Risk evaluation of environmentally persistent free radicals in airborne particulate matter and influence of atmospheric factors
文献类型：期刊论文
| 作者 | Xu, Yang; Yang, Lili; Wang, Xiaoping; Zheng, Minghui; Li, Cui; Zhang, Aiqian; Fu, Jianjie ; Yang, Yuanping; Qin, Linjun; Liu, Xiaoyun
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| 刊名 | ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
 |
| 出版日期 | 2020-06-15 |
| 卷号 | 196页码:1-9 |
| 关键词 | Environmentally persistent free radicals Airborne fine particulate matter Daily inhalation risk Air pollution Haze days |
| ISSN号 | 0147-6513 |
| 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. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/44798]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 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]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2020,196:1-9. |
| 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,196,1-9. |
| 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):1-9. |
入库方式： OAI收割
来源：生态环境研究中心
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