EPA FRS: Air Quality System Facilities

EPA's Facility Registry Service (FRS) AIRS_AQS dataset provides geospatial location and identification for facilities linked to the Air Quality System (AQS). This subset of the FRS integrates data from EPA, state, local, and tribal agencies to create a verified, authoritative registry of air monitoring stations. The dataset supports tracking of facilities subject to environmental regulations and of environmental interest.

Use Cases

• Mapping air quality monitoring station locations based on geospatial facility data.
• Tracking regulatory compliance for facilities linked to ambient air pollution data.
• Cross-referencing facility records from federal, state, and tribal master systems.
• Analyzing the distribution of environmental facilities of interest for remediation or cleanup.

Strengths

• Data is integrated from multiple authoritative sources, including EPA national programs and state/tribal records.
• Uses vigorous verification and data management procedures to ensure a single source of facility information.
• Cross-platform presence on Data.gov indicates official importance and sustained maintenance.

Limitations

• Critical metadata is missing, including row count, specific column names, and license information.
• The dataset's description is repeated verbatim across entries, suggesting sparse, non-detailed documentation.
• The 'last updated' dates are future-dated (2026), indicating potential metadata errors or system artifacts.

Provenance

Source

U.S. Environmental Protection Agency (EPA) Facility Registry Service (FRS).

Collection Method

Integrated from EPA's national program systems, other federal agencies, and State and tribal master facility records.

Freshness

Last updated dates conflict, with the most recent entry showing 2026-04-14 19:48:07.892082.

Geography

United States.