Det nasjonale kompetansesenteret for luftforurensninger i Norge. NILU forsker, utreder og overvåker luftkvalitet i Norge og har også stor internasjonal aktivitet.

Current air quality and forecasts for New Jersey.

National Oceanic and 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.

Professional organization that provides training, information, and networking opportunities to 12,000 environmental professionals in 65 countries. Focus is on air quality, waste management and environmental management.

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.

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.

Information service on diesel exhaust emissions, emission control technologies, diesel engines, fuels, and related topics.

A non-profit organization dedicated to the furtherence and distribution of knowledge relating to air quality issues.

Facilitates regional planning to address the U.S. EPA regional haze regulations (adopted in 1999) in the five states of Illinois, Indiana, Michigan, Ohio, and Wisconsin.

CA air regulations, CA Almanac of Emissions and Air Quality, air emissions modeling, the gasoline additive MTBE, information on reducing air pollution from marine engines, and management of smoke from agricultural burning.

Provides information about the PAMZ, a non-profit multi-stakeholder organization established to manage and monitor air quality issues in central Alberta, Canada.

information about releases of pollutants into air, water and land, from Environment Canada

The BAAQMD (District) is the regional, government agency that regulates sources of air pollution within the nine San Francisco Bay Area Counties.

The site contains vehicle emissions databases and reports remotely collected from in-use vehicles since 1987 from around the world. Data sets include cars, light-trucks, heavy-duty trucks, jet aircraft, locomotives and snowmobiles.

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.

A division of RIVM, National Institute of Public Health and the Environment. Up-to-date, hourly information about air quality in The Netherlands.

Various materials on air quality and visibility, Forest Service Class I PSD Areas, Integrating Air Quality and Fire Management into Land Management Planning, and smoke and dust from wildland fires.

EPA has issued a number of policy and guidance documents that interpret Title V and its regulations. This is a free searchable database which contains EPA-issued policy and guidance documents on air operating permits. You can search the database online or download the database.

A free resource for Virginia Vehicle Emissions Inspectors. Includes on-line training, discussions forum, tutorials, and a cartoon archive. Citizens who have failed the emissions inspection can use this site for information on causes and repairs that could lead to a passing emissions result.

Conducts research in modelling and prediction of air quality.

U.S. EPA fact sheet.

Includes global, five day forecasts of dust, smoke and sulfate aerosols as well as comparison with satellite analyses.

Features information on the causes and effects of pollution. Includes forecast bulletin, 24 hour summaries and articles.

Gives information on Chicago's air quality and regional pollution prevention programs.

Federal Government's principal program to control air pollution from motor vehicles. Primary responsibilities include developing programs to reduce mobile source related air pollution; evaluating emission control technology; testing vehicles, engines, and fuels; and determining compliance with Federal emissions and fuel economy standards.

Air quality and visibility in U.S. national parks, refuges, and other protected areas. From National Park Service Air Resources Division and Fish and Wildlife Services.

Air Quality monitoring networks of London, Bedfordshire, Kent and Hertfordshire in the UK. Near realtime data is available from the site.

Information on compliance technologies, vendors, and case studies for toxic air pollutants (as defined in U.S. regulations).

Air pollution data, ozone forecasting, information about public health and environmental effects of air pollution, and actions you can take to reduce pollution.

Recounts the historical development of United States air quality statutes and regulations, including an introduction to the technical concepts involved.

A nonprofit organization dedicated to restoring clean air and healthy environments in the United States through scientific research, public education, and legal advocacy.

Presents free accessible articles, publications, events, software, technological solutions and web resources for Air Pollution Control.

Global update 2005, with summary of risk assessment for particulate matter, ozone, nitrogen dioxide and sulfur dioxide. Links to multi-lingual versions in PDF.

National Safety Council's Environmental Health Center (EHC) conducts a variety of outreach and education activities on air quality issues. Topics include indoor air quality, mobile emissions, and radon.

US EPA information about this international agreement and monitoring done under the agreement.

Information on major air quality issues, from local to global, including vehicle emissions, stratospheric ozone depletion, industrial emissions, and particulates. Site hosted by the Air Resources Branch of the Government of British Columbia, Canada.

Research focused on obtaining an improved understanding of the processes that control the formation and distribution of fine particles and ground-level ozone.