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. Near realtime data is available from the site. SmogtestLog - This site is a clearinghouse for information related to testing programs on pollutant emissions from mobile sources. It contains a searchable database or mobile source air pollution and air quality studies.
Site has information and links.
The Low Emissions Mission - 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. Title V Policy and Guidance Database - 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.