摘要
根据海南万宁小海海水增养殖区2018~2020年3年水质监测数据,应用水质单因子污染指数法、有机污染指数评价法、富营养化水平评价法对该海域水质状况进行分析与评价,并采用GIS软件对该海域污染因子进行绘图分析。结果表明:(1)单因子污染指数评价结果表明,该海域在监测时段主要超标因子为无机磷、化学需氧量和无机氮;(2)有机污染指数评价法结果表明,该海水增养殖区遭受有机污染的程度较轻,但2018年8月和2020年的8月水质受到污染,污染程度为3级,属于轻污染富营养化水平结果表明该海域大部分处于富营养和高富营养状态;(3)富营养化水平评价结果表明,该海域大部分处于富营养和高富营养状态;(4)从污染分布来看,主要污染物的呈现湾底浓度高且湾内向湾外递减的趋势。
Based on water quality monitoring data from 2018 to 2020 in Xiaohai Mariculture area, Wanning, Hainan, the single factor Pollution Index method,the organic pollution index method and the eutrophication level method are used to analyze and evaluate the water quality of the sea area, and the pollution factors of the sea area are plotted and analyzed by GIS software. The results showed that:(1) the assessment results of single factor pollution index showed that inorganic phosphorus, Chemical oxygen demand and inorganic nitrogen were the main exceeding standard factors in the monitoring period;The level of organic pollution in the mariculture areas during the survey period was relatively low, but the water quality was polluted in August 2018 and August 2020 with a level 3 pollution level,the results show that most of the sea area is in the state of eutrophication and high eutrophication.(3) the assessment of eutrophication level shows that most of the sea area is in the state of eutrophication and high eutrophication(4) from the pollution distribution, the concentration of main pollutants is high at the bottom of the bay and decreases from the inside to the outside.
作者
徐永辉
黄文国
梁泰尔
Xu Yonghui;Huang Wenguo;Liang Taier(Sanya Marine Environment Monitoring Station of State Oceanic Administration,Sanya 572000;Hainan Province Ocean Monitoring Forecasting,Haikou 570203,China)
出处
《广东化工》
CAS
2021年第8期204-207,共4页
Guangdong Chemical Industry
关键词
万宁小海
海水养殖区
水环境
污染
评价
Wan Ning Xiaohai
mariculture area aquatic
environment
pollution
evaluation
