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County Detail Report for 8-Hour (2008), 8-Hour Ozone (1997-Revoked) and 1-Hour (1979-Revoked)

As of February 13, 2017 The 1997 8-hour Ozone NAAQS was revoked effective April 6, 2015 (80 FR 12264).


Listed by State, County, NAAQS      * Part County NA     NA Area Name (Classification, if applicable)


ALABAMA
Jefferson Co
8-Hr Ozone (1997) Birmingham, AL - (Former Subpart 1)
1-Hr Ozone (1979) Birmingham, AL - (Marginal)
Shelby Co
8-Hr Ozone (1997) Birmingham, AL - (Former Subpart 1)
1-Hr Ozone (1979) Birmingham, AL - (Marginal)
ARIZONA
Maricopa Co
8-Hr Ozone (1997) * Phoenix-Mesa, AZ - (Marginal)
1-Hr Ozone (1979) * Phoenix, AZ - (Serious)
8-Hr Ozone (2008) * Phoenix-Mesa, AZ - (Moderate)
Pinal Co
8-Hr Ozone (1997) * Phoenix-Mesa, AZ - (Marginal)
8-Hr Ozone (2008) * Phoenix-Mesa, AZ - (Moderate)
ARKANSAS
Crittenden Co
8-Hr Ozone (1997) Memphis, TN-AR - (Moderate)
8-Hr Ozone (2008) Memphis, TN-MS-AR - (Marginal)
CALIFORNIA
Alameda Co
8-Hr Ozone (1997) San Francisco Bay Area, CA - (Marginal)
1-Hr Ozone (1979) San Francisco Bay Area, CA - (Other)
8-Hr Ozone (2008) San Francisco Bay Area, CA - (Marginal)
Amador Co
8-Hr Ozone (1997) Amador and Calaveras Cos. (Central Mountain Cos.), CA - (Moderate)
Butte Co
8-Hr Ozone (1997) Chico, CA - (Marginal)
1-Hr Ozone (1979) Chico, CA - (Section 185A)
8-Hr Ozone (2008) Chico (Butte County), CA - (Marginal)
Calaveras Co
8-Hr Ozone (1997) Amador and Calaveras Cos. (Central Mountain Cos.), CA - (Moderate)
8-Hr Ozone (2008) Calaveras County, CA - (Marginal)
Contra Costa Co
8-Hr Ozone (1997) San Francisco Bay Area, CA - (Marginal)
1-Hr Ozone (1979) San Francisco Bay Area, CA - (Other)
8-Hr Ozone (2008) San Francisco Bay Area, CA - (Marginal)
El Dorado Co
8-Hr Ozone (1997) * Sacramento Metro, CA - (Severe 15)
1-Hr Ozone (1979) * Sacramento Metro, CA - (Severe 15)
8-Hr Ozone (2008) * Sacramento Metro, CA - (Severe 15)
Fresno Co
8-Hr Ozone (1997) San Joaquin Valley, CA - (Extreme)
1-Hr Ozone (1979) San Joaquin Valley, CA - (Extreme)
8-Hr Ozone (2008) San Joaquin Valley, CA - (Extreme)
Imperial Co
8-Hr Ozone (1997) Imperial Co, CA - (Moderate)
1-Hr Ozone (1979) Imperial Co, CA - (Section 185A)
8-Hr Ozone (2008) Imperial County, CA - (Moderate)
Kern Co
8-Hr Ozone (1997) * Kern Co (Eastern Kern), CA - (Moderate)
8-Hr Ozone (1997) * San Joaquin Valley, CA - (Extreme)
1-Hr Ozone (1979) * East Kern Co, CA - (Serious)
1-Hr Ozone (1979) * San Joaquin Valley, CA - (Extreme)
8-Hr Ozone (2008) * Kern Co (Eastern Kern), CA - (Moderate)
8-Hr Ozone (2008) * San Joaquin Valley, CA - (Extreme)
Kings Co
8-Hr Ozone (1997) San Joaquin Valley, CA - (Extreme)
1-Hr Ozone (1979) San Joaquin Valley, CA - (Extreme)
8-Hr Ozone (2008) San Joaquin Valley, CA - (Extreme)
Los Angeles Co
8-Hr Ozone (1997) * Los Angeles-San Bernardino Cos. (W Mojave Desert), CA - (Severe 15)
