Size-resolved exposure risk of persistent free radicals (PFRs) in atmospheric aerosols and their potential sources

doi:10.5194/acp-20-14407-2020

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室 > 近岸生态与环境实验室

	Size-resolved exposure risk of persistent free radicals (PFRs) in atmospheric aerosols and their potential sources
	Chen, Qingcai 1; Sun, Haoyao 1; Song, Wenhuai 2; Cao, Fang 2; Tian, Chongguo 3; Zhang, Yan-Lin 2
刊名	ATMOSPHERIC CHEMISTRY AND PHYSICS
	2020-11-27
卷号	20 期号:22 页码:14407-14417
ISSN号	1680-7316
DOI	10.5194/acp-20-14407-2020
通讯作者	Zhang, Yan-Lin(dryanlinzhang@outlook.com)
英文摘要	Environmentally persistent free radicals (EPFRs) are a new type of substance with potential health risks. EPFRs are widely present in atmospheric particulates, but there is a limited understanding of the size-resolved health risks of these radicals. This study reports the exposure risks and source of EPFRs in atmospheric particulate matter (PM) of different particle sizes (< 10 mu m) in Linfen, a typical coalburning city in China. The type of EPFRs in fine particles (< 2.1 mu m) is different from that in coarse particles (2.1-10 mu m) in both winter and summer. However, the EPFR concentration is higher in coarse particles than in fine particles in summer, and the opposite trend is found in winter. In both seasons, combustion sources are the main sources of EPFRs, with coal combustion as the major contributor in winter, while other fuels are the major source in summer. Dust contributes part of the EPFRs, and it is mainly present in coarse particles in winter and the opposite in summer. The upper respiratory tract was found to be the area with the highest risk of exposure to EPFRs of the studied aerosols, with an exposure equivalent to that of approximately 21 cigarettes per person per day. Alveolar exposure to EPFRs is equivalent to 8 cigarettes per person per day, with combustion sources contributing the most to EPFRs in the alveoli. This study helps us to better understand the potential health risks of atmospheric PM with different particle sizes.
资助项目	National Natural Science Foundation of China[41761144056] ; National Natural Science Foundation of China[41877354] ; National Natural Science Foundation of China[41703102] ; Provincial Natural Science Foundation of Jiangsu[BK20180040] ; Natural Science Foundation of Shaanxi Province, China[2018JM4011] ; fund of Jiangsu Innovation & Entrepreneurship Team
WOS关键词	ELECTRON-PARAMAGNETIC-RESONANCE ; AIRBORNE PARTICULATE MATTER ; SOURCE APPORTIONMENT ; CIGARETTE-SMOKE ; SPIN-RESONANCE ; PARTICLE-SIZE ; BROWN CARBON ; URBAN ; MAINSTREAM ; COMBUSTION
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
语种	英语
WOS记录号	WOS:000593752100003
资助机构	National Natural Science Foundation of China ; Provincial Natural Science Foundation of Jiangsu ; Natural Science Foundation of Shaanxi Province, China ; fund of Jiangsu Innovation & Entrepreneurship Team
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/27510]
专题	烟台海岸带研究所_近岸生态与环境实验室烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
通讯作者	Zhang, Yan-Lin
作者单位	1.Shaanxi Univ Sci & Technol, Sch Environm Sci & Engn, Xian 710021, Peoples R China 2.Nanjing Univ Informat Sci & Technol, Yale NUIST Ctr Atmospher Environm, Int Joint Lab Climate & Environm Change ILCEC, Nanjing 210044, Peoples R China 3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China
推荐引用方式 GB/T 7714	Chen, Qingcai,Sun, Haoyao,Song, Wenhuai,et al. Size-resolved exposure risk of persistent free radicals (PFRs) in atmospheric aerosols and their potential sources[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2020,20(22):14407-14417.
APA	Chen, Qingcai,Sun, Haoyao,Song, Wenhuai,Cao, Fang,Tian, Chongguo,&Zhang, Yan-Lin.(2020).Size-resolved exposure risk of persistent free radicals (PFRs) in atmospheric aerosols and their potential sources.ATMOSPHERIC CHEMISTRY AND PHYSICS,20(22),14407-14417.
MLA	Chen, Qingcai,et al."Size-resolved exposure risk of persistent free radicals (PFRs) in atmospheric aerosols and their potential sources".ATMOSPHERIC CHEMISTRY AND PHYSICS 20.22(2020):14407-14417.