Table 7-6: Colorado Air Quality Nonattainment Areas for Ozone(O3)

Table 7-6: Colorado Air Quality Nonattainment Areas for Ozone(O3)

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County Area Nonattainment in year Redesignation to attainment Classification Part or whole county Population (2000)
Adams Denver-Boulder 95 96 97 98 99 00 01 10/11/2001 Section 185A Part 356,944
Arapahoe Denver-Boulder 95 96 97 98 99 00 01 10/11/2001 Section 185A Part 483,770
Boulder Denver-Boulder 95 96 97 98 99 00 01 10/11/2001 Section 185A Part 291,288
Denver Denver-Boulder 95 96 97 98 99 00 01 10/11/2001 Section 185A Whole 554,636
Douglas Denver-Boulder 95 96 97 98 99 00 01 10/11/2001 Section 185A Whole 175,766
Jefferson Denver-Boulder 95 96 97 98 99 00 01 10/11/2001 Section 185A Whole 527,056

NOTES: Nonattainment areas do not meet the national primary or secondary ambient air quality standard (NAAQS) for the specified pollutant. Nonattainment areas are classified based on design values: Extreme = design value of 0.280 parts per million (ppm)

SOURCE: U.S. Environmental Protection Agency, Green Book, available at http://www.epa.gov/oar/oaqps/greenbk/anay.html as of Apr. 20, 2002.