Green Book Nonattainment Areas
Nitrogen Dioxide (1971) Area Information
This section provides information about the nonattainment area for the Nitrogen Dioxide (1971) National Ambient Air Quality Standard (NAAQS). The area was designated November 15, 1990.
- Nonattainment Area Selections
On September 22, 1998 the only Nitrogen Dioxide nonattainment area was redesignated to maintenance.
- Maintenance Area Selections (Redesignated from Nonattainment)
- Designation and NAAQS Information Related to Nitrogen Dioxide (1971 Standard)
- Federal Register Notices Related to Nitrogen Dioxide (1971 Standard) Areas