Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of Coastal Zone Research-YIC, Chinese Academy of Sciences-CAS, Shandong Provincial Key Laboratory of Coastal Zone Environmental Processes, YICCAS, Yantai Shandong 264003, PR China.
Mar Pollut Bull. 2012 Aug;64(8):1529-36. doi: 10.1016/j.marpolbul.2012.04.026. Epub 2012 Jun 14.
Surface sediments from intertidal Bohai Bay were sampled for the geochemical and environmental assessment of six trace metals (Cd, Cr, Cu, Ni, Pb and Zn). Results indicate that sediment grain size plays an important role in controlling the distribution and fractionation of them. Metal concentrations in clayey silt sediments are all clearly higher than in sand and silty sand ones. Cd and Pb in clayey silt sediments are more mobile than in sand and silty sand ones. Two sediment quality guidelines and two geochemical normalization methods (index of geoaccumulation and enrichment factor) were used to judge the potential risk and accumulation of metals. According to the mean probable effects level quotient, the combination of studied metals may have a 21% probability of being toxic. The sediments with high fraction of clay and silt have been contaminated by trace metals to various degrees, among which Cr contributes the most to contamination.
对渤海潮间带表层沉积物进行了采样，以评估六种痕量金属（Cd、Cr、Cu、Ni、Pb 和 Zn）的地球化学和环境状况。结果表明，沉积物粒径对它们的分布和分馏起着重要作用。粘土质粉砂沉积物中的金属浓度均明显高于砂质和粉砂质沉积物。粘土质粉砂沉积物中的 Cd 和 Pb 比砂质和粉砂质沉积物更具迁移性。使用两种沉积物质量准则和两种地球化学归一化方法（地积累指数和富集因子）来判断金属的潜在风险和积累程度。根据平均可能效应水平商，研究中的金属组合可能有 21%的毒性概率。高粘土和粉砂分数的沉积物已受到痕量金属的不同程度污染，其中 Cr 对污染的贡献最大。
