Vertical profiles and regional transport of ozone and aerosols in the Yangtze River Delta during the 2016 G20 summit based on multiple lidars

doi:10.1016/j.atmosenv.2021.118506

	Vertical profiles and regional transport of ozone and aerosols in the Yangtze River Delta during the 2016 G20 summit based on multiple lidars
	Wang, Xinqi 1,3; Xiang, Yan 1,3; Liu, Wentao 2; Lv, Lihui 1,3; Dong, Yunsheng 4; Fan, Guangqiang 4; Ou, Jinping 1,3; Zhang, Tianshu 1,3,4
刊名	ATMOSPHERIC ENVIRONMENT
	2021-08-15
卷号	259
关键词	PM2.5 Ozone Lidar WRF-Chem G20 Yangtze River Delta
ISSN号	1352-2310
DOI	10.1016/j.atmosenv.2021.118506
通讯作者	Xiang, Yan(yxiang@ahu.edu.cn) ; Zhang, Tianshu(tszhang@aiofm.ac.cn)
英文摘要	The G20 summit of 2016 was held from September 4-5, and a series of stringent emission reduction measures were taken in Hangzhou, an economically developed city in the Yangtze River Delta (YRD), and its surrounding regions. This study analyzed the vertical and regional pollutant distributions and their interactions in Hangzhou during the summit. The results show that the concentration of PM2.5 decreased and the concentration of ozone increased. The average hourly PM2.5 concentration decreased by 43.67% during the control period compared with afterward, and PM2.5 transport was mainly from southern part of Anhui and southeastern part of Zhejiang. There were four occurrences of heavy ozone pollution during the observation period, and the maximum value reached 130.56 ppb. Vertical and horizontal transport mainly occurred at a height of 1-2 km. The Weather Research and Forecasting (WRF-Chem) model demonstrated that the most severe ozone pollution was affected by the northeast wind, and the downdraft created a continuous high concentration of ozone pollution. The correlation between the ozone concentration and the aerosol extinction coefficient was negative below 0.84 km and positive around 0.84-2 km.
资助项目	National Natural Science Foundation of China[42005106] ; National Natural Science Foundation of China[41941011] ; National Key Project of MOST[2017YFC0213002] ; National Key Project of MOST[2018YFC0213101] ; National Key Project of MOST[2018YFC0213106] ; National Key Project of MOST[2018YFC0213201] ; Major science and technology projects of Anhui Province[18030801111] ; Natural Science Foundation of Anhui Province, China[1908085QD160] ; Natural Science Foundation of Anhui Province, China[1908085QD170] ; Doctoral Scientific Research Foundation of Anhui University[Y040418190] ; Key Research and Development Program of Anhui Province[202004i07020002]
WOS关键词	BOUNDARY-LAYER ; AIR-QUALITY ; SOURCE APPORTIONMENT ; NORTH CHINA ; PM2.5 ; MODEL ; SITE ; RESOLUTION ; EVOLUTION ; TRACERS
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000674473200006
资助机构	National Natural Science Foundation of China ; National Key Project of MOST ; Major science and technology projects of Anhui Province ; Natural Science Foundation of Anhui Province, China ; Doctoral Scientific Research Foundation of Anhui University ; Key Research and Development Program of Anhui Province
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/123245]
专题	中国科学院合肥物质科学研究院
通讯作者	Xiang, Yan; Zhang, Tianshu
作者单位	1.Anhui Univ, Inst Informat Technol, Hefei 230601, Peoples R China 2.Anhui Wanxin Environm Technol Co Ltd, Hefei 230093, Peoples R China 3.Anhui Univ, Inst Phys Sci, Hefei 230601, Peoples R China 4.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Environm Opt & Technol, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xinqi,Xiang, Yan,Liu, Wentao,et al. Vertical profiles and regional transport of ozone and aerosols in the Yangtze River Delta during the 2016 G20 summit based on multiple lidars[J]. ATMOSPHERIC ENVIRONMENT,2021,259.
APA	Wang, Xinqi.,Xiang, Yan.,Liu, Wentao.,Lv, Lihui.,Dong, Yunsheng.,...&Zhang, Tianshu.(2021).Vertical profiles and regional transport of ozone and aerosols in the Yangtze River Delta during the 2016 G20 summit based on multiple lidars.ATMOSPHERIC ENVIRONMENT,259.
MLA	Wang, Xinqi,et al."Vertical profiles and regional transport of ozone and aerosols in the Yangtze River Delta during the 2016 G20 summit based on multiple lidars".ATMOSPHERIC ENVIRONMENT 259(2021).