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Area Designations for 1997 Fine Particle (PM2.5) Standards

1997 PM2.5 Standards — Region 9 State Designations

Boundary Designations for the 1997 PM2.5 Standard - EPA Region 9

Map showing PM2.5 designations for 1997 standard for Region 9 Map legend

This table identifies all counties EPA has designated as nonattainment. In some cases EPA designated partial counties. These are identified by a (P). If a county is not listed below, EPA has designated it as unclassifiable/attainment.

State Area Name Counties
Arizona Entire state is attainment/unclassifiable
California* Los Angeles-South Coast Air Basin, CA Los Angeles (P)
Riverside (P)
San Bernardino(P)
San Joaquin Valley, CA Fresno
Kern (P)
San Joaquin
Hawaii Entire state is attainment/unclassifiable
Nevada Entire state is attainment/unclassifiable
*See correspondence related to the April, 2005 supplemental notice for information about changes to designations since the December, 2004 action.

Region 9 Recommendations and EPA Responses

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