Why do fish drift to death in Zhaowanghe River in Mudan District of Heze?

After the rain, pesticides are washed into the river, and the pesticide content increases, and some fish will die.

There is also pollution, and injured fish will be infected, especially when the weather is hot.

The oxygen content in people's water will also decrease in weather, which is one of the reasons, but no one knows the specific wishes, so we must make a careful investigation.