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

Table 7-6: Connecticut 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)
Fairfield Greater Connecticut, CT 95 96 97 98 99 00 01 NA Serious Part 38,101
Fairfield New York - N. New Jersey - Long Island, NY-NJ-CT 95 96 97 98 99 00 01 NA Severe = 17 Part 844,466
Hartford Greater Connecticut, CT 95 96 97 98 99 00 01 NA Serious Whole 857,183
Litchfield Greater Connecticut, CT 95 96 97 98 99 00 01 NA Serious Part 153,248
Litchfield New York - N. New Jersey - Long Island, NY-NJ-CT 95 96 97 98 99 00 01 NA Serious Part 28,945
Middlesex Greater Connecticut, CT 95 96 97 98 99 00 01 NA Serious Whole 155,071
New Haven Greater Connecticut, CT 95 96 97 98 99 00 01 NA Serious Whole 824,008
New London Greater Connecticut, CT 95 96 97 98 99 00 01 NA Serious Whole 259,088
Tolland Greater Connecticut, CT 95 96 97 98 99 00 01 NA Serious Whole 136,364
Windham Greater Connecticut, CT 95 96 97 98 99 00 01 NA Serious Whole 109,091

KEY: NA = not applicable.

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) and above; Severe-17 = design value of 0.190 up to 0.280 ppm and has 17 years to reach attainment; Severe-15 = design value of 0.180 up to 0.190 ppm and has 15 years to reach attainment; Serious = design value of 0.160 up to 0.180 ppm; Moderate = design value of 0.138 up to 0.160 ppm; Marginal = design value of 0.121 up to 0.138 ppm; Section 185A = an area designated as an ozone nonattainment area as of the date of enactment of the Clean Air Act Amendments of 1990 and has not violated the national primary ambient air quality standard for ozone for the 36-month period commencing on Jan. 1, 1987, and ending on Dec. 31, 1989.

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