Journal
ENVIRONMENTAL POLLUTION
Volume 190, Issue -, Pages 115-122Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2014.03.030
Keywords
Perfluoroalkyl acids; PFOA; Spatial analysis; Rapid urbanization; Fluoropolymer facility
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Funding
- National Natural Science Foundation of China [41371488, 41171394]
- International Scientific Cooperation Program [2012DFA91150,]
- Key Project of the Chinese Academy of Sciences [KZZD-EW-TZ-12]
- Einstein Professor Program of the Chinese Academy of Sciences
- Canada Research Chair program
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Perfluoroallcyl acids (PFAAs) are emerging contaminants that have raised great concern in recent years. While PFAAs manufacturing becomes regulated in developed countries, production has been partly shifted to China. Eight fluoropolymer manufacturing facilities located in the South Bohai coastal region, one of the most populated areas of China, have been used to manufacture PFAA-related substances since 2001. The environmental consequence of the intensive production of PFAAs in this region remains largely unknown. We analyzed 17 PFAAs in twelve coastal rivers of this region, and found staggeringly high concentrations of perfluorooctanoic acid (PFOA) ranging from 0.96 to 4534.41 ng/L. The highest concentration was observed in the Xiaoqing River which received effluents from certain fluoropolymer facilities. Principal component analysis indicated similar sources of several perfluoroalkyl carboxylic acids (PFCAs) in all rivers, which indicated that atmospheric transport, wastewater treatment and surface runoff also acted as important supplements to direct discharge to surface water. (C) 2014 Elsevier Ltd. All rights reserved.
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