Technology Transfer Network / NAAQS
Ozone Implementation
Table 1. Ozone Nonattainment Areas -
Design Value Update, 1988-90
Note: EPA no longer updates this information, but it may be useful as a reference or resource.
CLEAN AIR ACT 1988-90 D.V. SITE 1990 1990
STATE NONATTAINMENT AREA NAME CLASSIFICATION D.V. EST. EXC 2ND DAILY EST. EXC.
AL Birmingham NA Area Marginal 0.129 2.7 0.126 4.1
AZ Phoenix Moderate 0.141 6.0 (#4) 0.141 6.0
CA Los Angeles South Coast Air Basin Extreme 0.330 124.8 0.300 103.6
CA Monterey Bay NA Area Moderate 0.121 4.3 0.111 0.0
CA Sacramento Metro NA Area Serious 0.160 9.9 0.160 6.1
CA San Diego NA Area Severe 15 0.190 10.1 0.170 26.0
CA San Francisco-Bay NA Area Moderate 0.130 2.4 0.120 1.0
CA San Joaquin Valley NA Area Serious 0.160 36.6 0.160 24.5
CA Santa Barbara - Santa Maria - Moderate 0.140 1.6 (#5) 0.134 2.0
CA Southeast Desert Modified AQMD Severe 17 0.240 56.2 0.200 43.0
CA Ventura Co NA Area Severe 15 0.170 35.8 0.150 14.0
CT Greater Connecticut NA Area Serious 0.172 7.4 0.158 6.1
CT New York-N. New Jersey-Long Island Severe 17 0.197 12.7 0.175 5.1
DC Washington NA Area Serious 0.165 3.3 0.133 3.4
DE Sussex Co NA Area Marginal 0.140 3.7 (#6) 0.118 1.1
FL Miami-Fort Lauderdale-W. Palm Moderate 0.122 1.0 0.108 1.0
FL Tampa-St. Petersburg-Clearwater Marginal 0.109 1.0 (#7) 0.112 0.0
GA Atlanta NA Area Serious 0.159 5.7 0.148 11.3
IL Chicago-Gary-Lake County NA Area Severe 17 0.187 8.6 (#8) 0.128 2.3
IL Jersey Co NA Area Marginal 0.128 3.1 0.125 2.0
IN Evansville NA Area Marginal 0.124 1.1 0.104 0.0
IN Indianapolis NA Area Marginal 0.123 1.0 0.112 1.0
IN Louisville NA Area Moderate 0.148 3.5 0.127 2.1
IN South Bend-Mishawaka NA Area Marginal 0.120 1.1 0.095 0.0
KY Cincinnati-Hamilton NA Area Moderate 0.157 4.7 0.148 4.0
KY Edmonson Co NA Area Marginal 0.130 1.7 0.108 0.0
KY Huntington-Ashland NA Area Moderate 0.155 5.3 0.143 4.6
KY Lexington-Fayette NA Area Marginal 0.127 2.0 0.107 1.0
KY Owensboro NA Area Marginal 0.137 4.4 0.126 3.0
KY Paducah NA Area Marginal 0.124 1.1 0.103 0.0
LA Baton Rouge NA Area Serious 0.168 5.8 0.178 6.1
LA Lake Charles NA Area Marginal 0.132 2.0 0.132 2.0
MA Boston-Lawrence-Worcester NA Area Serious 0.165 10.0 (#9) 0.126 2.0
MA Springfield (W. Mass) NA Area Serious 0.167 7.7 0.131 3.0
MD Baltimore NA Area Severe 15 0.181 8.7 0.137 5.6
MD Kent County and Queen Anne's CO Marginal 0.131 1.6 0.124 1.0
ME Hancock Co and Waldo Co NA Area Marginal 0.133 2.5 (#10) 0.119 0.0
ME Knox Co and Lincoln Co NA Area Moderate 0.158 8.5 0.121 1.3
ME Lewiston - Auburn NA Area Moderate 0.137 1.5 0.107 0.0
ME Portland NA Area Moderate 0.154 9.1 0.152 6.3
MI Detroit-Ann Arbor NA Area Moderate 0.144 3.7 0.115 0.0
MI Grands Rapids NA Area Moderate 0.143 3.7 0.136 2.0
MI Muskegon NA Area Serious 0.152 6.8 0.130 3.1
MO Kansas City NA Area Submarginal 0.120 1.2 0.111 1.3
MO St. Louis NA Area Moderate 0.149 3.8 0.125 2.1.Table 1. Ozone Nonattainment Areas - Design Value Update, 1988-90
CLEAN AIR ACT 1988-90 D.V. SITE 1990
STATE NONATTAINMENT AREA NAME CLASSIFICATION D.V. EST. EXC 2ND DAILY EST. EXC.
