Counties Designated "Nonattainment" or "Maintenance"

for Clean Air Act's National Ambient Air Quality Standards (NAAQS) *

~ O



03/2008

County Designated Nonattainment or Maintenance for 5 NAAQS Pollutants
County Designated Nonattainment or Maintenance for 4 NAAQS Pollutants
County Designated Nonattainment or Maintenance for 3 NAAQS Pollutants
County Designated Nonattainment or Maintenance for 2 NAAQS Pollutants
County Designated Nonattainment or Maintenance for 1 NAAQS Pollutants

Guam - Piti and Tanguisson Counties are designated nonattainment for the S02 NAAQS
Puerto Rico - Mun. of Guaynamo is designated nonattainment for the PM10 NAAQS

* The National Ambient Air Quality Standards are health standards for lead, carbon monoxide, sulfur dioxide,
ground level 8-hour ozone, and particulate matter (PM-10 and PM-2.5). There are no nitrogen dioxide nonattainment areas.

** Partial counties, those with part of the county designated nonattainment and part attainment, are shown
as full counties on the map. Green Book reports should be checked for complete county information.

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