8-Hr Ozone (1997) * Los Angeles-South Coast Air Basin, CA - (Extreme)
1-Hr Ozone (1979) * Los Angeles-South Coast Air Basin, CA - (Extreme)
1-Hr Ozone (1979) * Southeast Desert Modified AQMA, CA - (Severe 17)
8-Hr Ozone (2008) * Los Angeles-San Bernardino Counties (West Mojave Desert), CA - (Severe 15)
8-Hr Ozone (2008) * Los Angeles-South Coast Air Basin, CA - (Extreme)
Madera Co
8-Hr Ozone (1997) San Joaquin Valley, CA - (Extreme)
1-Hr Ozone (1979) San Joaquin Valley, CA - (Extreme)
8-Hr Ozone (2008) San Joaquin Valley, CA - (Extreme)
Marin Co
8-Hr Ozone (1997) San Francisco Bay Area, CA - (Marginal)
1-Hr Ozone (1979) San Francisco Bay Area, CA - (Other)
8-Hr Ozone (2008) San Francisco Bay Area, CA - (Marginal)
Mariposa Co
8-Hr Ozone (1997) Mariposa and Tuolumne Cos (Southern Mtn), CA - (Moderate)
8-Hr Ozone (2008) Mariposa County, CA - (Moderate)
Merced Co
8-Hr Ozone (1997) San Joaquin Valley, CA - (Extreme)
1-Hr Ozone (1979) San Joaquin Valley, CA - (Extreme)
8-Hr Ozone (2008) San Joaquin Valley, CA - (Extreme)
Monterey Co
1-Hr Ozone (1979) Monterey Bay, CA - (Moderate)
Napa Co
8-Hr Ozone (1997) San Francisco Bay Area, CA - (Marginal)
1-Hr Ozone (1979) San Francisco Bay Area, CA - (Other)
8-Hr Ozone (2008) San Francisco Bay Area, CA - (Marginal)
Nevada Co
8-Hr Ozone (1997) * Nevada Co. (Western part), CA - (Moderate)
8-Hr Ozone (2008) * Nevada Co. (Western part), CA - (Moderate)
Orange Co
8-Hr Ozone (1997) Los Angeles-South Coast Air Basin, CA - (Extreme)
1-Hr Ozone (1979) Los Angeles-South Coast Air Basin, CA - (Extreme)
8-Hr Ozone (2008) Los Angeles-South Coast Air Basin, CA - (Extreme)
Placer Co
8-Hr Ozone (1997) * Sacramento Metro, CA - (Severe 15)
1-Hr Ozone (1979) * Sacramento Metro, CA - (Severe 15)
8-Hr Ozone (2008) * Sacramento Metro, CA - (Severe 15)
Riverside Co
8-Hr Ozone (1997) * Los Angeles-South Coast Air Basin, CA - (Extreme)
8-Hr Ozone (1997) * Morongo Band of Mission Indians - (Severe 17)
8-Hr Ozone (1997) * Pechanga Band of Luiseno Mission Indians of the Pechanga Reservation - (Severe 17)
8-Hr Ozone (1997) * Riverside Co. (Coachella Valley), CA - (Severe 15)
1-Hr Ozone (1979) * Los Angeles-South Coast Air Basin, CA - (Extreme)
1-Hr Ozone (1979) * Morongo Band of Mission Indians - (Severe 17)
1-Hr Ozone (1979) * Southeast Desert Modified AQMA, CA - (Severe 17)
8-Hr Ozone (2008) * Los Angeles-South Coast Air Basin, CA - (Extreme)
8-Hr Ozone (2008) * Morongo Band of Mission Indians - (Serious)
8-Hr Ozone (2008) * Pechanga Band of Luiseno Mission Indians of the Pechanga Reservation - (Moderate)
8-Hr Ozone (2008) * Riverside Co, (Coachella Valley), CA - (Severe 15)
Sacramento Co
8-Hr Ozone (1997) Sacramento Metro, CA - (Severe 15)
1-Hr Ozone (1979) Sacramento Metro, CA - (Severe 15)
8-Hr Ozone (2008) Sacramento Metro, CA - (Severe 15)
San Benito Co
