Particle-size distribution of airborne poly- and perfluorinated alkyl substances

被引：49

作者：

Dreyer, A. ^{[1
,2
]}

Kirchgeorg, T. ^{[2
]}

Weinberg, I. ^{[2
]}

Matthias, V. ^{[2
]}

机构：

[1] Eurofins GfA, Air Monitoring, D-21107 Hamburg, Germany

[2] Helmhotz Zentrum Geesthacht, Inst Coastal Res, D-21502 Geesthacht, Germany

来源：

CHEMOSPHERE | 2015年 / 129卷

关键词：

PFOA; PFOS; Aerosol; Impactor; PERFLUOROOCTANOIC ACID PFOA; POLYCYCLIC AROMATIC-HYDROCARBONS; EXPERIMENTAL PK(A) DETERMINATION; MEASURED PARTITIONING PHENOMENA; POLYBROMINATED DIPHENYL ETHERS; WATER TREATMENT-PLANT; DIBENZO-P-DIOXINS; PERFLUOROCARBOXYLIC ACIDS; CARBOXYLIC-ACIDS; CONCENTRATION-DEPENDENCE;

D O I：

10.1016/j.chemosphere.2014.06.069

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Eleven particle-size-segregated samples were taken to investigate the particle-size distribution of perfluoroalkyl substances (PFASs) using two five stage impactors in parallel. Samples were extracted with methanol and detected by HPLC/MS-MS. Investigation yielded reproducible results for the parallel samples over the entire sampling period. Particle-size distribution varied between perfluorooctane sulfonate (PFOS) and other perfluoroalkyl sulfonates (PFSAs), perfluorooctane carboxylate (PFOA) and other perfluoroalkyl carboxylates (PFCAs) and n-methyl-perfluorooctanesulfonamido ethanol (MeFOSE). Whereas PFOA and MeFOSE were predominantly observed in smallest size fraction (<0.14 mu m), maximum PFOS mass fractions were observed in the coarser size fractions between 1.38 and 3.81 mu m. The reason for this different behaviour remained unclear and indicated a complex atmospheric PFAS processing and sampling which should be further investigated and optimized, respectively. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：142 / 149

页数：8

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