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Cited 24 time in webofscience Cited 38 time in scopus
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Per- and Polyfluoroalkyl Substances in the Air Particles of Asia: Levels, Seasonality, and Size-Dependent Distribution

Authors
Lin, HuijuTaniyasu, SachiYamazaki, ErikoWei, SiWang, XinhongGai, NanKim, Jin HyoEun, HeesooLam, Paul K. S.Yamashita, Nobuyoshi
Issue Date
17-Nov-2020
Publisher
AMER CHEMICAL SOC
Citation
ENVIRONMENTAL SCIENCE & TECHNOLOGY, v.54, no.22, pp.14182 - 14191
Indexed
SCIE
SCOPUS
Journal Title
ENVIRONMENTAL SCIENCE & TECHNOLOGY
Volume
54
Number
22
Start Page
14182
End Page
14191
URI
https://scholarworks.bwise.kr/gnu/handle/sw.gnu/5923
DOI
10.1021/acs.est.0c03387
ISSN
0013-936X
Abstract
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 <0.086 to 21.5 pg/m(3). Spatially, PFOA and PFOS were the predominant compounds in China, while precursors, emerging PFAS, and short-chain PFAS dominated in India, Japan, and South Korea, respectively. Seasonal variations of PFAS may be controlled by regional climate, local or seasonal emission sources, and long-range transport of air masses. Size-dependent distribution was investigated, showing that the majority of PFAS predominantly affiliated in fine particles, while PFOS and its alternatives tended to attach on coarser particles. Moreover, PFOS distributed on specific sizes exhibited seasonal and regional dependency, while no such patterns were observed for PFOA. These findings will provide useful information on the geographical and size-dependent distribution of PFAS in the atmospheric PM.
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Kim, Jin Hyo
농업생명과학대학 (환경생명화학과)
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