海河干流重金属污染物时空变化趋势与污染成因分析研究

Research on Variation Trend and Pollution Cause of Heavy Metal in Haihe River

本文选取天津市的主要地表河流海河干流,以水质现状调查数据和历史资料相结合,研究了海河干流中重金属污染物在不同水期、不同区域以及不同年份的变化趋势,掌握了重金属的污染程度。结合天津市的整体经济发展状况及海河干流的水功能区划,指出重金属污染程度主要表现为丰水期>枯水期>平水期、入海段>市区段,并对水体中重金属的污染特征进行了成因分析,为海河干流区域的经济发展规划制定及水体污染防治提供了数据支撑,也为研究入海河流与海洋环境的相互影响提供了依据。

It is analyzed the trend of heavy metals of different water period and year by status monitoring and historical data in Hai he main river which has been taken as the main object in this paper,the pollution level of heavy metals had been mastered. It is noted that the main characteristics of heavy metals pollution are wet period > dry season > flat water period and into sea area > urban area combined with the overall economic development of Tianjin and the Haihe main River's water function zoning,it is analyzed the causes of pollution characteristics of heavy metals at the same time. It is not only provided data support for the economic development plan Haihe main river area and water pollution prevention,but also put forward the research basis of interaction between rivers and marine environment.