What are the characteristics of chemical water pollution?

Harmful pollutants discharged by chemical industry will pollute water and atmosphere, especially water pollution. Water pollution, toxic and irritating. The concentration of organic matter is high and the ph value is unstable. Wastewater containing more phosphorus and nitrogen will lead to eutrophication, which will lead to a large number of algae and microorganisms in the water. In severe cases, it will cause red tide and affect the development of fish. It is very difficult to restore the water body that is difficult to be polluted by harmful substances.