气候变化领域集成服务门户(CCPortal): Long-term ambient SO2 concentration and its exposure risk across China inferred from OMI observations from 2005 to 2018

CCPortal

DOI	10.1016/j.atmosres.2020.105150
	Long-term ambient SO2 concentration and its exposure risk across China inferred from OMI observations from 2005 to 2018
	Zhang X.; Wang Z.; Cheng M.; Wu X.; Zhan N.; Xu J.
发表日期	2021
ISSN	0169-8095
卷号	247
英文摘要	Long-term trends in the ambient SO2 concentrations across China from 2005 to 2018 were estimated using Ozone Monitoring Instrument (OMI) SO2 columns and an atmospheric SO2 profile simulated by the Model for Ozone And Related Chemical Tracers (MOZART)-4. The estimated ground-level SO2 concentrations were in strong agreement with the ground observations (R = 0.86, root-mean-square error = 10.49 μg/m3, relative prediction error = 19%). From 2005 to 2018, the average ground-level SO2 concentration ranged from 0.97 to 106.41 μg/m3 across China, with higher values in eastern China than in western China. Considering the uneven distribution of SO2 concentration and population across China, the population-weighted SO2 concentration was estimated to be 20.30 μg/m3 on a national scale. The population-weighted SO2 levels showed decreasing trends, and the absolute values of the decreasing trend peaked in winter (1.41 μg/m3 per year), followed by those in autumn (0.92 μg/m3 per year), spring (0.74 μg/m3 per year) and summer (0.75 μg/m3 per year) from 2005 to 2018. Although the SO2 exposure risk in 2018 decreased significantly from 2005 on a national scale, 80% and 17% of people still faced a high SO2 exposure risk (higher than 20 μg/m3) in the North China Plain and Northwest China, respectively. © 2020 Elsevier B.V.
英文关键词	China; MOZART; OMI; SO2 exposure risk
语种	英语
scopus关键词	Mean square error; Ozone; Scales (weighing instruments); Absolute values; Chemical tracers; Ground observations; Long-term trend; North China Plain; Ozone monitoring instruments; Prediction errors; Root mean square errors; Ultraviolet spectrometers; air quality; ambient air; atmospheric pollution; concentration (composition); ground-based measurement; pollution effect; pollution exposure; risk assessment; sulfur dioxide; temporal variation; trend analysis; China
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/141765
作者单位	International Institute for Earth System Science, Nanjing University, Nanjing, 210023, China; Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing, 210023, China; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Science, Beijing, 10012, China; Institute of Remote Sensing and Earth Science, Hangzhou Normal University, Hangzhou, 311121, China
推荐引用方式 GB/T 7714	Zhang X.,Wang Z.,Cheng M.,et al. Long-term ambient SO2 concentration and its exposure risk across China inferred from OMI observations from 2005 to 2018[J],2021,247.
APA	Zhang X.,Wang Z.,Cheng M.,Wu X.,Zhan N.,&Xu J..(2021).Long-term ambient SO2 concentration and its exposure risk across China inferred from OMI observations from 2005 to 2018.Atmospheric Research,247.
MLA	Zhang X.,et al."Long-term ambient SO2 concentration and its exposure risk across China inferred from OMI observations from 2005 to 2018".Atmospheric Research 247(2021).