openapi: 3.0.3
info:
  title: EPA Air Quality System (AQS) Account Type Codes Daily Data API
  description: 'The Air Quality System (AQS) Data Mart API provides programmatic access to ambient air

    sample data collected by state, local, tribal and federal air pollution control agencies

    from thousands of monitors across the United States. The API exposes monitor metadata,

    raw sample observations, daily/quarterly/annual aggregates, and quality assurance results.

    '
  version: '1.0'
  contact:
    name: AQS Data Mart Support
    email: aqsdatamart@epa.gov
    url: https://aqs.epa.gov/aqsweb/documents/data_api.html
  license:
    name: U.S. Government Work / Public Domain
    url: https://www.usa.gov/government-works
servers:
- url: https://aqs.epa.gov/data/api
  description: Production AQS Data Mart API
security:
- emailKey: []
tags:
- name: Daily Data
  description: Daily aggregated values.
paths:
  /dailyData/bySite:
    get:
      tags:
      - Daily Data
      summary: Get Daily Data by Site
      operationId: dailyDataBySite
      parameters:
      - $ref: '#/components/parameters/Email'
      - $ref: '#/components/parameters/Key'
      - $ref: '#/components/parameters/Param'
      - $ref: '#/components/parameters/Bdate'
      - $ref: '#/components/parameters/Edate'
      - $ref: '#/components/parameters/State'
      - $ref: '#/components/parameters/County'
      - $ref: '#/components/parameters/Site'
      - $ref: '#/components/parameters/Cbdate'
      - $ref: '#/components/parameters/Cedate'
      responses:
        '200':
          description: Daily values
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Envelope'
              examples:
                dailyDataBySite200Example:
                  summary: Default dailyDataBySite 200 response
                  x-microcks-default: true
                  value:
                    status: ok
                    message: Example response
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /dailyData/byCounty:
    get:
      tags:
      - Daily Data
      summary: Get Daily Data by County
      operationId: dailyDataByCounty
      parameters:
      - $ref: '#/components/parameters/Email'
      - $ref: '#/components/parameters/Key'
      - $ref: '#/components/parameters/Param'
      - $ref: '#/components/parameters/Bdate'
      - $ref: '#/components/parameters/Edate'
      - $ref: '#/components/parameters/State'
      - $ref: '#/components/parameters/County'
      - $ref: '#/components/parameters/Cbdate'
      - $ref: '#/components/parameters/Cedate'
      responses:
        '200':
          description: Daily values
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Envelope'
              examples:
                dailyDataByCounty200Example:
                  summary: Default dailyDataByCounty 200 response
                  x-microcks-default: true
                  value:
                    status: ok
                    message: Example response
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /dailyData/byState:
    get:
      tags:
      - Daily Data
      summary: Get Daily Data by State
      operationId: dailyDataByState
      parameters:
      - $ref: '#/components/parameters/Email'
      - $ref: '#/components/parameters/Key'
      - $ref: '#/components/parameters/Param'
      - $ref: '#/components/parameters/Bdate'
      - $ref: '#/components/parameters/Edate'
      - $ref: '#/components/parameters/State'
      - $ref: '#/components/parameters/Cbdate'
      - $ref: '#/components/parameters/Cedate'
      responses:
        '200':
          description: Daily values
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Envelope'
              examples:
                dailyDataByState200Example:
                  summary: Default dailyDataByState 200 response
                  x-microcks-default: true
                  value:
                    status: ok
                    message: Example response
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /dailyData/byBox:
    get:
      tags:
      - Daily Data
      summary: Get Daily Data by Bounding Box
      operationId: dailyDataByBox
      parameters:
      - $ref: '#/components/parameters/Email'
      - $ref: '#/components/parameters/Key'
      - $ref: '#/components/parameters/Param'
      - $ref: '#/components/parameters/Bdate'
      - $ref: '#/components/parameters/Edate'
      - $ref: '#/components/parameters/MinLat'
      - $ref: '#/components/parameters/MaxLat'
      - $ref: '#/components/parameters/MinLon'
      - $ref: '#/components/parameters/MaxLon'
      - $ref: '#/components/parameters/Cbdate'
      - $ref: '#/components/parameters/Cedate'
      responses:
        '200':
          description: Daily values
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Envelope'
              examples:
