汕头龙湖沟河段水质状况监测与评价对策

Water Quality Monitoring and Evaluation with Several Countermeasures of Shantou Longhu Ditches Section

通过监测汕头湖沟中上游河段水体14个项目的水质状况,采用单因子评价方法,初步确定该河段水体的主要污染物为氨氮、总磷、溶解氧和化学需氧量。其中氨氮含量超标较为严重。总磷指标属于轻度污染。溶解氧和化学需氧量可能受河段气温升高及降水量影响而出现轻微污染情况。探究分析上述污染指标的可能原因还有河岸两边大量生活污水、工业废水的排放,以及畜牧家禽养殖业等相关产业的粪便排泄物。提出了对该河流水体污染物冶理,河道环境卫生整治的可行性建议与对策。

Through monitoring 14 items on water quality data of the Shantou Longhu Ditches River section initially showed that the major pollutants in this water body were ammonia nitrogen,total phosphorus,dissolved oxygen and chemical oxygen demand according to the method of single factor pollution index.Among them,the ammonia nitrogen content exceeded the standard showed a more serious pollution and the total phosphorus index had a mild pollution.The dissolved oxygen and chemical oxygen demand presented a situation of slight pollution which may be affected by the increase of temperature or the precipitation in the river.By exploration and analysis,the possible reasons of the pollution index above could be attributed to a large number of emissions of domestic sewage and industrial waste water on both sides of the river,as well as the feces excreta from livestock and poultry farming or related industries.Several feasible suggestions and countermeasures for smelting the water body pollutants in this river with the environmental health were put forward.