1-Hr Ozone (1979) Monterey Bay, CA - (Moderate)
San Bernardino Co
8-Hr Ozone (1997) * Los Angeles-San Bernardino Cos. (W Mojave Desert), CA - (Severe 15)
8-Hr Ozone (1997) * Los Angeles-South Coast Air Basin, CA - (Extreme)
1-Hr Ozone (1979) * Los Angeles-South Coast Air Basin, CA - (Extreme)
1-Hr Ozone (1979) * Southeast Desert Modified AQMA, CA - (Severe 17)
8-Hr Ozone (2008) * Los Angeles-San Bernardino Counties (West Mojave Desert), CA - (Severe 15)
8-Hr Ozone (2008) * Los Angeles-South Coast Air Basin, CA - (Extreme)
San Diego Co
8-Hr Ozone (1997) * Pechanga Band of Luiseno Mission Indians of the Pechanga Reservation - (Severe 17)
8-Hr Ozone (1997) * San Diego, CA - (Moderate)
1-Hr Ozone (1979) San Diego, CA - (Serious)
8-Hr Ozone (2008) * Pechanga Band of Luiseno Mission Indians of the Pechanga Reservation - (Moderate)
8-Hr Ozone (2008) * San Diego County, CA - (Moderate)
San Francisco Co
8-Hr Ozone (1997) San Francisco Bay Area, CA - (Marginal)
1-Hr Ozone (1979) San Francisco Bay Area, CA - (Other)
8-Hr Ozone (2008) San Francisco Bay Area, CA - (Marginal)
San Joaquin Co
8-Hr Ozone (1997) San Joaquin Valley, CA - (Extreme)
1-Hr Ozone (1979) San Joaquin Valley, CA - (Extreme)
8-Hr Ozone (2008) San Joaquin Valley, CA - (Extreme)
San Luis Obispo Co
8-Hr Ozone (2008) * San Luis Obispo (Eastern San Luis Obispo), CA - (Marginal)
San Mateo Co
8-Hr Ozone (1997) San Francisco Bay Area, CA - (Marginal)
1-Hr Ozone (1979) San Francisco Bay Area, CA - (Other)
8-Hr Ozone (2008) San Francisco Bay Area, CA - (Marginal)
Santa Barbara Co
1-Hr Ozone (1979) Santa Barbara-Santa Maria-Lompoc, CA - (Serious)
Santa Clara Co
8-Hr Ozone (1997) San Francisco Bay Area, CA - (Marginal)
1-Hr Ozone (1979) San Francisco Bay Area, CA - (Other)
8-Hr Ozone (2008) San Francisco Bay Area, CA - (Marginal)
Santa Cruz Co
1-Hr Ozone (1979) Monterey Bay, CA - (Moderate)
Solano Co
8-Hr Ozone (1997) * Sacramento Metro, CA - (Severe 15)
8-Hr Ozone (1997) * San Francisco Bay Area, CA - (Marginal)
1-Hr Ozone (1979) * Sacramento Metro, CA - (Severe 15)
1-Hr Ozone (1979) * San Francisco Bay Area, CA - (Other)
8-Hr Ozone (2008) * Sacramento Metro, CA - (Severe 15)
8-Hr Ozone (2008) * San Francisco Bay Area, CA - (Marginal)
Sonoma Co
8-Hr Ozone (1997) * San Francisco Bay Area, CA - (Marginal)
1-Hr Ozone (1979) * San Francisco Bay Area, CA - (Other)
8-Hr Ozone (2008) * San Francisco Bay Area, CA - (Marginal)
Stanislaus Co
8-Hr Ozone (1997) San Joaquin Valley, CA - (Extreme)
1-Hr Ozone (1979) San Joaquin Valley, CA - (Extreme)
8-Hr Ozone (2008) San Joaquin Valley, CA - (Extreme)
Sutter Co
8-Hr Ozone (1997) * Sacramento Metro, CA - (Severe 15)
8-Hr Ozone (1997) * Sutter Co (Sutter Buttes), CA - (Marginal)
1-Hr Ozone (1979) * Sacramento Metro, CA - (Severe 15)
1-Hr Ozone (1979) * Yuba City, CA - (Section 185A)
8-Hr Ozone (2008) * Sacramento Metro, CA - (Severe 15)
