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PM-2.5 (2012) Designated Area/State Information
PM-2.5 (2012) Designated Area/State Information
Data is current as of June 30, 2024PM-2.5 (2012) Notes
| Area Name | State | Current Status | Current Classification or at Redesignation |
No. Counties |
2010 Population |
EPA Region |
|---|---|---|---|---|---|---|
|
Click underlined column heading to change report order. click area name for state/county list |
click for Classification history |
|||||
Total Areas |
Total Counties |
Total Population (2010) |
||||
| Nonattainment | 5 | 15 | 20,941,659 | |||
| Maintenance | 4 | 5 | 2,281,522 | |||
| Nonattainment and Maintenance | 9 | 20 | 23,223,181 | |||
| Allegheny County, PA | PA | Nonattainment | Moderate | 1 | 1,223,348 | 03 |
| Cleveland, OH | OH | Maintenance | Moderate | 2 | 1,581,478 | 05 |
| Delaware County, PA | PA | Maintenance | Moderate | 1 | 558,979 | 03 |
| Imperial County, CA | CA | Nonattainment | Moderate | 1 | 154,061 | 09 |
| Lebanon County, PA | PA | Maintenance | Moderate | 1 | 133,568 | 03 |
| Los Angeles-South Coast Air Basin, CA | CA | Nonattainment | Serious | 4 | 15,716,242 | 09 |
| Plumas County, CA | CA | Nonattainment | Serious | 1 | 5,843 | 09 |
| San Joaquin Valley, CA | CA | Nonattainment | Serious | 8 | 3,842,165 | 09 |
| West Silver Valley, ID | ID | Maintenance | Moderate | 1 | 7,497 | 10 |
PM-2.5 (2012) Notes
County subtotals and grand totals may not equal sum of the counties. Part counties are only counted one time within groupings. Multi-state areas are counted only once in area totals, and are counted in maintenance totals when all states in the area have been redesignated.
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