School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China.
School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China.
Mar Pollut Bull. 2018 Jan;126:349-356. doi: 10.1016/j.marpolbul.2017.11.019. Epub 2017 Nov 23.
China's coastal environment has been heavily affected by the loading of terrestrial pollutants in recent decades, and quantitative risk assessment is urgently needed to assess the ecological risks of China's coastal environment. We assessed the ecological risks induced by five heavy metals (including Cu, Zn, Pb, Hg and As) in China's coastal waters for three groups of marine organisms (including crustacean, fish and mollusc) based on data obtained from a nationwide unified coastal environment monitoring program consisting of 301 sampling sites. The results show that higher heavy metal concentrations occurred more frequently in the Bohai Sea and in the estuaries of major sea-going rivers. The ecological risks decreased in the following order: Bohai Sea>Yellow Sea>South China Sea>East China Sea. There was generally low ecological risk, but certain hotspots existed near Tianjin and Jinzhou, which had relatively high ecological risks caused by Cu and Zn.
中国的沿海环境在近几十年受到了大量陆地污染物的影响，因此迫切需要进行定量风险评估，以评估中国沿海环境的生态风险。我们根据全国统一的沿海环境监测计划（包括 301 个采样点）获得的数据，对中国沿海水域中的五种重金属（包括铜、锌、铅、汞和砷）对三组海洋生物（甲壳类动物、鱼类和软体动物）引起的生态风险进行了评估。结果表明，渤海和主要入海河流的河口处重金属浓度较高的情况更为频繁。生态风险的顺序依次为：渤海>黄海>南海>东海。总体而言，生态风险较低，但在天津和锦州附近存在一些热点地区，这些地区由于铜和锌的存在而导致生态风险相对较高。