Tehama Co
8-Hr Ozone (2008) * Tuscan Buttes, CA - (Marginal)
Tulare Co
8-Hr Ozone (1997) San Joaquin Valley, CA - (Extreme)
1-Hr Ozone (1979) San Joaquin Valley, CA - (Extreme)
8-Hr Ozone (2008) San Joaquin Valley, CA - (Extreme)
Tuolumne Co
8-Hr Ozone (1997) Mariposa and Tuolumne Cos (Southern Mtn), CA - (Moderate)
Ventura Co
8-Hr Ozone (1997) * Ventura Co, CA - (Serious)
1-Hr Ozone (1979) Ventura Co, CA - (Severe 15)
8-Hr Ozone (2008) * Ventura County, CA - (Serious)
Yolo Co
8-Hr Ozone (1997) Sacramento Metro, CA - (Severe 15)
1-Hr Ozone (1979) Sacramento Metro, CA - (Severe 15)
8-Hr Ozone (2008) Sacramento Metro, CA - (Severe 15)
Yuba Co
1-Hr Ozone (1979) Yuba City, CA - (Section 185A)
COLORADO
Adams Co
8-Hr Ozone (1997) Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Marginal)
1-Hr Ozone (1979) * Denver-Boulder, CO - (Section 185A)
8-Hr Ozone (2008) Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Moderate)
Arapahoe Co
8-Hr Ozone (1997) Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Marginal)
1-Hr Ozone (1979) * Denver-Boulder, CO - (Section 185A)
8-Hr Ozone (2008) Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Moderate)
Boulder Co
8-Hr Ozone (1997) Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Marginal)
1-Hr Ozone (1979) * Denver-Boulder, CO - (Section 185A)
8-Hr Ozone (2008) Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Moderate)
Broomfield Co
8-Hr Ozone (1997) Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Marginal)
1-Hr Ozone (1979) Denver-Boulder, CO - (Section 185A)
8-Hr Ozone (2008) Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Moderate)
Denver Co
8-Hr Ozone (1997) Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Marginal)
1-Hr Ozone (1979) Denver-Boulder, CO - (Section 185A)
8-Hr Ozone (2008) Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Moderate)
Douglas Co
8-Hr Ozone (1997) Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Marginal)
1-Hr Ozone (1979) Denver-Boulder, CO - (Section 185A)
8-Hr Ozone (2008) Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Moderate)
Jefferson Co
8-Hr Ozone (1997) Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Marginal)
1-Hr Ozone (1979) Denver-Boulder, CO - (Section 185A)
8-Hr Ozone (2008) Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Moderate)
Larimer Co
8-Hr Ozone (1997) * Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Marginal)
8-Hr Ozone (2008) * Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Moderate)
Weld Co
8-Hr Ozone (1997) * Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Marginal)
8-Hr Ozone (2008) * Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Moderate)
CONNECTICUT
Fairfield Co
8-Hr Ozone (1997) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
1-Hr Ozone (1979) * Greater Connecticut, CT - (Serious)
1-Hr Ozone (1979) * New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 17)
