摘要
宁德市近岸海域水质污染严重,三都澳海域作为宁德市最大的海湾,无机氮是最主要的污染因子。本文通过统计2016~2019年宁德市三都澳海域水质监测结果,分析三都澳海域无机氮污染状况及时空变化。结果表明:2016~2018年该海域无机氮污染居高不下,以劣四类为主,2019年无机氮浓度有所下降,仍有向劣四类转化的趋势;从时间变化上表现为丰水期大于枯水期大于平水期;从空间分布上表现为由沿岸向远岸减少。
The coastal waters of Ningde are seriously polluted.Sandu'ao is the largest bay in Ningde,and inorganic nitrogen is the most important pollution factor.Based on the statistics of the water quality monitoring results of Sandu'ao sea area in Ningde city from 2016 to 2019,this paper analyzes the time and space changes of inorganic nitrogen pollution in Sandu'ao sea area.The results show that from 2016 to 2018,the inorganic nitrogen pollution in Australia remained high,mainly in the inferior four categories.In 2019,the inorganic nitrogen concentration has declined,and there is still a trend of transforming to the inferior four categories;it shows abundant water from time changes.The period is greater than the dry period and greater than the normal period;in terms of spatial distribution,it decreases from coastal to far shore.
作者
雷廷波
Lei Tingbo(Ningde Environmental Monitoring Center Station of Fujian Province,Ningde 352100,China)
出处
《皮革制作与环保科技》
2020年第17期28-33,共6页
Leather Manufacture and Environmental Technology
关键词
三都澳海域
无机氮
时空变化
建议
Sandu'ao waters
inorganic nitrogen
temporal and spatial changes
suggestions
