An official website of the United States government.

We've made some changes to EPA.gov. If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

Particulate Matter (PM) Pollution

Technical Data and Reports on Particulate Matter (PM) Measurements and SIP Status

EPA collects data from the states and regions on their air quality and state implementation plan (SIP) progress. This information is compiled in a database, and used to create reports, trend charts, and maps.

SIP Status Reports

Reports for nonattainment area SIP requirements

Reports for infrastructure SIP requirements

SIPs approved by EPA

Air Quality Data

Air quality monitoring

  • PM2.5 Ambient Air Monitoring Networks process reported PM data, including visibility and wildfire/smoke monitoring.
  • PM Supersites is an ambient monitoring research program intended to address the scientific uncertainties associated with fine particulate matter. Program goals focus on fine particulate characterization, methods testing, and support to health effects and exposure studies.

Designations

  • PM Designations: Find information on the process EPA, the states, and the tribes follow to designate areas as "attainment" (meeting) or "nonattainment" (not meeting) the PM standards.
  • Green Book: listings of areas designated nonattainment for each NAAQS pollutant. It includes current designation and classification status, area maps, reports, and Federal Register notices.