Sign up
All data sources

EPA AQS Air Quality

API keyepa-aqs

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

Get this contract as JSONConnect this source →

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)

  • getAqsMonitors

    read

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

    Input schema
    {
  "type": "object",
  "properties": {
    "state": {
      "type": "string",
      "pattern": "^\\d{2}$"
    },
    "param": {
      "type": "string",
      "minLength": 1
    },
    "bdate": {
      "type": "string",
      "pattern": "^\\d{8}$"
    },
    "edate": {
      "type": "string",
      "pattern": "^\\d{8}$"
    }
  },
  "additionalProperties": false,
  "required": [
    "state",
    "param",
    "bdate",
    "edate"
  ]
}

  • getAqsData

    read

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

    Input schema
    {
  "type": "object",
  "properties": {
    "state": {
      "type": "string",
      "pattern": "^\\d{2}$"
    },
    "param": {
      "type": "string",
      "minLength": 1
    },
    "bdate": {
      "type": "string",
      "pattern": "^\\d{8}$"
    },
    "edate": {
      "type": "string",
      "pattern": "^\\d{8}$"
    }
  },
  "additionalProperties": false,
  "required": [
    "state",
    "param",
    "bdate",
    "edate"
  ]
}