Evaluation And Early Warning Of Water Quality Of Yangcheng Lake In Suzhou Industrial Park

The water resource per capita in China is very small,and with the quicker socioeconomic development and the faster improvement of people's living standards,the contradiction between freshwater resources and per capita demand becomes more significant.Therefore,assurance of the safety of drinking water quality will face a more severe challenge,and requirements for it will also be higher.With the frequent occurrence of accidents in drinking water sources throughout the country in recent years,people have paid more attention to the water quality safety of water sources.Main sources of drinking water in Suzhou are basically in Taihu Lake.Taihu Lake water,once contaminated,will directly affect the safety of drinking water in the surrounding areas,and also affect the safety of drinking water of all people in Suzhou.Therefore,Suzhou Industrial Park has opened Yangcheng Lake water source in order to form a water supply pattern of "dual water source" to protect the safety of drinking water of people in the park.Based on the monitoring and analysis of Yangcheng Lake in recent years,this paper analyzes the water quality safety of Yangcheng Lake water source of Suzhou Industrial Park based on the monitoring data and evaluates the present situation of water quality in Yangcheng Lake water source.According to the existing water quality conditions,several characteristic pollutants were selected for specific research and analysis,and their potential laws were analyzed and studied according to the monitoring situation in recent years.Several factors that might affect the water quality of water sources were also studied,such as precipitation and non-point source pollution,sedimentation of nitrogen oxide in the atmosphere and other issues.Furthermore,the quality of upstream water and water quality at the water source were studied to obtain the impact on quality of inflow water.Some recent special cases of Yangcheng Lake and their possible impact on water quality in water sources were also analyzed.Then in light of the present situation of water quality in Yangcheng Lake water source of Suzhou Industrial Park,a suitable warning scheme was put forward to give a reference to guarantee the water quality of Yangcheng Lake water source of Suzhou Industrial Park.Finally,in terms of the above factors,some preventive measures were proposed in this paper to protect the water quality safety of Yangcheng Lake water source of Suzhou Industrial Park.In recent years,the water quality of Yangcheng Lake water source of Suzhou Industrial Park basically accords with class III water quality standard.Besides the individual index exceeding the standard,the water quality is safe.