Program
 
General Session 4: Marine environment, ecosystem & sustainability
 
 
 
Poster
Perfluorinated compounds in surface sediment from the northern Bering Sea, Chukchi Sea and adjacent Arctic areas
GS4-15-S
Sanober Kahkashan* , State Key Laboratory of Marine Environmental Science, College of the Environment & Ecology, Xiamen University, Xiamen 361102, China. National Institute of Oceanography, Clifton, Block-1,Karachi-75600, Pakistan
Xinhong Wang, State Key Laboratory of Marine Environmental Science, College of the Environment & Ecology, Xiamen University, Xiamen 361102, China
Chen Jianfang, Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, SOA, Hangzhou,310012, P. R. China
Bai Youcheng, Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, SOA, Hangzhou,310012, P. R. China
Miaolei Ya, State Key Laboratory of Marine Environmental Science, College of the Environment & Ecology, Xiamen University, Xiamen 361102, China
Yizhi Cai, State Key Laboratory of Marine Environmental Science, College of the Environment & Ecology, Xiamen University, Xiamen 361102, China
Presenter Email: sanoberchem@yahoo.com
In this study, concentrations of 17 Perfluorinated compounds (PFCs) measured in surface sediments collected from the northern Bering Sea, Chukchi Sea and adjacent Arctic areas during Fourth Chinese Arctic Expedition in 2010. Total average concentrations of PFCs in surface sediment samples were 7.62 ¡À 0.22 ng g−1 dw in the northern Bering Sea, 14.01¡À 0.53 ng g−1 dw in Chukchi Sea and adjacent Arctic areas, respectively. The dominant perfluorooctanoate (PFOA) (range 0.08-0.52 ng g−1 dw; mean 0.23 ng g-1) compounds were followed by perfluoro-butanesulfonate (PFBS) and perfluorooctane sulfonate (PFOS) in the northern Bering Sea, while PFOA (range 0.30-0.74 ng g-1dw; mean 0.48 ng g-1) and PFBA(mean 0.2 ng g-1; range 0.03-0.68 ng g-1dw) were dominated in Chukchi Sea and Arctic areas. Perfluorooctane sulfonate (PFOS) and perfluorooctanoate (PFOA) were regularly detected at concentrations 0.07 ng g−1 dw and 0.23 ng g−1 dw in sediment of Bering Sea, respectively. In Chukchi Sea and adjacent Arctic Sea, the concentrations of PFOS (0.09 ng g−1 dw) and PFOA (0.48 ng g−1 dw) were found. High concentrations of PFCs in Arctic Ocean may be due to the transportation of sea ice and atmospheric conditions while the PFCs concentrations in northern Bering Sea may be affected by sources from Eurasian continent. An increasing trend of PFCs from Bering Sea to Arctic Ocean was found. Keywords: Perfluorinated compounds, surface sediment, Bering Sea, Chukchi Sea and Arctic areas * Corresponding author. Tel.: +86 592 2187857, Fax: +86 592 2185889. E-mail address: xhwang@xmu.edu.cn (Xin-Hong Wang). Postal address: College of the Environment & Ecology, Xiamen University, Xiamen 361102, China.