气候变化领域集成服务门户(CCPortal): Risk evaluation of environmentally persistent free radicals in airborne particulate matter and influence of atmospheric factors

CCPortal

DOI	10.1016/j.ecoenv.2020.110571
	Risk evaluation of environmentally persistent free radicals in airborne particulate matter and influence of atmospheric factors
	Xu, Yang; Yang, Lili; Wang, Xiaoping; Zheng, Minghui; Li, Cui; Zhang, Aiqian; Fu, Jianjie; Yang, Yuanping; Qin, Linjun; Liu, Xiaoyun; Liu, Guorui
通讯作者	Liu, GR (通讯作者)
发表日期	2020
ISSN	0147-6513
EISSN	1090-2414
卷号	196
英文摘要	Environmentally persistent free radicals (EPFRs) was considered unrecognized composition of air pollutants and might help explain the long-standing medical mystery of why non-smokers develop tobacco-related diseases like lung cancer. EPFRs in airborne fine particulate matter (PM2.5) can induce oxidative and DNA damage when inhaled. We assessed the inhalation risk of EPFRs in PM2.5 and factors influencing this risk in Beijing as a large city with frequent haze events. The average concentration of EPFRs in PM2.5 was 6.00x10(17) spins/m(3) in spring, autumn, and winter; lower concentrations were recorded in the summer. To estimate the daily inhalation risk of EPFRs in PM2.5, we used the equivalent EPFRs in cigarette tar. The average daily inhalation exposure of EPFRs in PM2.5 was estimated to be the equivalent of 33.1 cigarette tar EPFRs per day (range: 0.53-226.9) during both haze and non-haze days. The major factors influencing EPFR concentrations in the atmosphere were precipitation and humidity, which reduced airborne concentrations. Levels of PM2.5 and carbon monoxide were positively correlated with EPFR concentrations. The health risks of inhaling airborne EPFRs could be significant and should be recognized and quantified.
关键词	OXYGEN SPECIES ROS RESONANCE STABILIZATION ANTHRACENE MECHANISM QUINONES EPFRS PM2.5
英文关键词	Environmentally persistent free radicals; Airborne fine particulate matter; Daily inhalation risk; Air pollution; Haze days
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Toxicology
WOS类目	Environmental Sciences ; Toxicology
WOS记录号	WOS:000525763800045
来源期刊	ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259773
推荐引用方式 GB/T 7714	Xu, Yang,Yang, Lili,Wang, Xiaoping,et al. Risk evaluation of environmentally persistent free radicals in airborne particulate matter and influence of atmospheric factors[J]. 中国科学院青藏高原研究所,2020,196.
APA	Xu, Yang.,Yang, Lili.,Wang, Xiaoping.,Zheng, Minghui.,Li, Cui.,...&Liu, Guorui.(2020).Risk evaluation of environmentally persistent free radicals in airborne particulate matter and influence of atmospheric factors.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,196.
MLA	Xu, Yang,et al."Risk evaluation of environmentally persistent free radicals in airborne particulate matter and influence of atmospheric factors".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 196(2020).