undesirable state of the natural environment being contaminated with harmful substances as a consequence of human activities the state of being polluted the act of contaminating or polluting
including (either intentionally or accidentally) unwanted substances or factors
Pollution Online
Daily news and product updates for professionals in the pollution control industry. Information on manufacturing, technology, equipment, supplies, and discussion forums, online chat, newsletter, software. http://www.pollutiononline.com/
EDF Chemical Scorecard
Toxic Release Inventory data for the US. Sources and amounts of toxic chemicals released to air and water. Also has information on health effects and other topics. http://www.scorecard.org/