IEECAS OpenIR  > 黄土与第四纪地质国家重点实验室(2010~)
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
Source PublicationATMOSPHERE
Volume8Issue:5
SubtypeArticle
AbstractIn 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.
KeywordPm2.5 Metals Enrichment Factor Non-cancer Risk Cancer Risk
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.3390/atmos8050091
WOS KeywordTRACE-ELEMENTS ; MULTIVARIATE-ANALYSIS ; SOURCE IDENTIFICATION ; CHEMICAL-COMPOSITION ; PARTICULATE MATTER ; STREET DUST ; AEROSOL ; CONTAMINATION ; SOIL ; EPISODE
Indexed BySCI
Language英文
WOS Research AreaMeteorology & Atmospheric Sciences
WOS SubjectMeteorology & Atmospheric Sciences
WOS IDWOS:000404059500013
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/5446
Collection黄土与第四纪地质国家重点实验室(2010~)
Affiliation1.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
Recommended Citation
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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