U.S. EPA fact sheet. [PDF format]
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)
Current air quality and forecasts for New Jersey.
National Oceanic & Atmospheric Administration laboratory research activities are divided into three themes: Air Quality, Emergency Preparedness, and Climate Variability. Each encompasses a number of programs and projects.
Describes the mandatory vehicle emissions testing program in the Denver-Boulder area of Colorado, including maps to emissions stations, testing requirements, help for failing vehicles and tips to keep from becoming a gross polluter.
Environmental information including air pollution, hazardous waste, management, regulations, measuring, modeling, emissions, testing, monitoring, modeling, particulate matter, ozone, and brownfields
EPA's office of Air and Radiation for access to recent news, breaking news, air and radiation information.
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.
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.
Information service on diesel exhaust emissions, emission control technologies, diesel engines, fuels, and related topics.