Chen, Qingcai1; Sun, Haoyao1; Song, Wenhuai2; Cao, Fang2; Tian, Chongguo3
; Zhang, Yan-Lin2发表期刊ATMOSPHERIC CHEMISTRY AND PHYSICS
ISSN1680-7316
2020-11-27
卷号20期号:22页码:14407-14417
DOI10.5194/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
收录类别SCI
语种英语
关键词[WOS]ELECTRON-PARAMAGNETIC-RESONANCE; AIRBORNE PARTICULATE MATTER; SOURCE APPORTIONMENT; CIGARETTE-SMOKE; SPIN-RESONANCE; PARTICLE-SIZE; BROWN CARBON; URBAN; MAINSTREAM; COMBUSTION
研究领域[WOS]Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences
WOS记录号WOS:000593752100003
引用统计被引频次：6[WOS][WOS记录][WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/27511
专题中科院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
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 7714Chen, 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.
APAChen, 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.
MLAChen, 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.
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