Knowledge Management System Of Institute of Earth Environment, CAS
Seasonal Variation and Health Risk Assessment of Heavy Metals in PM2.5 during Winter and Summer over Xi'an, China | |
Liu, Pingping1,2; Lei, Yali1; Ren, Huarui1; Gao, Jinjin1; Xu, Hongmei1; Shen, Zhenxing1,2; Zhang, Qian1; Zheng, Chunli1; Liu, Hongxia1; Zhang, Renjian3; Pan, Hua1 | |
2017-05-01 | |
发表期刊 | ATMOSPHERE |
卷号 | 8期号:5 |
文章类型 | Article |
摘要 | In this study, 24 h PM2.5 (particles with an equivalent diameter equal to or below 2.5 mu m) samples were collected in winter and summer in Xi'an, Northwestern China to characterize the seasonal variations of eleven elements (As, Cd, Cr, Fe, K, Mn, Mo, Pb, Ni, Zn, and Cu) and to evaluate their health risks by using the US EPA (U.S. Environmental Protection Agency) method. Mass concentrations of the elements (except Ni) in winter were much higher than those in summer, with similar variations for both seasons. The levels of elements followed a decreasing order of K > Zn > Fe > Pb > Cr > As > Mn > Cu > Mo > Ni > Cd. According to the enrichment factor (EF) analysis, the highest EF value for Cd inferred that it should be linked with the metal smelting and other anthropogenic sources. In contrast, the EF values of K and Mn (1 < EF < 5) suggested that they were influenced by both natural and anthropogenic sources. The daily average exposure dose for children and adults by different exposure pathways were both ingestion > dermal contact > inhalation. The non-cancer risks for different exposure pathways showed different orders. The non-cancer risks (hazard quotients) were lower than the average risk threshold (1.0) except for As, Pb, and Cr, which require greater attention. Elements of As and Cr were higher than the cancer risk threshold value (1 x 10(-6)), indicating that the cancer risks of PM2.5 elements in Xi'an should be a concern. |
关键词 | Pm2.5 Metals Enrichment Factor Non-cancer Risk Cancer Risk |
WOS标题词 | Science & Technology ; Physical Sciences |
DOI | 10.3390/atmos8050091 |
关键词[WOS] | TRACE-ELEMENTS ; MULTIVARIATE-ANALYSIS ; SOURCE IDENTIFICATION ; CHEMICAL-COMPOSITION ; PARTICULATE MATTER ; STREET DUST ; AEROSOL ; CONTAMINATION ; SOIL ; EPISODE |
收录类别 | SCI |
语种 | 英语 |
WOS研究方向 | Meteorology & Atmospheric Sciences |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS记录号 | WOS:000404059500013 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ieecas.cn/handle/361006/5446 |
专题 | 黄土与第四纪地质国家重点实验室(2010~) |
作者单位 | 1.Xi An Jiao Tong Univ, Dept Environm Sci & Engn, Xian 710049, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710061, Peoples R China 3.Chinese Acad Sci, Inst Atmospher Phys, Key Lab Reg Climate Environm Temperate East Asia, Beijing 100029, Peoples R China |
推荐引用方式 GB/T 7714 | Liu, Pingping,Lei, Yali,Ren, Huarui,et al. Seasonal Variation and Health Risk Assessment of Heavy Metals in PM2.5 during Winter and Summer over Xi'an, China[J]. ATMOSPHERE,2017,8(5). |
APA | Liu, Pingping.,Lei, Yali.,Ren, Huarui.,Gao, Jinjin.,Xu, Hongmei.,...&Pan, Hua.(2017).Seasonal Variation and Health Risk Assessment of Heavy Metals in PM2.5 during Winter and Summer over Xi'an, China.ATMOSPHERE,8(5). |
MLA | Liu, Pingping,et al."Seasonal Variation and Health Risk Assessment of Heavy Metals in PM2.5 during Winter and Summer over Xi'an, China".ATMOSPHERE 8.5(2017). |
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文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
Seasonal Variation a(811KB) | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 请求全文 |
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