Occurrence of perfluorinated compounds in fish from Qinghai-Tibetan Plateau.
Perfluorinated compounds (PFCs) were found in fish muscle collected from high mountain lakes in the Qinghai-Tibetan Plateau, the highest and biggest plateau on Earth. In 96% of the total fifty-nine fish samples were found detectable perfluorooctane sulfonate (PFOS) as prominent PFCs, while only three for perfluorooctanoate (PFOA). The mean PFOS concentrations in fish muscle ranged 0.21ng/g-5.20ng/g based on dry weight, with the maximum in the Palgon Lake (1.30ng/g-7.54ng/g, dw) and the minimum in the Ni-yang River (<0.15ng/g-0.32ng/g, dw) among the seven sampling sites. Long-chain perfluorocarboxylic acids (C10, C11) were also identified in several locations. No significant correlations were observed between PFCs concentrations and sampling altitude or ages (fish). Results of the present work have demonstrated the existence of low level but detectable PFCs pollution in the Qinghai-Tibetan Plateau in China.
Shi
Yali
Y
State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Science, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, People's Republic of China.
Pan
Yuanyuan
Y
State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Science, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, People's Republic of China.
Yang
Ruiqiang
R
State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Science, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, People's Republic of China.
Wang
Yawei
Y
State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Science, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, People's Republic of China.
Cai
Yaqi
Y
State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Science, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, People's Republic of China. Electronic address: caiyaqi@rcees.ac.cn.
D017738:Alkanesulfonic Acids / Q000378:metabolism; D000818:Animals; D002681:China; D004784:Environmental Monitoring; D005399:Fishes / Q000378:metabolism*; D005466:Fluorocarbons / Q000378:metabolism*; D005618:Fresh Water / Q000737:chemistry*; D009132:Muscles / Q000378:metabolism; D014874:Water Pollutants, Chemical / Q000378:metabolism*
D017738:Alkanesulfonic Acids; D005466:Fluorocarbons; D014874:Water Pollutants, Chemical; C076994:perfluorooctane sulfonic acid