang L..(2021).Impacts of emission changes in China from 2010 to 2017 on domestic and intercontinental air quality and health effect.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(20).
MLA	Zhang Y.,et al."Impacts of emission changes in China from 2010 to 2017 on domestic and intercontinental air quality and health effect".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.20(2021).