|YIN Hua-bin,ZHANG Qing,SHAO Shuai,ZHOU De-shan,CHEN Ke-hong,LIU Zhan-xin.Current Situation and Synthesis Assessment of the Coastal Waters of Lianyungang in 2019[J].Environmental Monitoring and Forewarning,2021,13(2):51-54
|关键词: 连云港 近岸海域 水质环境 综合评价
|Current Situation and Synthesis Assessment of the Coastal Waters of Lianyungang in 2019
YIN Hua-bin,ZHANG Qing,SHAO Shuai,ZHOU De-shan,CHEN Ke-hong,LIU Zhan-xin
Ganyu Ecological Environmental Monitoring station of Lianyungang , Lianyungang, Jiangsu 222100, China
|In order to understand the water quality status of Lianyungang coastal waters, the writer had samply monitored 19 indicators including nutrients and heavy metals of offshore area in the spring, summer, and fall in 2019.Furthermore,the writer applied Organic pollutant index method and eutrophication index method ,which were made according to the reaching standard rate of seawater quality evaluation standard,to comprehensively evaluate the Organic pollution of sea waters and nutrient level.The results show that the annual reaching standard rate of the survey sites is 86.4 percent in 2019, the reaching standard area reaches 6 543 km2,which accounts for 98 percent of the sea area under jurisdiction.The quality of water was further improved than previous years.The main superscalar includes inorganic nitrogen and phosphates. The comprehensive evaluation results show that the organic pollution and eutrophication of survey seawater are in good condition.The water quality of offshore areas is inferior to that far from the sea.Furthermore, water quality shows the fluctuation change with the replacement of seasons.
|Key words: Lianyungang Offshore area Water quality Comprehensive evaluation