"This map shows the boundaries of the designated Philadelphia-Wilmington-Atlantic City, PA-NJ-DE PM2.5 nonattainment area. It includes the boundaries of associated 8-hour ozone nonattainment areas, as well as any associated MPOs. The map is intended to depict the extent of PM2.5 nonattainment in this area, and how the boundaries of the PM2.5 area, 8-hour area, and the MPO planning area relate to each other."
- Philadelphia-Wilmington, PA-NJ-DE PM2.5 Nonattainment Area
- DELAWARE
- New Castle Co
- NEW JERSEY
- Burlington Co
- Camden Co
- Gloucester Co
- PENNSYLVANIA
- Bucks Co
- Chester Co
- Delaware Co
- Montgomery Co
- Philadelphia Co
- DELAWARE
- Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE 8-hour Ozone Nonattainment Area
- DELAWARE
- Kent Co
- New Castle Co
- Sussex Co
- MARYLAND
- Cecil Co
- NEW JERSEY
- Atlantic Co
- Burlington Co
- Camden Co
- Cape May Co
- Cumberland Co
- Gloucester Co
- Mercer Co
- Ocean Co
- Salem Co
- PENNSYLVANIA
- Bucks Co
- Chester Co
- Delaware Co
- Montgomery Co
- Philadelphia Co
- DELAWARE
- Delaware Valley Regional Planning Commission
- NEW JERSEY
- Burlington Co
- Camden Co
- Gloucester Co
- Mercer Co
- PENNSYLVANIA
- Bucks Co
- Chester Co
- Delaware Co
- Montgomery Co
- Philadelphia Co
- NEW JERSEY
- Wilmington Area Planning Council
- DELAWARE
- New Castle Co
- MARYLAND
- Cecil Co
- DELAWARE