NC Charlotte-Gastonia NA Area Moderate 0.158 2.7 0.123 1.0
NC Greensboro-Winston-Salem-High Moderate 0.151 7.2 (#11) 0.121 1.1
NC Raleigh-Durham NA Area Moderate 0.141 3.4 0.120 0.0
NH Manchester NA Area Marginal 0.128 1.7 0.095 1.0
NH Portsmouth-Dover-Rochester Area Serious 0.156 4.1 0.118 1.0
NJ Atlantic City NA Area Moderate 0.148 4.1 0.157 5.3
NV Reno NA Area Marginal 0.131 2.0 (#12) 0.131 2.0
NY Albany-Schenectady-Troy NA Area Marginal 0.128 3.8 0.112 0.0
NY Buffalo-Niagara Falls NA Area Marginal 0.131 3.1 0.111 0.0
NY Essex Co NA Area Marginal 0.127 1.8 (#13) 0.100 0.0
NY Jefferson Co NA Area Marginal 0.142 2.0 0.090 0.0
NY Poughkeepsie NA Area Marginal 0.134 1.3 0.117 0.0
OH Canton NA Area Marginal 0.135 1.7 0.109 0.0
OH Cleveland-Akron-Lorain NA Area Moderate 0.157 4.0 0.120 1.2
OH Columbus NA Area Marginal 0.128 1.7 0.114 1.0
OH Dayton-Springfield NA Area Moderate 0.143 2.7 0.119 0.0
OH Toledo NA Area Moderate 0.140 2.4 0.095 0.0
OR Portland-Vancouver AQMA NA Area Marginal 0.128 2.2 0.146 4.2
PA Allentown-Bethlehem-Easton NA Marginal 0.137 2.4 0.111 0.0
PA Altoona NA Area Marginal 0.129 1.3 0.097 0.0
PA Erie NA Area Marginal 0.128 2.6 0.100 0.0
PA Harrisburg-Lebanon-Carlisle NA Marginal 0.131 1.8 0.122 1.0
PA Johnstown NA Area Marginal 0.133 2.5 0.103 0.0
PA Lancaster NA Area Marginal 0.122 1.0 0.101 0.0
PA Philadelphia-Wilmington-Trenton Severe 15 0.187 7.0 0.142 5.0
PA Pittsburgh-Beaver Valley NA Area Moderate 0.149 5.6 (#14) 0.109 0.0
PA Reading NA Area Moderate 0.141 3.1 0.113 0.0
PA Scranton-Wilkes-Barre NA Area Marginal 0.129 2.7 0.114 0.0
PA York NA Area Marginal 0.129 1.9 0.121 1.0
PA Youngstown-Warren-Sharon NA Area Marginal 0.128 1.8 0.103 0.0
RI Providence (all of RI) NA Area Serious 0.148 5.7 0.141 6.0
SC Cherokee Co NA Area Marginal 0.128 1.6 0.088 0.0
TN Knoxville NA Area Marginal 0.135 2.1 0.123 1.0
TN Memphis NA Area Marginal 0.125 1.4 0.121 0.0
TN Nashville NA Area Moderate 0.138 6.5 0.130 5.8
TX Beaumont-Port Arthur NA Area Serious 0.150 5.0 0.150 3.2
TX Dallas-Fort Worth NA Area Moderate 0.140 3.5 0.140 4.0
TX El Paso NA Area Serious 0.150 4.2 0.140 4.1
TX Houston-Galveston-Brazoria NA Severe 17 0.220 16.2 0.220 24.0
UT Salt Lake City-Ogden NA Area Moderate 0.144 2.0 0.121 1.0
VA Norfolk-Virginia Beach-Newport Marginal 0.125 1.3 0.109 0.0
VA Richmond-Petersburg NA Area Moderate 0.142 3.1 0.120 1.0
VA Smyth Co NA Area Marginal 0.144 3.8 (#15) ND
WA Seattle - Tacoma NA Area Marginal 0.131 3.3 (#16) 0.131 3.3
WI Door Co NA Area Marginal 0.126 1.8 0.132 3.5.Table 1. Ozone Nonattainment Areas - Design Value Update, 1988-90
CLEAN AIR ACT 1988-90 D.V. SITE 1990
STATE NONATTAINMENT AREA NAME CLASSIFICATION D.V. EST. EXC 2ND DAILY EST. EXC.
WI Kewaunee Co NA Area Moderate 0.146 3.5 0.110 0.0
WI Manitowoc Co NA Area Moderate 0.153 6.3 0.133 2.3
WI Milwaukee-Racine NA Area Severe 17 0.187 8.6 (#17) 0.128 2.3
WI Sheboygan NA Area Serious 0.154 5.4 0.107 0.0
WI Walworth Co NA Area Marginal 0.125 1.3 0.088 0.0
WV Charleston NA Area Moderate 0.138 2.3 0.118 0.0
WV Greenbrier NA Area Marginal 0.125 1.4 0.089 0.0
WV Parkersburg-Marietta NA Area Moderate 0.146 5.5 0.106 0.0
98 Nonattainment Areas
SOURCE: EPA's air quality data system, the Aerometric Information Retrieval System (AIRS), with supplemental data from EPA Regional Offices.
