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为了解象山港海域的重金属污染情况，于2021年11月(秋季)和2022年4月(春季)在研究区域内采集了54个站点的表底层海水，以及其中若干站点的沉积物和生物样品，分析了象山港表层和底层海水、沉积物以及生物体中重金属的含量。分别采用单因子污染指数、内梅罗污染指数和潜在生态危害指数综合分析了象山湾海域的污染水平。结果显示：象山港水体中重金属浓度均符合一类海水标准，污染程度较低；但时空分布不均，有明显的季节差异和港内外差异。沉积物中Cu是污染比较严重的重金属，部分区域超过一类标准值。潜在生态危害水平近年有上升趋势。生物体中As元素含量明显超出污染限值，春秋季节的甲壳类及鱼类体内重金属综合污染均达到重度污染水平。
Abstract：In order to understand the heavy metal pollution in the sea area of Xiangshan Bay, surface and bottom seawater, sediment, and organism samples were collected from 54 stations, along with sediment and organism samples from several of these stations, in November 2021(fall) and April 2022(spring), and the contents of heavy metals in the surface and bottom seawater, sediment, and organisms in Xiangshan Bay were obtained. The pollution level of Xiangshan Bay waters was comprehensively analyzed using the single-factor pollution index, Nemerow pollution index and potential ecological hazard index, respectively. The results showed that all the heavy metals in the water bodies of Xiangshan Harbor met the standard of a class of seawater, and the pollution level was low.However, the spatial and temporal distribution was uneven, with obviousseasonal differences and differences inside and outside the harbor. Cu in the sediments was the more seriously polluted heavy metal, and some areas exceeded the Class I standard value. Potential ecological hazard level has been on the rise in recent years. As elements in organisms all significantly exceeded the pollution limit value, and the combined heavy metal pollution in crustaceans and fish reached the heavy pollution level in both seasons.
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基本信息:
中图分类号:X55;X820.4
引用信息:
[1]丁祝涛,曹露,边佳胤,等.象山港重金属污染的时空分布特性研究及风险评价[J].浙江海洋大学学报(自然科学版),2025,44(05):429-437.
基金信息:
国家自然科学基金项目(51909237); 舟山市科技局项目(2020C11246)
2025-09-15
2025-09-15