CAS Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China.
College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China.
Mar Pollut Bull. 2018 Oct;135:90-94. doi: 10.1016/j.marpolbul.2018.07.017. Epub 2018 Jul 9.
To reveal the pollution levels and estimate the ecological risks of polychlorinated naphthalenes (PCNs) in the East China Sea (ECS), seventy-five surface sediment samples were collected and analyzed by high-resolution mass spectrometry. PCN contents ranged from below detection limit to 261.71 ng/g dry weight (d.w.), with an integrally seaward decreasing trend. Mono-, tetra-, and hepta-CNs were the dominant homologs, and CN-2, CN-73, and CN-75 were the major individual components in most samples. CN-2 presented an obvious boundary with lower contents (16.48 ± 3.40 ng/g d.w.) in the center of the study area and higher contents (50.88 ± 10.39 ng/g d.w.) in the north and south of the boundary. The toxic equivalent (TEQ) contents ranged from 0 to 0.212 ng/g, and CN-2 and CN-73 were the predominant contributors to the TEQ.
为揭示东海（ECS）中多氯萘（PCN）的污染水平并评估其生态风险，采集了 75 个表层沉积物样品，并采用高分辨质谱进行了分析。PCN 含量范围为未检出到 261.71ng/g 干重（d.w.），整体呈向海递减趋势。单氯、四氯和七氯是主要同系物，CN-2、CN-73 和 CN-75 是大多数样品中的主要单体成分。CN-2 呈现明显的边界，研究区中心含量较低（16.48±3.40ng/g d.w.），边界南北两侧含量较高（50.88±10.39ng/g d.w.）。毒性当量（TEQ）含量范围为 0 至 0.212ng/g，CN-2 和 CN-73 是 TEQ 的主要贡献者。
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