                dailyDataByBox200Example:
                  summary: Default dailyDataByBox 200 response
                  x-microcks-default: true
                  value:
                    status: ok
                    message: Example response
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /dailyData/byCBSA:
    get:
      tags:
      - Daily Data
      summary: Get Daily Data by CBSA
      operationId: dailyDataByCBSA
      parameters:
      - $ref: '#/components/parameters/Email'
      - $ref: '#/components/parameters/Key'
      - $ref: '#/components/parameters/Param'
      - $ref: '#/components/parameters/Bdate'
      - $ref: '#/components/parameters/Edate'
      - $ref: '#/components/parameters/Cbsa'
      - $ref: '#/components/parameters/Cbdate'
      - $ref: '#/components/parameters/Cedate'
      responses:
        '200':
          description: Daily values
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Envelope'
              examples:
                dailyDataByCBSA200Example:
                  summary: Default dailyDataByCBSA 200 response
                  x-microcks-default: true
                  value:
                    status: ok
                    message: Example response
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
components:
  parameters:
    State:
      name: state
      in: query
      required: true
      schema:
        type: string
        pattern: ^\d{2}$
      description: 2-digit state FIPS code.
    MinLat:
      name: minlat
      in: query
      required: true
      schema:
        type: number
        format: float
      description: Minimum latitude of bounding box.
    MaxLon:
      name: maxlon
      in: query
      required: true
      schema:
        type: number
        format: float
    Bdate:
      name: bdate
      in: query
      required: true
      schema:
        type: string
        pattern: ^\d{8}$
      description: Begin date (YYYYMMDD).
    Cbdate:
      name: cbdate
      in: query
      required: false
      schema:
        type: string
        pattern: ^\d{8}$
      description: Optional change begin date (returns records updated since cbdate).
    County:
      name: county
      in: query
      required: true
      schema:
        type: string
        pattern: ^\d{3}$
      description: 3-digit county code.
    MaxLat:
      name: maxlat
      in: query
      required: true
      schema:
        type: number
        format: float
    MinLon:
      name: minlon
      in: query
      required: true
      schema:
        type: number
        format: float
    Email:
      name: email
      in: query
      required: true
      schema:
        type: string
        format: email
      description: Registered email address.
    Key:
      name: key
      in: query
      required: true
      schema:
        type: string
      description: Account-specific access key.
    Param:
      name: param
      in: query
      required: true
      schema:
        type: string
      description: Comma-separated list of up to 5 AQS 5-digit parameter codes.
    Site:
      name: site
      in: query
      required: true
      schema:
        type: string
        pattern: ^\d{4}$
      description: 4-digit site code.
    Cedate:
      name: cedate
      in: query
      required: false
      schema:
        type: string
        pattern: ^\d{8}$
      description: Optional change end date.
    Cbsa:
      name: cbsa
      in: query
      required: true
      schema:
        type: string
        pattern: ^\d{5}$
      description: 5-digit Core Based Statistical Area code.
    Edate:
      name: edate
      in: query
      required: true
      schema:
        type: string
        pattern: ^\d{8}$
      description: End date (YYYYMMDD). Must be in the same year as bdate for most services.
  schemas:
    Header:
      type: object
      properties:
        status:
          type: string
          example: active
        request_time:
          type: string
          example: string
        url:
          type: string
          example: https://example.com
        rows:
          type: integer
          example: 100
        error:
          type: array
          items:
            type: string
          example:
          - string
    Envelope:
      type: object
      required:
      - Header
      - Data
      properties:
        Header:
          type: array
          items:
            $ref: '#/components/schemas/Header'
          example:
          - string
        Data:
          type: array
          items:
            type: object
          example:
          - {}
  securitySchemes:
    emailKey:
      type: apiKey
      in: query
      name: key
      description: 'AQS requires `email` and `key` query parameters on every request. Register at

        `/signup?email=YOUR_EMAIL` to receive a key by email.

        '