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
Hartford Co
8-Hr Ozone (1997) Greater Connecticut, CT - (Moderate)
1-Hr Ozone (1979) Greater Connecticut, CT - (Serious)
8-Hr Ozone (2008) Greater Connecticut, CT - (Moderate)
Litchfield Co
8-Hr Ozone (1997) Greater Connecticut, CT - (Moderate)
1-Hr Ozone (1979) * Greater Connecticut, CT - (Serious)
1-Hr Ozone (1979) * New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 17)
8-Hr Ozone (2008) Greater Connecticut, CT - (Moderate)
Middlesex Co
8-Hr Ozone (1997) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
1-Hr Ozone (1979) Greater Connecticut, CT - (Serious)
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
New Haven Co
8-Hr Ozone (1997) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
1-Hr Ozone (1979) Greater Connecticut, CT - (Serious)
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
New London Co
8-Hr Ozone (1997) Greater Connecticut, CT - (Moderate)
1-Hr Ozone (1979) Greater Connecticut, CT - (Serious)
8-Hr Ozone (2008) Greater Connecticut, CT - (Moderate)
Tolland Co
8-Hr Ozone (1997) Greater Connecticut, CT - (Moderate)
1-Hr Ozone (1979) Greater Connecticut, CT - (Serious)
8-Hr Ozone (2008) Greater Connecticut, CT - (Moderate)
Windham Co
8-Hr Ozone (1997) Greater Connecticut, CT - (Moderate)
1-Hr Ozone (1979) Greater Connecticut, CT - (Serious)
8-Hr Ozone (2008) Greater Connecticut, CT - (Moderate)
DELAWARE
Kent Co
8-Hr Ozone (1997) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Moderate)
1-Hr Ozone (1979) Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD - (Severe 15)
New Castle Co
8-Hr Ozone (1997) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Moderate)
1-Hr Ozone (1979) Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD - (Severe 15)
8-Hr Ozone (2008) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Marginal)
Sussex Co
8-Hr Ozone (1997) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Moderate)
1-Hr Ozone (1979) Sussex Co, DE - (Marginal)
8-Hr Ozone (2008) Seaford, DE - (Marginal)
DISTRICT OF COLUMBIA
Entire District
8-Hr Ozone (1997) Washington, DC-MD-VA - (Moderate)
1-Hr Ozone (1979) Washington, DC-MD-VA - (Severe 15)
8-Hr Ozone (2008) Washington, DC-MD-VA - (Marginal)
FLORIDA
Broward Co
1-Hr Ozone (1979) Miami-Fort Lauderdale-W. Palm Beach, FL - (Moderate)
Duval Co
1-Hr Ozone (1979) Jacksonville, FL - (Section 185A)
Hillsborough Co
1-Hr Ozone (1979) Tampa-St. Petersburg-Clearwater, FL - (Marginal)
Miami-Dade Co
1-Hr Ozone (1979) Miami-Fort Lauderdale-W. Palm Beach, FL - (Moderate)
Palm Beach Co
1-Hr Ozone (1979) Miami-Fort Lauderdale-W. Palm Beach, FL - (Moderate)
Pinellas Co
1-Hr Ozone (1979) Tampa-St. Petersburg-Clearwater, FL - (Marginal)
GEORGIA
Barrow Co
8-Hr Ozone (1997) Atlanta, GA - (Moderate)
Bartow Co
8-Hr Ozone (1997) Atlanta, GA - (Moderate)
