Distribution, sources and health risk of PAHs in urban air-conditioning dust from Hefei, East China

doi:10.1016/j.ecoenv.2020.110442

CORC > 地球环境研究所 > 中国科学院地球环境研究所 > 粉尘与环境研究室

	Distribution, sources and health risk of PAHs in urban air-conditioning dust from Hefei, East China
	Shen, Mengchen 1,2; Liu, Guijian 1,2; Yin, Hao 1,2; Zhou, Li 1,2
刊名	ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
	2020-05-01
卷号	194 页码:9
关键词	Air-conditioning dust Polycyclic aromatic hydrocarbons Distribution Source analysis Carcinogenic risk assessment
ISSN号	0147-6513
DOI	10.1016/j.ecoenv.2020.110442
通讯作者	Liu, Guijian(lgj@ustc.edu.cn)
英文摘要	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.
资助项目	National Natural Science Foundation of China[41672144] ; Key Research and Development Projects of Anhui Province[1804b06020358]
WOS关键词	POLYCYCLIC AROMATIC-HYDROCARBONS ; EQUIVALENCY FACTORS TEFS ; SETTLED HOUSE-DUST ; SOURCE APPORTIONMENT ; INDOOR AIR ; INDUSTRIAL-CITY ; STREET DUST ; EXPOSURE ; POLLUTANTS ; VENTILATION
WOS研究方向	Environmental Sciences & Ecology ; Toxicology
语种	英语
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
WOS记录号	WOS:000522141700056
资助机构	National Natural Science Foundation of China ; Key Research and Development Projects of Anhui Province
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/12511]
专题	地球环境研究所_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.