中国渤海湾表层沉积物中重金属的浓度分布及污染评价。
The concentration distribution and pollution assessment of heavy metals in surface sediments of the Bohai Bay, China.
机构信息
Key Laboratory of Coastal Wetland Biogeosciences, China Geological Survey, Qingdao Institute of Marine Geology, Qingdao, China; Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, China; Shandong University of Science and Technology, Qingdao 266590, China.
Key Laboratory of Coastal Wetland Biogeosciences, China Geological Survey, Qingdao Institute of Marine Geology, Qingdao, China; Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, China; Shandong University of Science and Technology, Qingdao 266590, China.
出版信息
Mar Pollut Bull. 2019 Dec;149:110497. doi: 10.1016/j.marpolbul.2019.110497. Epub 2019 Aug 17.
Three hundred five surface sediment samples from the Bohai Bay in northeastern China were examined for grain size, organic carbon (Corg) concentration, and concentrations of heavy metals (Pb, Zn, Cu, As, Cr, Cd, and Hg). Average metal concentrations were 33 mg/kg (Cu), 27 mg/kg (Pb), 95 mg/kg (Zn), 75 mg/kg (Cr), 0.3 mg/kg (Cd), 13 mg/kg (As), and 72 μg/kg (Hg). In most cases, these concentrations were lower than the China Marine Sediment Quality criteria. Enrichment factors, however, suggested moderate to strong Cd and Hg contamination of the Bohai Bay. The fact that 68.6% of Pollution Load Index (PLI) values exceeded 2 demonstrated strong pollution of the Bohai Bay, Hg contributed the most to the PLI.
从中国东北的渤海湾采集了 305 个表层沉积物样本，用于分析粒径、有机碳 (Corg) 浓度以及重金属（Pb、Zn、Cu、As、Cr、Cd 和 Hg）的浓度。平均金属浓度分别为 33mg/kg（Cu）、27mg/kg（Pb）、95mg/kg（Zn）、75mg/kg（Cr）、0.3mg/kg（Cd）、13mg/kg（As）和 72μg/kg（Hg）。在大多数情况下，这些浓度低于中国海洋沉积物质量标准。然而，富集因子表明，渤海湾的 Cd 和 Hg 受到中度到重度污染。污染负荷指数 (PLI) 值有 68.6%超过 2，这表明渤海湾受到强烈污染，Hg 对 PLI 的贡献最大。
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