Water pollution is caused by harmful chemicals and they have reduced the use of the water.
This will also cause problems to drinking water.
The animals which live in the sea or river will die,
and the water system will be out of balance.
As we all know that water is the origin of lives, it’s the base of almost everything.
And water is also the important part of human body.
And in Compendium of Materia Medica (《本草纲目》),
water is even more important than medicine to some extent.
However the water pollution has made the shortage of water even worse.
In China, there are more than 300 cities out of water,
and more than 200 million people do not have enough water.