全氟辛酸
全氟辛烷
陆源沉积物
环境化学
中国海
污染
化学
磺酸盐
环境科学
海水
中国
海洋学
沉积物
地质学
生态学
地理
生物
有机化学
地貌学
考古
钠
作者
Qianwen Wang,Gui‐Peng Yang,Zeming Zhang,Shan Jian
标识
DOI:10.1016/j.envpol.2017.07.078
摘要
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 Koc 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.
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