Area Designations for 2006 24-Hour Fine Particle (PM2.5) Standards
2006 24-Hour PM2.5 Standards — Region 9 Recommendations and EPA Responses
EPA Intended Designations (Not Final)
| State | County Name | Nonattainment Designation |
|---|---|---|
| AZ | Santa Cruz | Partial |
| AZ | Pinal | Partial |
| CA | Alameda | Whole |
| CA | Butte | Whole |
| CA | Contra Costa | Whole |
| CA | El Dorado | Partial |
| CA | Fresno | Whole |
| CA | Imperial | Whole |
| CA | Kern | Partial |
| CA | Kings | Whole |
| CA | Los Angeles | Partial |
| CA | Madera | Whole |
| CA | Marin | Whole |
| CA | Merced | Whole |
| CA | Napa | Whole |
| CA | Orange | Whole |
| CA | Placer | Partial |
| CA | Riverside | Partial |
| CA | Sacramento | Whole |
| CA | San Bernardino | Partial |
| CA | San Francisco | Whole |
| CA | San Joaquin | Whole |
| CA | San Mateo | Whole |
| CA | Santa Clara | Whole |
| CA | Solano | Whole |
| CA | Sonoma | Partial |
| CA | Stanislaus | Whole |
| CA | Sutter | Whole |
| CA | Tulare | Whole |
| CA | Yolo | Whole |
| CA | Yuba | Whole |