海河干流水质时空变化特征

Spatial-temporal Variation of the Water Quality in Main Stream of Haihe River

利用监测数据,对海河市区段和入海段水质类别进行了评价,分析水质时空变化特征,为海河干流水污染治理提供参考。结果表明,海河市区段总体为V类水,入海段总体为劣V类水。从水质变化趋势来看,海河干流水质有所好转,主要污染因子浓度下降,但入海段污染依然严重,治理入海段水污染问题是海河干流治理的关键所在。

Based on the monitoring data , the water quality of the downtown section and the sea section of Haihe River were evaluated, and the characteristics of the spatial-temporal variation were analyzed, aimed to provide basic information for the control of the pollution of Haihe River. The results showed that the water quality of the downtown section was class V and the water quality of the sea section was higher than class V. According to the water quality trends, the water quality in the main stream of Haihe River was improved. The concentration of the main pollution factor decreased, but the pollution of the sea section was still severe. It is the key to control the pollution of the sea section for improving the water quality in the main stream of Haihe River.