Table 7-5: Ohio Air Quality Nonattainment Areas for Ozone (O3)

Table 7-5: Ohio 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)
Ashtabula Cleveland-Akron-Lorain 95 5/7/1996 Moderate Whole 102,728
Butler Cincinnati-Hamilton, KY 95 96 97 98 99 00 01 NA Moderate Whole 332,807
Clark Dayton-Springfield 95 7/5/1995 Moderate Whole 144,742
Clermont Cincinnati-Hamilton, KY 95 96 97 98 99 00 01 NA Moderate Whole 177,977
Clinton Clinton County 95 3/21/1996 Section 185A Whole 40,543
Cuyahoga Cleveland-Akron-Lorain 95 5/7/1996 Moderate Whole 1,393,978
Delaware Columbus 95 4/1/1996 Marginal Whole 109,989
Franklin Columbus 95 4/1/1996 Marginal Whole 1,068,978
Geauga Cleveland-Akron-Lorain 95 5/7/1996 Moderate Whole 90,895
Greene Dayton-Springfield 95 7/5/1995 Moderate Whole 147,886
Hamilton Cincinnati-Hamilton, KY 95 96 97 98 99 00 01 NA Moderate Whole 845,303
Lake Cleveland-Akron-Lorain 95 5/7/1996 Moderate Whole 227,511
Licking Columbus 95 4/1/1996 Marginal Whole 145,491
Lorain Cleveland-Akron-Lorain 95 5/7/1996 Moderate Whole 284,664
Lucas Toledo 95 8/1/1995 Moderate Whole 455,054
Mahoning Youngstown-Warren-Sharon 95 4/1/1996 Marginal Whole 257,555
Medina Cleveland-Akron-Lorain 95 5/7/1996 Moderate Whole 151,095
Miami Dayton-Springfield 95 7/5/1995 Moderate Whole 98,868
Montgomery Dayton-Springfield 95 7/5/1995 Moderate Whole 559,062
Portage Cleveland-Akron-Lorain 95 5/7/1996 Moderate Whole 152,061
Stark Canton 95 4/1/1996 Marginal Whole 378,098
Summit Cleveland-Akron-Lorain 95 5/7/1996 Moderate Whole 542,899
Trumbull Youngstown-Warren-Sharon 95 4/1/1996 Marginal Whole 225,116
Warren Cincinnati-Hamilton, KY 95 96 97 98 99 00 01 NA Moderate Whole 158,383
Wood Toledo 95 8/1/1995 Moderate Whole 121,065

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.