中国东海表层沉积物中的全氟烷基酸。
Perfluoroalkyl acids in surface sediments of the East China Sea.
作者信息
Wang Qian-Wen, Yang Gui-Peng, Zhang Ze-Ming, Jian Shan
机构信息
Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao Collaborative Innovation Center of Marine Science and Technology, Qingdao 266100, China; Central Laboratory, Qingdao Agricultural University, Qingdao 266109, China.
Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao Collaborative Innovation Center of Marine Science and Technology, Qingdao 266100, China; Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China.
出版信息
Environ Pollut. 2017 Dec;231(Pt 1):59-67. doi: 10.1016/j.envpol.2017.07.078. Epub 2017 Aug 5.
The occurrence of 17 target PFAA analytes was determined in surface sediments (n = 37) of the East China Sea and potential influencing factors were examined. ΣPFAAs ranged from 0.41 ng/g dw to 3.06 ng/g dw, with perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS) as the most abundant perfluorocarboxylic acid and perfluoroalkyl sulfonate, respectively. PFAAs in the sediments were strongly influenced by terrigenous input. Analysis of the relationship between dynamic influence factors and PFAA concentrations showed that the characteristics of PFAA distribution were rather complex. ΣPFAA concentrations and TOC were positively correlated (p < 0.0001). Circumfluence also influenced the whole PFAA distribution and seasonal variation. In addition, correlation analysis suggested that log K values increased with increasing perfluoroalkyl chain length. Given the rapid economic development of eastern coastal cities of China, the environmental hazards of land source pollution cannot be ignored.
测定了东海表层沉积物（n = 37）中17种目标全氟烷基酸分析物的含量，并研究了潜在影响因素。全氟烷基酸总量在0.41 ng/g干重至3.06 ng/g干重之间，其中全氟辛酸（PFOA）和全氟辛烷磺酸（PFOS）分别是最主要的全氟羧酸和全氟烷基磺酸。沉积物中的全氟烷基酸受陆源输入的强烈影响。对动态影响因素与全氟烷基酸浓度之间的关系分析表明，全氟烷基酸的分布特征相当复杂。全氟烷基酸总量浓度与总有机碳呈正相关（p < 0.0001）。环流也影响了全氟烷基酸的整体分布和季节变化。此外，相关性分析表明，log K值随全氟烷基链长度的增加而增大。鉴于中国东部沿海城市经济的快速发展，陆源污染的环境危害不容忽视。
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