Abstract
As an important urban lake in Fuling District, Chongqing City, there is water blooms in Tonggu Lake, which affect the ecological environment. This study analyzed and studied the external and internal status of water pollution through site survey, water quality testing and analysis, and laboratory data analysis, and diagnosed the water environment of Tonggu Lake, which is helpful for providing strong data support for the follow-up solution to the problem of water bloom in Tonggu Lake.
Highlights
In order to investigate the impact of external source pollution on the water environment quality of Tonggu Lake, the surface water quality of different waters in Tonggu Lake was sampled and tested at different points mainly for the content of TP, COD, TN, NH4+-N, NO3N and Chla[2]
The Chla value in the surface water is much higher than the overlying water, which shows that external source pollution is the main source of eutrophication of Tonggu Lake
Through testing of samples in laboratory, it was found that the nutrient salt in Tonggu Lake showed a trend of interstitial water> overlying water> surface water
Summary
Urban lakes is extremely important for maintaining the safety of water, ecology and environment, promoting ecological balance, and improving the living environment of the people[1]. Due to the input of mustard waste water and non-point source pollution, the water body of Tonggu Lake has turned black, and the growth potential of algae is large, and water blooms are common in summer. In order to improve the water environment management of Tonggu Lake, actively rectify the lake eutrophication and river black and odor problems, promote the improvement of the ecological environment, the research is specially conducted to provide reference for other urban lake pollution management
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