The lack of agriculture and industry keep the river free from pollution.

Protecting our air, land, and water from pollution is certainly important.

The general public are also in danger from industrial pollution.

However, there is evidence that in recent years the lake has been suffering from outside pollution.

"The health of roughly 100 million people is at risk from pollution in developing countries."

Mine area suffers from pollution of air, water and land.

Score one for the woman who doesn't want to know from pollution.

However, to prevent the water from pollution, the local industry was limited.

So 29 000 dead from pollution not a cost Tom?

No one is concerned about the residents suffering from pollution.