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深圳市大气中全氟化合物的残留特征 被引量:21

Residue Characteristics of Perfluorinated Compounds in the Atmosphere of Shenzhen
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摘要 为探究深圳市大气中全氟化合物(perfluorinated compounds,PFCs)的残留特征,基于负载XAD-4的PUF膜被动采样器采集了2014年11月1日至2015年1月31日深圳市12个位点的大气样品,分析了大气中7种挥发性PFCs和15种离子型PFCs的含量及分布特征.结果表明,深圳市大气中ΣPFCs平均浓度为79.0 pg·m^-3(23.7-157 pg·m^-3),以挥发性PFCs为主.8∶2氟调聚醇(fluorotelomer alcohol,FTOH)、6∶2 FTOH和全氟戊酸(perfluoropentanoic acid,PFPeA)、全氟辛酸(perfluorooctane acid,PFOA)分别是挥发性和离子型PFCs的主要组分.深圳市大气中挥发性和离子型PFCs的空间分布相同,均呈西北高东南低的态势.此外,6∶2 FTOHs、8∶2 FTOHs、PFPeA、PFHx A和PFOA与PM2.5、PM10呈正相关(P〈0.05,P〈0.01),而与PM10的相关性更显著. In order to explore the residual characteristics of perfluorinated compounds( PFCs) in the atmosphere of Shenzhen,passive air samplers consisting of polyurethane foam( PUF) disks impregnated with XAD-4 power were deployed at 12 sites in Shenzhen from November 2014 to February 2015. Seven volatile and fifteen ionic PFCs were analyzed. The results indicated that Σ PFCs concentration ranged from 23. 7 pg·m-(-3) to 157 pg·m^-3( mean: 79. 0 pg·m^-3),dominated by volatile PFCs,with 8 ∶ 2 FTOH,6 ∶ 2FTOH,PFPeA,PFOA being the dominant compounds. The spatial distribution of volatile and ionic PFCs concentrations was the same,displaying the characteristic of "the northwest being higher than the southeast ". Furthermore,the concentrations of 6∶ 2 FTOHs,8∶ 2FTOHs,PFPeA,PFHx A and PFOA had positive correlations with PM2.5and PM10( P〈0. 05,P〈 0. 01) and were more positively correlated with the levels of PM10 than those of PM2.5.
出处 《环境科学》 EI CAS CSCD 北大核心 2016年第4期1240-1247,共8页 Environmental Science
基金 国家自然科学基金项目(11275130)
关键词 全氟化合物 大气 被动采样器 氟调聚醇 大气颗粒物 perfluorinated compounds(PFCs) atmosphere passive air sampler fluorotelomer alcohols(FTOHs) atmospheric particulates
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  • 1Wallington T J, Hurley M D, Xia J, et al. Formation of CTF15 COOH (PFOA) and other perfluorocarboxylic acids during the atmospheric oxidation of 8 : 2 fluorotelomer alcohol [ J ]. Environmental Science & Technology, 2006, 40 (3) : 924-930.
  • 2Schenker U, Scheringer M, MacLeod M, et al. Contribution of volatile precursor substances to the flux of perfluorooctanoate to the Arctic[J]. Environmental Science & Technology, 2008, 42 (10) : 3710-3716.
  • 3Stock N L, Lau F K, Ellis D A, et al. Polyfluorinated telomer alcohols and sulfonamides in the North American Troposphere [J]. Environmental Science & Technology, 2004, 38(4) : 991- 996.
  • 4Chaemfa G, Barber J L, Huber S, et al, Screening for PFOS and PFOA in European air using passive samplers [ J ]. Journal of Environmental Monitoring, 2010, 12 ( 5 ) : 1100-1109.
  • 5Barber J L, Berger U, Chaemfa C, et al. Analysis of per-and polyfluorinated alkyl substances in air samples from Northwest Europe [ J ]. Journal of Environmental Monitoring, 2007, 9 ( 6 ) : 530-541.
  • 6Dreyer A, Matthias V, Temme C, et al. Annual time series of air concentrations of polyfluorinated compounds[ J]. Environmental Science & Technology, 2009, 43 (11) : 4029-4036.
  • 7Langer Y, Dreyer A, Ebinghaus R, et al. Polyfluorinated compounds in residential and nonresidential indoor air [ J ]. Environmental Science & Technology, 2010, 44 ( 21 ) : 8075- 8081.
  • 8Shoeib M, Harner T, Ikonomou M, et al. Indoor and outdoor air concentrations and phase partitioning of perfluoroalkyl sulfonamides and polybrominated diphenyl ethers [ J ]. Environmental Science & Technology, 2004, 38 (5): 1313- 1320.
  • 9Genualdi S, Lee S C, Shoeib M, et al. Global pilot study of legacy and emerging persistent organic pollutants using sorbent- impregnated polyurethane foam disk passive air samplers [ J ]. Environmental Science & Technology, 2010, 44 (14) : 5534- 5539.
  • 10Oono S, Harada K H, Mahmoud M A M, et al. Current levels of airborne polyfluorinated telomers in Japan [ J ]. Chemosphere, 2008, 73(6) : 932-937.

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