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EPA — U.S. Environmental Protection Agency Pollutants API

The Pollutants API from EPA — U.S. Environmental Protection Agency — 6 operation(s) for pollutants.

EPA — U.S. Environmental Protection Agency Pollutants API is one of 137 APIs that EPA — U.S. Environmental Protection Agency publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

This API exposes 1242 JSON Schema definitions.

Tagged areas include Pollutants. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and 1242 JSON Schemas.

This API exposes 6 operations across 6 paths, and defines 6 schemas. It is described by OpenAPI 3.0.3, at version 1.0.

Requests are made against a single base URL, https://aqs.epa.gov/data/api.

6 operations 6 paths 6 schemas 6 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.0.3
API Version
1.0
Base URL
https://aqs.epa.gov/data/api
Authentication
API Key
Resource Areas
1

Authentication & Security 1

EPA — U.S. Environmental Protection Agency Pollutants API declares 1 security scheme for authenticating requests. An API key is passed in the query as key (emailKey). By default, every request must be authenticated.

  • emailKey — AQS requires email and key query parameters on every request. Register at /signup?email=YOUREMAIL to receive a key by email.

Paths & Operations 6

Across 6 paths, the API surfaces 6 operations — 6 GET. Each is listed below with its method, path, parameters, and response codes.

Pollutants 6
GET
/api/pollutants
Pollutants
→ 200
GET
/api/pollutantCategories
Pollutant Categories
→ 200
GET
/api/pollutant
Pollutant
2 params → 200
GET
/api/pollutantCategory
Pollutant Category
2 params → 200
GET
/api/pollutantLimitations
Pollutant Limitations
3 params → 200
GET
/api/limitation
Limitation
2 params → 200

Schemas 6

The contract defines 6 schemas that model the data the API accepts and returns. The most detailed are pollutant.listCategories (1 property), pollutant.limitations (1 property), pollutant.list (1 property), pollutant.readCategory (1 property). Each schema is shown below with its type and property counts.

limitation.read
object
Placeholder
1 property 1 required
pollutant.read
object
Placeholder
1 property 1 required
pollutant.readCategory
object
Placeholder
1 property 1 required
pollutant.list
object
Placeholder
1 property 1 required
pollutant.limitations
object
Placeholder
1 property 1 required
pollutant.listCategories
object
Placeholder
1 property 1 required

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

epa-pollutants-api-openapi.yml Raw ↑

Other APIs EPA — U.S. Environmental Protection Agency publishes across the network.

EPA Facility Registry Service (FRS) API
EPA TRI (Toxics Release Inventory) Web Service
EPA ATTAINS Web Services
EPA WATERS — Watershed Assessment, Tracking & Environmental Results
EPA Grants API
EPA Insect Repellents API
EPA e-Manifest Hazardous Waste Tracking
EPA System of Registries (SoR)
CTX — Center for Computational Toxicology and Exposure APIs
EPA — U.S. Environmental Protection Agency Account Type Codes API
EPA — U.S. Environmental Protection Agency Accounts API
EPA — U.S. Environmental Protection Agency Air Emission Testing API