Per- and Polyfluoroalkyl Substances in the Air Particles of Asia: Levels, Seasonality, and Size-Dependent Distribution

Per- and Polyfluoroalkyl Substances in the Air Particles of Asia: Levels, Seasonality, and Size-Dependent Distribution

Information regarding the size-dependent distribution of per- and polyfluoroalkyl substances (PFAS) in atmospheric particulate matter (PM) is very limited. In this study, 248 size-specific PM samples were collected from 9 Asian cities using a portable 4-stage cascade impactor for the analysis of PFA...

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Veröffentlicht in:Environmental science & technology 2020-11, Vol.54 (22), p.14182-14191
Hauptverfasser: Lin, Huiju, Taniyasu, Sachi, Yamazaki, Eriko, Wei, Si, Wang, Xinhong, Gai, Nan, Kim, Jin Hyo, Eun, Heesoo, Lam, Paul K. S, Yamashita, Nobuyoshi
Format: Artikel
Sprache:eng
Schlagworte:
Air masses
Alkanesulfonic Acids - analysis
Anthropogenic Impacts on the Atmosphere
Asia
China
Cities
Dimers
Emission analysis
Fluorocarbons - analysis
Geographical distribution
India
Japan
Particulate emissions
Particulate matter
Perfluoroalkyl & polyfluoroalkyl substances
Perfluorooctane sulfonic acid
Perfluorooctanoic acid
Republic of Korea
Seasonal distribution
Seasonal variations
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Zusammenfassung:Information regarding the size-dependent distribution of per- and polyfluoroalkyl substances (PFAS) in atmospheric particulate matter (PM) is very limited. In this study, 248 size-specific PM samples were collected from 9 Asian cities using a portable 4-stage cascade impactor for the analysis of PFAS. Of the 34 investigated PFAS, perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS) were the major compounds. In particular, the emerging PFAS, hexafluoropropylene oxide dimer acid, was quantified in the PM for the first time, with concentrations ranging from
ISSN:0013-936X
1520-5851
DOI:10.1021/acs.est.0c03387