- Norwegian Institute for Air Research
A leading centre of expertise in questions related to air pollution. Established in 1969, it is an independent foundation specialized in most issues of air pollution on national and international levels. (Language: Norwegian)
- Air & Waste Management Association (A&WMA )
Environmental information including air pollution, hazardous waste, management, regulations, measuring, modeling, emissions, testing, monitoring, modeling, particulate matter, ozone, and brownfields
- State/Local Air Pollution Control Agencies
The State and Territorial Air Pollution Program Administrators (STAPPA) and the Association of Local Air Pollution Control Officials (ALAPCO) are national associations representing air pollution control agencies in the 54 U.S. states/territories and over 150 major metropolitan areas. Site has information and links.
- EDF Chemical Scorecard
Toxic Release Inventory data for the US (emissions of toxic chemicals to air and water). Search for data on toxic chemicals in your community. Also provides information on human health effects.
- Clean Air Canada
Up to date information on air quality issues in Canada. Including environmental law and policy, motor vehicle emissions and industrial sources of pollution. Maintained by students at the Environment Law Centre, University of Victoria.