Characteristic analysis of continuous new particle formation events in Hefei: A case study of the May Day holiday in China

doi:10.1016/j.ecoenv.2021.112329

	Characteristic analysis of continuous new particle formation events in Hefei: A case study of the May Day holiday in China
	Ou, Jinping 2; Hu, Qihou 3; Liu, Haoran 2; Hong, Qianqian 4; Wang, Xinqi 2; Xu, Shiqi 1; Wang, Zhuang 3; Liu, Wenqing 2,3
刊名	ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
	2021-09-01
卷号	220
关键词	Continuous NPF events Health risk assessment Regional transport Hefei PM2.5
ISSN号	0147-6513
DOI	10.1016/j.ecoenv.2021.112329
通讯作者	Hu, Qihou(qhhu@aiofm.ac.cn) ; Liu, Haoran(hrl@ahu.edu.cn)
英文摘要	Studying the characteristics of new particle formation (NPF) is conducive to exploring the impact of atmospheric particulate matter on the climate, environment, and human health. The particle number size distributions (5.6-560 nm) of aerosols were measured using a fast mobility particle sizer (FMPS) from 1 to 11 May 2019. The clean atmosphere was one of the basic conditions for the occurrence of this continuous new particle formation events. It started between 9:00 and 12:00, and it mainly ended after 20:00. The growth rate (GR) and condensation sink (CS) values in Hefei were 2.98 +/- 0.97 nm.h(-1) and (3.0 +/- 0.4) x 10(-2) s(-1), respectively. Back trajectory clustering analysis revealed that the mass concentration of the air masses from the southeastern part of Henan Province and the southern part of Anhui Province surrounding the study area were relatively high. The analysis results of the potential source contribution function (PSCF) and the concentration weighted trajectory (CWT) methods show that in addition to local pollution, the long-distance transport of pollutants in the Yangtze River Delta (YRD) greatly contributed to the accumulation modal particulate concentration in Hefei. Moreover, the population affected by PM2.5 during the observation period reached 8.19 x 10(4), accounting for 1.08% to the total population in Hefei. The premature death cases associated with PM2.5 reached 8.35 x 10(2). This study is helpful to understand the main influencing factors of consecutive NPF events and the health risks of fine particles.
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 Key Research and Development Program of China[2017YFC0212800] ; National Natural Science Foundation of China[41722501] ; National Natural Science Foundation of China[51778596] ; National Natural Science Foundation of China[41977184] ; National Natural Science Foundation of China[41941011] ; Anhui Science and Technology Major Project[18030801111] ; 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] ; Natural Science Foundation of Anhui Province[1908085QD170] ; Key Research and Development Project of Anhui Province[202004i07020002]
WOS关键词	SIZE DISTRIBUTIONS ; AEROSOL ; POLLUTION ; GROWTH ; NUCLEATION ; TRANSPORT ; EPISODES ; URBAN ; SITE
WOS研究方向	Environmental Sciences & Ecology ; Toxicology
语种	英语
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
WOS记录号	WOS:000662776100004
资助机构	National Key Research and Development Program of China ; National Natural Science Foundation of China ; Anhui Science and Technology Major Project ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Key Project for Causes and Control of Heavy Air Pollution ; Natural Science Foundation of Anhui Province ; Key Research and Development Project of Anhui Province
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/123863]
专题	中国科学院合肥物质科学研究院
通讯作者	Hu, Qihou; Liu, Haoran
作者单位	1.Univ Sci & Technol China, Sch Earth & Space Sci, Hefei 230026, Peoples R China 2.Anhui Univ, Inst Phys Sci & Informat Technol, Hefei 230601, Peoples R China 3.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Hefei Inst Phys Sci, Key Lab Environm Opt & Technol, Hefei 230031, Peoples R China 4.Jiangnan Univ, Wuxi 214122, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Ou, Jinping,Hu, Qihou,Liu, Haoran,et al. Characteristic analysis of continuous new particle formation events in Hefei: A case study of the May Day holiday in China[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2021,220.
APA	Ou, Jinping.,Hu, Qihou.,Liu, Haoran.,Hong, Qianqian.,Wang, Xinqi.,...&Liu, Wenqing.(2021).Characteristic analysis of continuous new particle formation events in Hefei: A case study of the May Day holiday in China.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,220.
MLA	Ou, Jinping,et al."Characteristic analysis of continuous new particle formation events in Hefei: A case study of the May Day holiday in China".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 220(2021).