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EPA AQS Air Quality

Your key

EPA Air Quality System (AQS): historical monitor metadata and daily pollutant measurements by state, county, and parameter code.

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Needs your own EPA AQS Air Quality key. Included on Free.

What you can ask

  • “What does EPA AQS Air Quality have for the area or asset I'm working on?”
  • “Pull the most recent EPA AQS Air Quality records and put them in a table.”
  • “What does EPA AQS Air Quality cover, and how fresh is the data?”

About this source

EPA Air Quality System (AQS) historical monitor and daily measurement data. CRITICAL USAGE RULES: 1. Requires EPA AQS credentials (email + key) per connector connection 2. Use 2-digit FIPS state codes (e.g., "48" for Texas) 3. Use AQS parameter codes like 44201 (ozone), 88101 (PM2.5) 4. Date format is YYYYMMDD

Connector ID epa-aqs

Provenance

PublisherEPA AQS Air Quality
API basehttps://aqs.epa.gov/data/api

Freshness & coverage

FreshnessFreshness not declared
GeographicNot declared
TemporalNot declared
AuthenticationCredentials required (API key)

› Methods (2)

Technical detail for developers: parameters, pagination, units, and freshness per method.

  • getAqsMonitors

    read

    List AQS monitors by state FIPS, parameter, and date range.

  • getAqsData

    read

    Get AQS daily measurements by state FIPS, parameter, and date range.