Distribution, sources and health risk of PAHs in urban air-conditioning dust from Hefei, East China | |
Shen, Mengchen1,2; Liu, Guijian1,2; Yin, Hao1,2; Zhou, Li1,2 | |
通讯作者 | Liu, Guijian(lgj@ustc.edu.cn) |
2020-05-01 | |
发表期刊 | ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY |
ISSN | 0147-6513 |
卷号 | 194页码:9 |
摘要 | In recent decades, indoor air quality (IAQ) has become one of the most important human health issues. The potential properties and potential health hazards of polycyclic aromatic hydrocarbons (PAHs) are associated with their long-term residues, bioaccumulation and semivolatility, and they can also be transferred through a variety of media, such as the atmosphere, water and soil. Dust particles from indoor and outdoor emission sources adhere to A-C filters and can represent air quality to a certain extent. However, few studies have focused on PAHs in A-C filter dust in Hefei, China. In this study, 16 PAHs were selected, dust samples were collected from A-C filters from three different functional districts, and GC-MS analysis of the samples was performed. The concentration of the Sigma 16PAHs ranged from 7.34 to 326.84 mu g g(-1), 5.07-15.34 mu g g(-1), 4.09-47.26 mu g g(-1) and 0.97-13.38 mu g g(-1) in dust samples from the Administrative District (AD), Industrial District (ID), Commercial District (CD) and Outdoors (OD), respectively. The total PAH concentration in A-C dust was much higher than that in dust deposited outdoors in the urban area. The percentage of 5-6 ring PAHs accounted for more than 70% of the Sigma 16PAHs, which shows that the PAHs in A-C dust mainly come from pyrolysis rather than a diagenetic source. Principal component analysis (PCA) and diagnostic ratios were used in a source analysis, and the results indicated that the main PAHs emission sources in the different functional districts were coal, wood and biomass combustion. The incremental lifetime cancer risk (ILCR) values indicated a medium to high potential carcinogenic risk for adults and children exposed to dust with PAHs. Particularly, skin contact and ingestion of carcinogenic PAHs from dust are the major exposure pathways and present an exposure risk that is four to five orders of magnitude higher than the risk of inhalation. |
关键词 | Air-conditioning dust Polycyclic aromatic hydrocarbons Distribution Source analysis Carcinogenic risk assessment |
DOI | 10.1016/j.ecoenv.2020.110442 |
关键词[WOS] | POLYCYCLIC AROMATIC-HYDROCARBONS ; EQUIVALENCY FACTORS TEFS ; SETTLED HOUSE-DUST ; SOURCE APPORTIONMENT ; INDOOR AIR ; INDUSTRIAL-CITY ; STREET DUST ; EXPOSURE ; POLLUTANTS ; VENTILATION |
收录类别 | SCI ; SCI |
语种 | 英语 |
资助项目 | National Natural Science Foundation of China[41672144] ; Key Research and Development Projects of Anhui Province[1804b06020358] |
WOS研究方向 | Environmental Sciences & Ecology ; Toxicology |
项目资助者 | National Natural Science Foundation of China ; Key Research and Development Projects of Anhui Province |
WOS类目 | Environmental Sciences ; Toxicology |
WOS记录号 | WOS:000522141700056 |
出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ieecas.cn/handle/361006/12512 |
专题 | 粉尘与环境研究室 |
通讯作者 | Liu, Guijian |
作者单位 | 1.Univ Sci & Technol China, Sch Earth & Space Sci, CAS Key Lab Crust Mantle Mat & Environm, Hefei 230026, Anhui, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Shaanxi, Peoples R China |
推荐引用方式 GB/T 7714 | Shen, Mengchen,Liu, Guijian,Yin, Hao,et al. Distribution, sources and health risk of PAHs in urban air-conditioning dust from Hefei, East China[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2020,194:9. |
APA | Shen, Mengchen,Liu, Guijian,Yin, Hao,&Zhou, Li.(2020).Distribution, sources and health risk of PAHs in urban air-conditioning dust from Hefei, East China.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,194,9. |
MLA | Shen, Mengchen,et al."Distribution, sources and health risk of PAHs in urban air-conditioning dust from Hefei, East China".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 194(2020):9. |
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