气候变化领域集成服务门户(CCPortal): Occurrence and source apportionment of perfluoroalkyl acids (PFAAs) in the atmosphere in China

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DOI	10.5194/acp-19-14107-2019
	Occurrence and source apportionment of perfluoroalkyl acids (PFAAs) in the atmosphere in China
	Han D.; Ma Y.; Huang C.; Zhang X.; Xu H.; Zhou Y.; Liang S.; Chen X.; Huang X.; Liao H.; Fu S.; Hu X.; Cheng J.
发表日期	2019
ISSN	16807316
起始页码	14107
结束页码	14117
卷号	19 期号:22
英文摘要	Perfluoroalkyl acids (PFAAs) are a form of toxic pollutant that can be transported across the globe and accumulated in the bodies of wildlife and humans. A nationwide geographical investigation considering atmospheric PFAAs via a passive air sampler (PAS) based on XAD (a styrene-divinylbenzene copolymer) was conducted in 23 different provinces/municipalities/autonomous regions in China, which provides an excellent chance to investigate their occurrences, spatial trends, and potential sources. The total atmospheric concentrations of 13 PFAAs (n D 268) were 6.19-292.57 pg m-3, with an average value of 39:84 ± 28:08 pg m-3, which were higher than other urban levels but lower than point source measurements. Perfluorooctanoic acid (PFOA) was the dominant PFAA (20.6 %), followed by perfluorohexanoic acid (PFHxA), perfluorooctane sulfonate (PFOS), and perfluoroheptanoic acid (PFPeA). An increasing seasonal trend of PFAA concentrations was shown as summer < autumn < spring < winter, which may be initiated by stagnant meteorological conditions. Spatially, the content of PFAAs displayed a declining gradient trend of central China > northern China > eastern China > north-eastern China > southwestern China > north-western China > southern China, and Henan contributed the largest proportion of PFAAs. Four sources of PFAAs were identified using a positive matrix factorization (PMF) model, including PFOS-based products (26.1 %), products based on PFOA and perfluorononanoic acid (PFNA; 36.6 %), degradation products of fluorotelomer-based products (15.5 %), and an unknown source (21.8 %). © 2019 Author(s).
语种	英语
scopus关键词	atmospheric pollution; carboxylic acid; concentration (composition); geographical distribution; source apportionment; toxic substance; trend analysis; China
来源期刊	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/144029
作者单位	School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China; State Environ. Protect. Key Lab. of the Formation and Prevention of Urban Air Pollution Complex, Shanghai Academy of Environmental Sciences, Shanghai, 200233, China
推荐引用方式 GB/T 7714	Han D.,Ma Y.,Huang C.,et al. Occurrence and source apportionment of perfluoroalkyl acids (PFAAs) in the atmosphere in China[J],2019,19(22).
APA	Han D..,Ma Y..,Huang C..,Zhang X..,Xu H..,...&Cheng J..(2019).Occurrence and source apportionment of perfluoroalkyl acids (PFAAs) in the atmosphere in China.Atmospheric Chemistry and Physics,19(22).
MLA	Han D.,et al."Occurrence and source apportionment of perfluoroalkyl acids (PFAAs) in the atmosphere in China".Atmospheric Chemistry and Physics 19.22(2019).