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Figure 1: Widespread Attainment with PM2.5 and Attainment Standards
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Unless otherwise noted, the data presented throughout this Web site reflect EPA’s 2003 modeling and analysis of the Clear Skies Act of 2003. |
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Current Data
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Currently, hundreds of counties fail to meet standards.
Approximately half of all Americans live in counties expected
to be out of attainment with one or both standards.
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1997-1999 Ozone
1999/2000 PM2.5 - preliminary depiction two years of data. Three years
of completed data required for attainment demonstrations. |
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Currently, hundreds of counties fail to meet standards.
Approximately half of all Americans live in counties
expected to be out of attainment with one or both standards.
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Projections for 2020: Clear Skies and Existing Control
Programs
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*Note: To permit comparisons
among various analyses, the air quality data were the most complete
and recently available as of mid-2001 (1997-1999 ozone monitoring
data and 1999-2000 PM2.5 data). More complete and recent air
quality data for ozone and fine particles (1999-2001 data) is
now available. |
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