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Nonattainment Populations By State, Nonattainment Area and County FY 2004

District of Columbia

STATE Nonattainment or Maintence Area COUNTY 2002.7.1 POP. 1-Hr O3 Class O3 WT CO Class CO WT POPULATION FINAL WTED
DISTRICT OF COLUMBIA     570,898         816,384
Washington,DC-MD-VA DC 570,898 Sev 1.3 Mnt 1.1 816,384
Updated: 07/06/2011
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