The Key Laboratory of Gas Hydrate, Ministry of Natural Resources, Qingdao Institute of Marine Geology, Qingdao 266071, China; Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China.
The Key Laboratory of Gas Hydrate, Ministry of Natural Resources, Qingdao Institute of Marine Geology, Qingdao 266071, China; Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China.
Mar Pollut Bull. 2021 Mar;164:112096. doi: 10.1016/j.marpolbul.2021.112096. Epub 2021 Jan 30.
In an effort to assess the potential contamination and determine the environmental risks associated with heavy metals, 51 surface sediment samples (0-4 cm) were collected in the Zhoushan Islands coastal sea of the East China Sea (ECS). The heavy metal concentrations, grain size and total organic carbon (TOC) contents of these surface sediments were comprehensively analyzed. The results showed that the order of the average concentrations of heavy metals is Zn > Cr > Cu > Pb > As > Cd > Hg. Zn, Cr, Cd and Hg exhibit similar distribution and which derived from a common source, however, Cu, Pb and As present different distribution. The metal enrichment factor (EF) and geoaccumulation index (I) values both suggest that Cu and Cd likely pose environmental risks. The results of this study could provide scientific data to authorities in charge of sustainable marine management.
为了评估重金属的潜在污染并确定其与环境相关的风险，在东海舟山群岛近岸海域采集了 51 个表层沉积物样品（0-4cm）。对这些表层沉积物的重金属浓度、粒度和总有机碳（TOC）含量进行了综合分析。结果表明，重金属的平均浓度顺序为 Zn > Cr > Cu > Pb > As > Cd > Hg。Zn、Cr、Cd 和 Hg 具有相似的分布，它们来源于共同的来源，而 Cu、Pb 和 As 则表现出不同的分布。金属富集因子（EF）和地积累指数（I）值均表明 Cu 和 Cd 可能存在环境风险。本研究结果可为负责海洋可持续管理的主管部门提供科学数据。