NOTES:
1. Designations and classifications for ozone nonattainment areas as published in the Federal Register, 40 CFR Part 81.
2. The air quality design value is estimated using EPA guidance (Laxton Memorandum, June 18, 1990). Generally, the fourth highest monitored value with 3 complete years of data is selected as the design value because the standard allows one exceedance for each year.
3. The National Ambient Air Quality standard for ozone is 0.12 parts per million (ppm) daily maximum 1-hour average not to be exceeded more than once per year on average. The average estimated number of exceedances column shows the number of days the 0.12 ppm standard was exceeded on average at the site recording the highest design value. This is done after adjustment for incomplete, or missing days, during the 3-year period, 1988-90. The last two columns contain data from the site recording the highest second daily maximum 1-hour concentration in 1990. The last column shows the estimated exceedances for 1990 at the site recording the highest second maximum 1-hour concentration listed in the previous column.
4. The design value and estimated exceedances have been adjusted for a new monitoring site which reported data for 1990.
5. A private site with limited data was not used.
6. The site was moved within the same area. Data from the two separate site records in AIRS have been combined to calculate estimated exceedances.
7. Calculation of design value and estimated exceedances adjusted to account for start-up of a new site in 1990.
8. The design value site for the Chicago NA Area is in Kenosha County, WI.
9. The design value site shut down permanently after 1988.
10. The site was moved several hundred feet within the Park during 1989. Estimated exceedances were calculated after combining data from two separate site records in AIRS.
11. Special study site which operated in 1988.
12. New site which came on-line in 1990.
13. The site is located atop Whiteface Mountain, NY as part of the Mountain Cloud Study. Elevation of the site is 4867 feet. This is a rural transport area. The nonattainment area is that portion of Whiteface Mountain above 4500 feet elevation.
14. The site was relocated during construction activity. Estimated exceedances were calculated using combined data from both locations. The site will be relocated after construction is completed.
15. The site is located atop Whitetop Mountain, VA as part of the Mountain Cloud Study. Site elevation is 5520 feet. No data reported after 1988. This is a rural transport area. The nonattainment area is that portion of Whitetop Mountain above 4500 feet elevation.
16. Calculation of exceedances adjusted for seasonal sampling. Incomplete data for 1988-89.
17. Kenosha is included in the Milwaukee nonattainment area. .Table 2. Unclassified and Transitional Ozone Areas - Design Value Update, 1988-90
CLEAN AIR ACT 1988-90 D.V. SITE 1990
STATE AREA NAME CLASSIFICATION D.V. EST. EXC 2ND DAILY EST. EXC.
CA Chico NA Area Transitional 0.100 0.3 0.120 1.0
CA Imperial Co NA Area Transitional 0.110 0.0 0.100 0.0
CA Yuba City, CA Transitional 0.120 1.1 0.090 0.0
CO Denver - Boulder NA Area Transitional 0.119 0.0 0.110 0.0
FL Jacksonville NA Area Transitional 0.114 0.4 0.110 0.0
LA Beauregard Parish NA Area Inc. Data 0.114 0.0 0.113 0.0
LA Grant Par NA Area Inc. Data 0.092 0.0 0.092 0.0
LA Lafayette NA Area Transitional 0.105 0.0 0.109 0.0
LA Lafourche Par NA Area Inc. Data 0.114 0.0 0.115 0.0
LA New Orleans NA Area Transitional 0.117 0.3 0.107 0.0
LA St. James Par NA Area Inc. Data 0.109 0.0 0.108 0.0
LA St. Mary Par NA Area Inc. Data 0.101 0.0 0.099 0.0
MI Allegan Co NA Area Inc. Data 0.135 1.1 ** 0.118 0.0
MI Flint NA Area Transitional 0.115 0.7 0.097 0.0
MI Lansing-East Lansing NA Area Transitional 0.116 0.0 0.102 0.0
NH Cheshire Co NA Area Inc. Data 0.083 0.0 0.083 0.0
NH Sullivan Co NA Area Inc. Data 0.090 0.0 0.090 0.0
OH Clinton Co NA Area Transitional 0.115 0.7 0.112 0.0
OH Preble Co NA Area Transitional 0.118 0.3 0.089 0.0
OH Steubenville-Weirton NA Area Transitional 0.117 0.3 0.094 0.0
PA Lawrence Co NA Area Inc. Data 0.122 1.0 0.097 0.0
TX Victoria NA Area Inc. Data 0.100 0.0 0.070 0.0
12 Transitional Areas
** - Special study site of the Lake Michigan Ozone Study (LMOS) which operated for 32 days in 1990.
2 New Areas Not Meeting Ozone NAAQS Based on 1988-90 Ambient Data
IL Macopin County, IL Unclassified 0.125 1.4 0.110 1.1
SC Columbia, SC Unclassified 0.122 1.1 0.112 1.1