8-Hr Ozone (2008) Atlanta, GA - (Moderate)
Bibb Co
8-Hr Ozone (1997) Macon, GA - (Former Subpart 1)
Carroll Co
8-Hr Ozone (1997) Atlanta, GA - (Moderate)
Cherokee Co
8-Hr Ozone (1997) Atlanta, GA - (Moderate)
1-Hr Ozone (1979) Atlanta, GA - (Severe 15)
8-Hr Ozone (2008) Atlanta, GA - (Moderate)
Clayton Co
8-Hr Ozone (1997) Atlanta, GA - (Moderate)
1-Hr Ozone (1979) Atlanta, GA - (Severe 15)
8-Hr Ozone (2008) Atlanta, GA - (Moderate)
Cobb Co
8-Hr Ozone (1997) Atlanta, GA - (Moderate)
1-Hr Ozone (1979) Atlanta, GA - (Severe 15)
8-Hr Ozone (2008) Atlanta, GA - (Moderate)
Coweta Co
8-Hr Ozone (1997) Atlanta, GA - (Moderate)
1-Hr Ozone (1979) Atlanta, GA - (Severe 15)
8-Hr Ozone (2008) Atlanta, GA - (Moderate)
De Kalb Co
8-Hr Ozone (1997) Atlanta, GA - (Moderate)
1-Hr Ozone (1979) Atlanta, GA - (Severe 15)
8-Hr Ozone (2008) Atlanta, GA - (Moderate)
Douglas Co
8-Hr Ozone (1997) Atlanta, GA - (Moderate)
1-Hr Ozone (1979) Atlanta, GA - (Severe 15)
8-Hr Ozone (2008) Atlanta, GA - (Moderate)
Fayette Co
8-Hr Ozone (1997) Atlanta, GA - (Moderate)
1-Hr Ozone (1979) Atlanta, GA - (Severe 15)
8-Hr Ozone (2008) Atlanta, GA - (Moderate)
Forsyth Co
8-Hr Ozone (1997) Atlanta, GA - (Moderate)
1-Hr Ozone (1979) Atlanta, GA - (Severe 15)
8-Hr Ozone (2008) Atlanta, GA - (Moderate)
Fulton Co
8-Hr Ozone (1997) Atlanta, GA - (Moderate)
1-Hr Ozone (1979) Atlanta, GA - (Severe 15)
8-Hr Ozone (2008) Atlanta, GA - (Moderate)
Gwinnett Co
8-Hr Ozone (1997) Atlanta, GA - (Moderate)
1-Hr Ozone (1979) Atlanta, GA - (Severe 15)
8-Hr Ozone (2008) Atlanta, GA - (Moderate)
Hall Co
8-Hr Ozone (1997) Atlanta, GA - (Moderate)
Henry Co
8-Hr Ozone (1997) Atlanta, GA - (Moderate)
1-Hr Ozone (1979) Atlanta, GA - (Severe 15)
8-Hr Ozone (2008) Atlanta, GA - (Moderate)
Monroe Co
8-Hr Ozone (1997) * Macon, GA - (Former Subpart 1)
Murray Co
8-Hr Ozone (1997) * Murray Co (Chattahoochee Nat Forest), GA - (Former Subpart 1)
Newton Co
8-Hr Ozone (1997) Atlanta, GA - (Moderate)
8-Hr Ozone (2008) Atlanta, GA - (Moderate)
Paulding Co
8-Hr Ozone (1997) Atlanta, GA - (Moderate)
1-Hr Ozone (1979) Atlanta, GA - (Severe 15)
8-Hr Ozone (2008) Atlanta, GA - (Moderate)
Rockdale Co
8-Hr Ozone (1997) Atlanta, GA - (Moderate)
1-Hr Ozone (1979) Atlanta, GA - (Severe 15)
8-Hr Ozone (2008) Atlanta, GA - (Moderate)
Spalding Co
8-Hr Ozone (1997) Atlanta, GA - (Moderate)
Walton Co
8-Hr Ozone (1997) Atlanta, GA - (Moderate)
ILLINOIS
Cook Co
8-Hr Ozone (1997) Chicago-Gary-Lake County, IL-IN - (Moderate)
1-Hr Ozone (1979) Chicago-Gary-Lake County, IL-IN - (Severe 17)
8-Hr Ozone (2008) Chicago-Naperville, IL-IN-WI - (Moderate)
Du Page Co
8-Hr Ozone (1997) Chicago-Gary-Lake County, IL-IN - (Moderate)
1-Hr Ozone (1979) Chicago-Gary-Lake County, IL-IN - (Severe 17)
8-Hr Ozone (2008) Chicago-Naperville, IL-IN-WI - (Moderate)
Grundy Co
8-Hr Ozone (1997) * Chicago-Gary-Lake County, IL-IN - (Moderate)
