V.I.Il'ichev Pacific Oceanological Institute, Far Eastern Branch of Russian Academy of Sciences, Vladivostok 690041, Russia.
V.I.Il'ichev Pacific Oceanological Institute, Far Eastern Branch of Russian Academy of Sciences, Vladivostok 690041, Russia.
Mar Pollut Bull. 2022 Jul;180:113797. doi: 10.1016/j.marpolbul.2022.113797. Epub 2022 May 28.
Sediment samples from 53 stations of the southwestern Chukchi sea were investigated to the spatial distributions and assess the state of trace metals contamination using ecological indices. The mean concentrations (mg kg) in sediments were: Cr (70.5), Ni (41.0), Cu (16.5), Zn (82.7), As (15.90), Cd (0.27), Pb (15.96), Hg (32.0 μg kg). The spatial distribution pattern of trace metals was similar with maximum values in the northern of the Chukchi Sea in the outer shelf sediments, while the high values of Cd were noted at stations located in the southern part of the sea where a strong influence of the Pacific waters penetrating through the Bering Strait. The ecological indices indicated no signs of anthropogenic pollution in the study sediments of the Chukchi Sea. Received data are of value for detecting and tracking future chemical changes in the sediments of the Chukchi sea, particularly in light of environmental changes.
对楚科奇海南部 53 个站位的沉积物样品进行了调查，采用生态指数法研究了痕量金属的空间分布和污染状况。沉积物中各痕量金属的平均浓度（mg/kg）分别为：Cr（70.5）、Ni（41.0）、Cu（16.5）、Zn（82.7）、As（15.90）、Cd（0.27）、Pb（15.96）、Hg（32.0μg/kg）。痕量金属的空间分布模式与楚科奇海北部外陆架沉积物中的最大值相似，而在位于该海域南部的站位上则记录到 Cd 的高值，这是因为该海域受到了来自太平洋的强烈影响，这些海水通过白令海峡渗透进来。生态指数表明，楚科奇海研究沉积物中没有人为污染的迹象。所获得的数据对于检测和跟踪楚科奇海沉积物中的未来化学变化具有重要价值，特别是在考虑到环境变化的情况下。
