长江口污染物种类及其来源

Pollutant Category and Its Source in Yangtze River Estuary

为了研究长江口水环境状况,通过查阅文献、参考海洋公报对长江口海域的监测数据等方法,确定了长江口及其附近海域的主要污染物种类,并分析近几年各污染物变化趋势。同时,针对长江口特殊的地理位置,探究造成其水质污染的各主要途径,结果发现路源输入、大气沉降、内源释放等是导致水环境恶化的关键污染渠道。

In order to research the condition of water environment in Yangtze River estuary,this paper found some main pollutant category and analyzed the variety trend of each pollutant in the last few years by refuting to the literature and making the reference to the monitoring data getting from the ocean official gazette of the Yangtze River estuary.At the same time, aiming at the special geography position of the Yangtze River estuary, some paths of bringing about water pollution was studied. The conclusion shows that the input of the land source, the atmospheric deposition and the release of itself are the key ways that result in the had condition of water environment.