1-Hr Ozone (1979) * Chicago-Gary-Lake County, IL-IN - (Severe 17)
8-Hr Ozone (2008) * Chicago-Naperville, IL-IN-WI - (Moderate)
Jersey Co
8-Hr Ozone (1997) St. Louis, MO-IL - (Moderate)
1-Hr Ozone (1979) Jersey Co, IL - (Marginal)
Kane Co
8-Hr Ozone (1997) Chicago-Gary-Lake County, IL-IN - (Moderate)
1-Hr Ozone (1979) Chicago-Gary-Lake County, IL-IN - (Severe 17)
8-Hr Ozone (2008) Chicago-Naperville, IL-IN-WI - (Moderate)
Kendall Co
8-Hr Ozone (1997) * Chicago-Gary-Lake County, IL-IN - (Moderate)
1-Hr Ozone (1979) * Chicago-Gary-Lake County, IL-IN - (Severe 17)
8-Hr Ozone (2008) * Chicago-Naperville, IL-IN-WI - (Moderate)
Lake Co
8-Hr Ozone (1997) Chicago-Gary-Lake County, IL-IN - (Moderate)
1-Hr Ozone (1979) Chicago-Gary-Lake County, IL-IN - (Severe 17)
8-Hr Ozone (2008) Chicago-Naperville, IL-IN-WI - (Moderate)
Madison Co
8-Hr Ozone (1997) St. Louis, MO-IL - (Moderate)
1-Hr Ozone (1979) St. Louis, MO-IL - (Serious)
8-Hr Ozone (2008) St. Louis-St. Charles-Farmington, MO-IL - (Marginal)
Mc Henry Co
8-Hr Ozone (1997) Chicago-Gary-Lake County, IL-IN - (Moderate)
1-Hr Ozone (1979) Chicago-Gary-Lake County, IL-IN - (Severe 17)
8-Hr Ozone (2008) Chicago-Naperville, IL-IN-WI - (Moderate)
Monroe Co
8-Hr Ozone (1997) St. Louis, MO-IL - (Moderate)
1-Hr Ozone (1979) St. Louis, MO-IL - (Serious)
8-Hr Ozone (2008) St. Louis-St. Charles-Farmington, MO-IL - (Marginal)
St Clair Co
8-Hr Ozone (1997) St. Louis, MO-IL - (Moderate)
1-Hr Ozone (1979) St. Louis, MO-IL - (Serious)
8-Hr Ozone (2008) St. Louis-St. Charles-Farmington, MO-IL - (Marginal)
Will Co
8-Hr Ozone (1997) Chicago-Gary-Lake County, IL-IN - (Moderate)
1-Hr Ozone (1979) Chicago-Gary-Lake County, IL-IN - (Severe 17)
8-Hr Ozone (2008) Chicago-Naperville, IL-IN-WI - (Moderate)
INDIANA
Allen Co
8-Hr Ozone (1997) Fort Wayne, IN - (Former Subpart 1)
Boone Co
8-Hr Ozone (1997) Indianapolis, IN - (Former Subpart 1)
Clark Co
8-Hr Ozone (1997) Louisville, KY-IN - (Former Subpart 1)
1-Hr Ozone (1979) Louisville, KY-IN - (Moderate)
Dearborn Co
8-Hr Ozone (1997) * Cincinnati-Hamilton, OH-KY-IN - (Former Subpart 1)
8-Hr Ozone (2008) * Cincinnati, OH-KY-IN - (Marginal)
Delaware Co
8-Hr Ozone (1997) Muncie, IN - (Former Subpart 1)
Elkhart Co
8-Hr Ozone (1997) South Bend-Elkhart, IN - (Former Subpart 1)
1-Hr Ozone (1979) South Bend-Elkhart, IN - (Marginal)
Floyd Co
8-Hr Ozone (1997) Louisville, KY-IN - (Former Subpart 1)
1-Hr Ozone (1979) Louisville, KY-IN - (Moderate)
Greene Co
8-Hr Ozone (1997) Greene Co, IN - (Former Subpart 1)
Hamilton Co
8-Hr Ozone (1997) Indianapolis, IN - (Former Subpart 1)
Hancock Co
8-Hr Ozone (1997) Indianapolis, IN - (Former Subpart 1)
Hendricks Co
8-Hr Ozone (1997) Indianapolis, IN - (Former Subpart 1)
Jackson Co
8-Hr Ozone (1997) Jackson Co, IN - (Former Subpart 1)
Johnson Co
8-Hr Ozone (1997) Indianapolis, IN - (Former Subpart 1)
La Porte Co
