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Air-quality designation areas

Add regional air-quality designation context to a proposed development. features keep the pollutant standard and current designation status attached to each mapped area.

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Data product
Environment
Access
Included in every plan through the API, the MCP server and the plugins.
Time structure
Reference snapshot
History available
Published inventory or reporting period; see coverage for the source dates.
Observation frequency
Varies by underlying publication.
Reporting lag
Reporting lag varies by source.
Inventory checked
2026-09-23. Coverage dates describe this checked inventory.

What's in this dataset

Pollutant and standard
The specific air-quality standard associated with the feature.
Designation status
Nonattainment and maintenance are distinguished in the current source.
Area and state portion
Published area name and jurisdictional portion.
Boundary and provenance
Display geometry remains linked to the originating designation record.

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Query Air-quality designation areas through Korzy

Every plan includes this dataset through the API and MCP server, and in Claude and ChatGPT through our plugins. The field catalog is free, so you can see what each request returns and costs before you spend credits.

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