PM-10 (1987) Nonattainment Areas
Data is current as of June 30, 2025
| SERIOUS |
| East Kern County, CA |
| Inyo County; Owens Valley planning area, CA |
| Maricopa and Pinal Counties; Phoenix planning area, AZ |
| Pinal County (part); West Pinal, AZ |
| Riverside County; Coachella Valley planning area, CA |
| |
| MODERATE |
| Cochise County; Paul Spur/Douglas planning area, AZ |
| Dona Ana County; Anthony, NM |
| El Paso County, TX |
| Hayden, AZ |
| Lake County; Polson, MT |
| Lake County; Ronan, MT |
| Miami, AZ |
| Mono Basin, CA |
| New York County, NY |
| Pima County; Rillito planning area, AZ |
| Power-Bannock Counties; Fort Hall Indian Reservation, ID |
| Rosebud County; Lame Deer, MT |
| San Bernardino County, CA |
| Santa Cruz County; Nogales planning area, AZ |
| Trona, CA |
| Yuma, AZ |
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