氯化石蜡
海水
沉积物
环境科学
环境化学
中国
海洋生态系统
空间分布
生态系统
生态学
地理
化学
生物
地质学
地貌学
考古
有机化学
遥感
作者
Hongmei Hu,Hangbiao Jin,Tiejun Li,Yuanming Guo,Pengfei Wu,Kaida Xu,Wenbin Zhu,Yanqiu Zhou,Meirong Zhao
标识
DOI:10.1016/j.scitotenv.2021.151932
摘要
Short chain chlorinated paraffins (SCCPs) have attracted increasing attention due to their potential risks to the ecosystem and human health. However, there is still a lack of systematic research on their environmental fate in the coastal marine environment. In this study, we collected paired seawater (n = 40) and surface sediment samples (n = 40) from East China Sea, and investigated their spatial distribution, partitioning behaviors and ecological risks. The total SCCP concentrations (∑SCCPs) in seawater and sediment samples were in the range of 12.2-430 ng/L and 89.6-351 ng/g (dry weight), respectively. C10-11 SCCPs and Cl5-7 SCCPs were the predominant homologues in all of the samples. This study first calculated the field-based logKOC values for ∑SCCPs in the marine environment, which ranged from 5.0 to 6.5 (mean 5.5). The logKOC values of SCCP homologues (range 3.6-8.0, mean 5.6) showed a weak correlation with their logKOW (R = 0.214, p < 0.05). A preliminary risk assessment indicated that SCCPs at current levels posed no significant ecological risk. Overall, this study contributes to the further understanding of environmental behaviors of SCCPs in the marine environment.
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