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This Air Quality System (AQS) technical area is designed primarily
for AQS users (state, tribal and local agency management, EPA
Regional Offices, consultants, and environmental group.) It
provides information about the use of the AQS application, software
downloads, file formats, background project information, and events
of special interest to personnel working with data for the AQS.
Note: AQS was formerly a subsystem of the Aerometric Information
Retrieval System (AIRS). AIRS also included the AIRS Facility
Subsystem (AFS). AFS is now operated and maintained by the EPA's Office
of Enforcement and Compliance Assurance (OECA).
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