Geography Teachers Association. Search Topic 25.Toxic waste, waste management and pollution.

Greenpeace International

National Pollutant Inventory

Office of Air and Radiation
The Environment Protection Agency's (USA) Office of Air and Radiation deals with issues that affect the quality of the air and protection from exposure to harmful radiation.

Turbidity
Environment Protection Authority of America

World Wildlife Fund : information on the nature and types of pollution

Yahoo : Society and Culture/Environment and Nature. Search "Pollution"