Green Book PM-2.5 (1997) Area Information
This section provides detailed information about designations, classifications and the nonattainment area status for the PM-2.5 (1997) National Ambient Air Quality Standards (NAAQS). Original areas were designated April 5, 2005.
The 1997 Primary Annual PM-2.5 NAAQS (level of 15 µg/m3) is revoked in attainment and maintenance areas for that NAAQS. For additional information see the PM-2.5 NAAQS SIP Requirements Final Rule, effective October 24, 2016. (81 FR 58010)
- All Designated Area Selections (Nonattainment and Maintenance)
- Nonattainment Area Selections
- Maintenance Area Selections (Redesignated from Nonattainment)
- Area Maps
Map and GIS shapefile downloads are available from the Downloads page (see sidebar link)
- National Maps
- State Maps
- Interactive Map with Current Status of PM-2.5 (1997) Nonattainment/Maintenance Areas
- Other Information
- Summary Reports
- Comparison to Other Standards
- Designation and NAAQS Information Related to the 1997 PM-2.5 Standard
- Federal Register Notices Related to PM-2.5 (1997) Areas