Friday, September 1, 2006

U.S. EPA ’s Aerometric Information Retrieval System (AIRS)


Apparently this is a project which existed at one time and has morphed into four services as described below.

In 2001, EPA changed the Aerometric Information Retrieval System (AIRS) to a database that is solely related to tracking the compliance of stationary sources of air pollution with EPA regulations: the Air Facility Subsystem (AFS). With this change in focus, administration of the AIRS/AFS database was transferred to EPA's Office of Enforcement and Compliance Assurance. For more information, see:

Air Facility Subsystem (AIRS/AFS): Database overview, contacts, technical support phone number.
Compliance and Enforcement Data Systems: Other databases administered by the Office of Enforcement and Compliance Assurance.

Information about air monitoring - the ambient concentrations of air pollutants - was moved out of AIRS to a separate database: the Air Quality System (AQS). For more information see:

Air Quality System (AQS): Database overview, memos, contacts.
AirData Web Site: Reports and maps of air monitoring annual summary data.