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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
Perfluorinated compounds in surface waters from Northern China: Comparison to level of industrialization
Environment International, Volume 42, No. 1, Year 2012
Notification
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Description
Inclusion of Perfluorooctane Sulfonate (PFOS) in the Stockholm Convention because of its exemptions, has resulted in increased annual production of PFOS-containing chemicals in China to accommodate domestic and overseas demands. Accordingly, concern about environmental contamination with perfluorinated compounds (PFCs), such as PFOS, has arisen. However, little information is available on the status and trends in the distribution, sources or risk of PFCs in aquatic environments of China. In the present study, forty two surface water samples collected from five regions with different levels of industrialization were monitored for concentrations of PFCs by use of solid phase extraction and LC/MS/MS. Mean concentrations (maximum concentration) of PFOA and PFOS, which were the dominant PFCs, were 1.2 (2.3) and 0.16 (0.52). ng/l for Guanting, 1.2 (1.8) and 0.32 (1.1). ng/l for Hohhot, 2.7 (15) and 0.93 (5.7). ng/l for Shanxi, 6.8 (12) and 2.6 (11). ng/l for Tianjin, 27 (82) and 4.7 (31). ng/l for Liaoning, respectively. The greatest concentrations of PFCs (121. ng/l), PFOA (82. ng/l) and PFOS (31. ng/l) were observed in Liaoning, which might originate from tributaries of the Liaohe River, the most polluted watershed in Northeast China. While, concentrations of PFCs in the Guanting and Hohhot regions were 3 to 20 fold less than those from Tianjin and Liaoning. This result is consistent with little contribution of PFCs being released from agricultural and non-industrial activities. The magnitudes of mass flow for PFOA and PFOS in decreasing order were: Guanting < Hohhot < Tianjin < Liaoning < Shanxi and Guanting < Hohhot < Shanxi < Tianjin < Liaoning. The larger mass flows of PFOS were accompanied by relatively larger magnitudes of PFOA. Concentrations of both PFOA and PFOS in waters from all regions were less than suggested allowable concentrations. However, the relatively greater concentrations of PFCs in Tianjin and Liaoning suggest that further studies characterizing their sources and potential risk to both humans and wildlife are needed. © 2011 Elsevier Ltd.
Authors & Co-Authors
Wang, Tieyu
China, Beijing
Research Center for Eco-environmental Sciences Chinese Academy of Sciences
Khim, Jong-Seong Seong Jskocean@snu Ac Kr
South Korea, Seoul
Korea University
Chen, Chunli
China, Beijing
Research Center for Eco-environmental Sciences Chinese Academy of Sciences
Naile, Jonathan E.
Canada, Saskatoon
University of Saskatchewan
Lu, Yonglong
China, Beijing
Research Center for Eco-environmental Sciences Chinese Academy of Sciences
Kannan, Kurunthachalam
United States, Albany
State University of new York Albany
Park, Jinsoon
South Korea, Seoul
Korea University
Luo, Wei
China, Beijing
Research Center for Eco-environmental Sciences Chinese Academy of Sciences
Jiao, Wentao
China, Beijing
Research Center for Eco-environmental Sciences Chinese Academy of Sciences
Hu, Wenyou
China, Beijing
Research Center for Eco-environmental Sciences Chinese Academy of Sciences
Giesy, John P.
Canada, Saskatoon
University of Saskatchewan
United States, East Lansing
Michigan State University
Saudi Arabia, Riyadh
College of Sciences
Statistics
Citations: 125
Authors: 11
Affiliations: 6
Identifiers
Doi:
10.1016/j.envint.2011.03.023
Research Areas
Environmental