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In this paper, the navigation survey data of Tanmen Sea area in January 2019, March 2021 and March 2022 were collected to study the pollution characteristics of seawater quality and sediment. The results show that COD, DIN (inorganic nitrogen) and active phosphate in seawater water quality exceed the standard, the water quality in Tanmen Harbor presents a state of severe eutrophication. In March 2021, petroleum exceeded the standard, copper, lead and zinc in heavy metals exceeded the standard slightly, and other factors could meet the requirements of the class of seawater water quality standards. In 2019 and 2021, the petroleum in the sediment can not meet the quality standards of the third class sediment, the organic carbon in 2021 appeared in the phenomenon of exceeding the quality standards of the second class sediment, sulfide, copper and cadmium in 2019 slightly exceeded the standard, and other factors can meet the requirements of the first class sediment standard.

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Study on Environmental Impact of Water Quality and Sediment in Qionghai Tanmen Sea Area

  • 会议论文

  • 发表日期：

    2025年

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  • Yingying Chen,
  • Qiaoling Xie,
  • Yanxia Ni,
  • Dan Ling

摘要

In this paper, the navigation survey data of Tanmen Sea area in January 2019, March 2021 and March 2022 were collected to study the pollution characteristics of seawater quality and sediment. The results show that COD, DIN (inorganic nitrogen) and active phosphate in seawater water quality exceed the standard, the water quality in Tanmen Harbor presents a state of severe eutrophication. In March 2021, petroleum exceeded the standard, copper, lead and zinc in heavy metals exceeded the standard slightly, and other factors could meet the requirements of the class of seawater water quality standards. In 2019 and 2021, the petroleum in the sediment can not meet the quality standards of the third class sediment, the organic carbon in 2021 appeared in the phenomenon of exceeding the quality standards of the second class sediment, sulfide, copper and cadmium in 2019 slightly exceeded the standard, and other factors can meet the requirements of the first class sediment standard.