Why is the water quality in Haining, Jiaxing so bad? Same color as muddy water. Is it caused by sewage discharged from the construction site? Like the river separated in front of the city government,

Why is the water quality in Haining, Jiaxing so bad? Same color as muddy water. Is it caused by sewage discharged from the construction site? Like the river separated in front of the city government, it is green. First of all, I am not from Jiaxing, but it is normal to know that sewage treatment is not in place.

If the drainage works are not in place, a similar situation will generally occur after the rain.

Of course, it does not rule out that nearby construction will lead to serious water pollution, such as overflow, pipeline transportation, soil infiltration, etc., which will lead to muddy water.

Your so-called "green"? It may be the phenomenon of eutrophication-too much domestic sewage and organic factory sewage are discharged into the water body.

If there are photos or images, it will be much more convenient to judge.