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Vertical distributions of tropospheric SO2 based on MAX-DOAS observations: Investigating the impacts of regional transport at different heights in the boundary layer

文献类型：期刊论文

作者Hong, Qianqian2; Liu, Cheng1,3,4,6; Hu, Qihou4; Xing, Chengzhi5; Tan, Wei4; Liu, Ting5; Liu, Jianguo3,4
刊名JOURNAL OF ENVIRONMENTAL SCIENCES
出版日期2021-05-01
卷号103
关键词Sulfur dioxide MAX-DOAS Vertical distribution Regional transport
ISSN号1001-0742
DOI10.1016/j.jes.2020.09.036
通讯作者Liu, Cheng(chliu81@ustc.edu.cn) ; Hu, Qihou(qhhu@aiofm.ac.cn)
英文摘要Information on the vertical distribution of air pollutants is essential for understanding their spatiotemporal evolution underlying urban atmospheric environment. This paper presents the SO2 profiles based on ground-based Multi-Axis Differential Optical Absorption Spectroscopy (MAX-DOAS) measurements from March 2018 to February 2019 in Hefei, East China. SO2 decrease rapidly with increasing heights in the warm season, while lifted layers were observed in the cold season, indicating accumulation or long-range transport of SO2 in different seasons might occur at different heights. The diurnal variations of SO2 were roughly consistent for all four seasons, exhibiting the minimum at noon and higher values in the morning and late afternoon. Lifted layers of SO2 were observed in the morning for fall and winter, implying the accumulation or transport of SO2 in the morning mainly occurred at the top of the boundary layer. The bivariate polar plots showed that weighted SO2 concentrations in the lower altitude were weakly dependent on wind, but in the middle and upper altitudes, higher weighted SO2 concentrations were observed under conditions of middle-high wind speed. Concentration weighted trajectory (CWT) analysis suggested that potential sources of SO2 in spring and summer were local and transported mainly occurred in the lower altitude from southern and eastern areas; while in fall and winter, SO2 concentrations were deeply affected by long-range transport from northwestern and northern polluted regions in the middle and upper altitudes. Our findings provide new insight into the impacts of regional transport at different heights in the boundary layer on SO2 pollution. (C) 2020 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
WOS关键词ABSORPTION CROSS-SECTIONS ; YANGTZE-RIVER DELTA ; NORTH CHINA PLAIN ; METEOROLOGICAL CONDITIONS ; TEMPERATURE-DEPENDENCE ; AIR-POLLUTION ; RURAL SITE ; 000 CM(-1) ; NO2 ; EMISSIONS
资助项目National Key Research and Development Program of China[2017YFC0210002] ; National Key Research and Development Program of China[2018YFC0213104] ; National Key Research and Development Program of China[2016YFC0203302] ; National Natural Science Foundation of China[41722501] ; National Natural Science Foundation of China[51778596] ; National Natural Science Foundation of China[41977184] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA23020301] ; National Key Project for Causes and Control of Heavy Air Pollution[DQGG0102] ; National Key Project for Causes and Control of Heavy Air Pollution[DQGG0205] ; Major Projects of High Resolution Earth Observation Systems of National Science and Technology[05-Y30B01-9001-19/20-3] ; Fundamental Research Funds for the Central Universities[JUSRP12042]
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000630090400012
出版者SCIENCE PRESS
资助机构National Key Research and Development Program of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Key Project for Causes and Control of Heavy Air Pollution ; Major Projects of High Resolution Earth Observation Systems of National Science and Technology ; Fundamental Research Funds for the Central Universities
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/121394]  
专题中国科学院合肥物质科学研究院
通讯作者Liu, Cheng; Hu, Qihou
作者单位1.Univ Sci & Technol China, Dept Precis Machinery & Precis Instrumentat, Hefei 230026, Peoples R China
2.Jiangnan Univ, Sch Environm & Civil Engn, Wuxi 214122, Jiangsu, Peoples R China
3.Chinese Acad Sci, Ctr Excellence Reg Atmospher Environm, Inst Urban Environm, Xiamen 361021, Peoples R China
4.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Hefei Inst Phys Sci, Key Lab Environm Opt & Technol, Hefei 230031, Peoples R China
5.Univ Sci & Technol China, Sch Earth & Space Sci, Hefei 230026, Peoples R China
6.Univ Sci & Technol China, Anhui Prov Key Lab Polar Environm & Global Change, Hefei 230026, Peoples R China
推荐引用方式
GB/T 7714		 Hong, Qianqian,Liu, Cheng,Hu, Qihou,et al. Vertical distributions of tropospheric SO2 based on MAX-DOAS observations: Investigating the impacts of regional transport at different heights in the boundary layer[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2021,103.
APA Hong, Qianqian.,Liu, Cheng.,Hu, Qihou.,Xing, Chengzhi.,Tan, Wei.,...&Liu, Jianguo.(2021).Vertical distributions of tropospheric SO2 based on MAX-DOAS observations: Investigating the impacts of regional transport at different heights in the boundary layer.JOURNAL OF ENVIRONMENTAL SCIENCES,103.
MLA Hong, Qianqian,et al."Vertical distributions of tropospheric SO2 based on MAX-DOAS observations: Investigating the impacts of regional transport at different heights in the boundary layer".JOURNAL OF ENVIRONMENTAL SCIENCES 103(2021).

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来源：合肥物质科学研究院

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