EPA — U.S. Environmental Protection Agency · Schema

dfr024

Air Quality Object

GovernmentEnvironmentalOpen DataAir QualityWater QualityHazardous WasteComplianceEmissions

Properties

Name Type Description
CarbonMonoxide1971Area string Indicates the relevant National Ambient Air Quality Standards (NAAQS) nontattinment standard for Carbon Monoxide (1971).
Lead1978Area string Indicates the relevant National Ambient Air Quality Standards (NAAQS) nontattinment standard for Lead (1978).
Lead2008Area string If null, the facility is not located in a designated non-attainment area. If populated, the value is the name of the non-attainment area; normally this is a city or county name
NitrogenDioxide1971Area string Indicates the relevant National Ambient Air Quality Standards (NAAQS) nontattinment standard for Nitrogen Dioxide (1971).
Ozone8hr1997Area string If null, the facility is not located in a designated non-attainment area. If populated, the value is the name of the non-attainment area; normally this is a city or county name
Ozone8hr2008Area string If null, the facility is not located in a designated non-attainment area. If populated, the value is the name of the non-attainment area; normally this is a city or county name
Ozone8hr2015Area string Indicates the relevant National Ambient Air Quality Standards (NAAQS) nontattinment standard for 8-Hour Ozone (2005).
ParticulateMatter1987Area string Indicates the relevant National Ambient Air Quality Standards (NAAQS) nontattinment standard for Particulate Matter (1987).
ParticulateMatter1997Area string If null, the facility is not located in a designated non-attainment area. If populated, the value is the name of the non-attainment area; normally this is a city or county name
ParticulateMatter2006Area string If null, the facility is not located in a designated non-attainment area. If populated, the value is the name of the non-attainment area; normally this is a city or county name
ParticulateMatter2012Area string Indicates the relevant National Ambient Air Quality Standards (NAAQS) nontattinment standard for Particulate Matter (2012).
SulfurDioxide1971Area string Indicates the relevant National Ambient Air Quality Standards (NAAQS) nontattinment standard for Sulfur Dioxide (1971).
SulfurDioxide2010Area string If null, the facility is not located in a designated non-attainment area. If populated, the value is the name of the non-attainment area; normally this is a city or county name
View JSON Schema on GitHub

JSON Schema

echo-dfr-dfr024-schema.json Raw ↑ 
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/json-schema/echo-dfr-dfr024-schema.json",
  "title": "dfr024",
  "description": "Air Quality Object",
  "type": "object",
  "properties": {
    "CarbonMonoxide1971Area": {
      "description": "Indicates the relevant National Ambient Air Quality Standards (NAAQS) nontattinment standard for Carbon Monoxide (1971).",
      "example": "Billings Area, MT",
      "title": "Carbon Monoxide (1971) Nonattainment Area",
      "type": "string"
    },
    "Lead1978Area": {
      "description": "Indicates the relevant National Ambient Air Quality Standards (NAAQS) nontattinment standard for Lead (1978).",
      "example": "Lewis & Clark County (part); City of East Helena and vicinity, MT",
      "title": "Lead (1978) Nonattainment Area",
      "type": "string"
    },
    "Lead2008Area": {
      "description": "If null, the facility is not located in a designated non-attainment area. If populated, the value is the name of the non-attainment area; normally this is a city or county name",
      "example": "Washington, DC-MD-VA",
      "title": "Lead Area - 2008",
      "type": "string"
    },
    "NitrogenDioxide1971Area": {
      "description": "Indicates the relevant National Ambient Air Quality Standards (NAAQS) nontattinment standard for Nitrogen Dioxide (1971).",
      "example": "Los Angeles-South Coast Air Basin Area, CA",
      "title": "Nitrogen Dioxide (1971) Nonattainment Area",
      "type": "string"
    },
    "Ozone8hr1997Area": {
      "description": "If null, the facility is not located in a designated non-attainment area. If populated, the value is the name of the non-attainment area; normally this is a city or county name",
      "example": "Milwaukee-Racine, WI",
      "title": "Eight Hour Ozone Area - 1997",
      "type": "string"
    },
    "Ozone8hr2008Area": {
      "description": "If null, the facility is not located in a designated non-attainment area. If populated, the value is the name of the non-attainment area; normally this is a city or county name",
      "example": "Chicago-Naperville, IL-IN-WI",
      "title": "Eight Hour Ozone Area - 2008",
      "type": "string"
    },
    "Ozone8hr2015Area": {
      "description": "Indicates the relevant National Ambient Air Quality Standards (NAAQS) nontattinment standard for 8-Hour Ozone (2005).",
      "example": "Chicago-Naperville, IL-IN-WI",
      "title": "8-Hour Ozone (2005) Nonattainment Area",
      "type": "string"
    },
    "ParticulateMatter1987Area": {
      "description": "Indicates the relevant National Ambient Air Quality Standards (NAAQS) nontattinment standard for Particulate Matter (1987).",
      "example": "Lake County; Cities of East Chicago, Hammond, Whiting, and Gary, IN",
      "title": "Particulate Matter (1987) Nonattainment Area",
      "type": "string"
    },
    "ParticulateMatter1997Area": {
      "description": "If null, the facility is not located in a designated non-attainment area. If populated, the value is the name of the non-attainment area; normally this is a city or county name",
      "example": "Washington, DC-MD-VA",
      "title": "Particulate Matter Area - 1997",
      "type": "string"
    },
    "ParticulateMatter2006Area": {
      "description": "If null, the facility is not located in a designated non-attainment area. If populated, the value is the name of the non-attainment area; normally this is a city or county name",
      "example": "Washington, DC-MD-VA",
      "title": "Particulate Matter Area - 2006",
      "type": "string"
    },
    "ParticulateMatter2012Area": {
      "description": "Indicates the relevant National Ambient Air Quality Standards (NAAQS) nontattinment standard for Particulate Matter (2012).",
      "example": "Los Angeles-South Coast Air Basin",
      "title": "Particulate Matter (2012) Nonattainment Area",
      "type": "string"
    },
    "SulfurDioxide1971Area": {
      "description": "Indicates the relevant National Ambient Air Quality Standards (NAAQS) nontattinment standard for Sulfur Dioxide (1971).",
      "example": "Lake County: (part), IN",
      "title": "Sulfur Dioxide (1971) Nonattainment Area",
      "type": "string"
    },
    "SulfurDioxide2010Area": {
      "description": "If null, the facility is not located in a designated non-attainment area. If populated, the value is the name of the non-attainment area; normally this is a city or county name",
      "example": "Washington, DC-MD-VA",
      "title": "Sulfur Dioxide Area - 2010",
      "type": "string"
    }
  }
}

Work with this as data

Every JSON Schema here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for schemas

4 MCP tools reach this
  • find_json_schemasBrowse and filter every JSON Schema in the catalog.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This JSON Schema 
curl "https://apis.io/api/v1/json-schemas/echo-dfr-dfr024"
All schemas 
curl "https://apis.io/api/v1/json-schemas?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.