8-Hr Ozone (1997) La Porte Co., IN - (Marginal)
Lake Co
8-Hr Ozone (1997) Chicago-Gary-Lake County, IL-IN - (Moderate)
1-Hr Ozone (1979) Chicago-Gary-Lake County, IL-IN - (Severe 17)
8-Hr Ozone (2008) Chicago-Naperville, IL-IN-WI - (Moderate)
Madison Co
8-Hr Ozone (1997) Indianapolis, IN - (Former Subpart 1)
Marion Co
8-Hr Ozone (1997) Indianapolis, IN - (Former Subpart 1)
1-Hr Ozone (1979) Indianapolis, IN - (Marginal)
Morgan Co
8-Hr Ozone (1997) Indianapolis, IN - (Former Subpart 1)
Porter Co
8-Hr Ozone (1997) Chicago-Gary-Lake County, IL-IN - (Moderate)
1-Hr Ozone (1979) Chicago-Gary-Lake County, IL-IN - (Severe 17)
8-Hr Ozone (2008) Chicago-Naperville, IL-IN-WI - (Moderate)
Shelby Co
8-Hr Ozone (1997) Indianapolis, IN - (Former Subpart 1)
St Joseph Co
8-Hr Ozone (1997) South Bend-Elkhart, IN - (Former Subpart 1)
1-Hr Ozone (1979) South Bend-Elkhart, IN - (Marginal)
Vanderburgh Co
8-Hr Ozone (1997) Evansville, IN - (Former Subpart 1)
1-Hr Ozone (1979) Evansville, IN - (Marginal)
Vigo Co
8-Hr Ozone (1997) Terre Haute, IN - (Former Subpart 1)
Warrick Co
8-Hr Ozone (1997) Evansville, IN - (Former Subpart 1)
KANSAS
Johnson Co
1-Hr Ozone (1979) Kansas City, MO-KS - (Other)
Wyandotte Co
1-Hr Ozone (1979) Kansas City, MO-KS - (Other)
KENTUCKY
Boone Co
8-Hr Ozone (1997) Cincinnati-Hamilton, OH-KY-IN - (Former Subpart 1)
1-Hr Ozone (1979) Cincinnati-Hamilton, OH-KY - (Moderate)
8-Hr Ozone (2008) * Cincinnati, OH-KY-IN - (Marginal)
Boyd Co
8-Hr Ozone (1997) Huntington-Ashland, WV-KY - (Former Subpart 1)
1-Hr Ozone (1979) Huntington-Ashland, WV-KY - (Moderate)
Bullitt Co
8-Hr Ozone (1997) Louisville, KY-IN - (Former Subpart 1)
1-Hr Ozone (1979) * Louisville, KY-IN - (Moderate)
Campbell Co
8-Hr Ozone (1997) Cincinnati-Hamilton, OH-KY-IN - (Former Subpart 1)
1-Hr Ozone (1979) Cincinnati-Hamilton, OH-KY - (Moderate)
8-Hr Ozone (2008) * Cincinnati, OH-KY-IN - (Marginal)
Christian Co
8-Hr Ozone (1997) Clarksville-Hopkinsville, TN-KY - (Former Subpart 1)
Daviess Co
1-Hr Ozone (1979) Owensboro, KY - (Marginal)
Edmonson Co
1-Hr Ozone (1979) Edmonson Co, KY - (Rural Transport (Marginal))
Fayette Co
1-Hr Ozone (1979) Lexington-Fayette, KY - (Marginal)
Greenup Co
1-Hr Ozone (1979) * Huntington-Ashland, WV-KY - (Moderate)
Hancock Co
1-Hr Ozone (1979) * Owensboro, KY - (Marginal)
Jefferson Co
8-Hr Ozone (1997) Louisville, KY-IN - (Former Subpart 1)
1-Hr Ozone (1979) Louisville, KY-IN - (Moderate)
Kenton Co
8-Hr Ozone (1997) Cincinnati-Hamilton, OH-KY-IN - (Former Subpart 1)
1-Hr Ozone (1979) Cincinnati-Hamilton, OH-KY - (Moderate)
8-Hr Ozone (2008) * Cincinnati, OH-KY-IN - (Marginal)
Livingston Co
1-Hr Ozone (1979) * Paducah, KY - (Marginal)
Marshall Co
1-Hr Ozone (1979) Paducah, KY - (Marginal)
Oldham Co
8-Hr Ozone (1997) Louisville, KY-IN - (Former Subpart 1)
1-Hr Ozone (1979) * Louisville, KY-IN - (Moderate)
Scott Co
1-Hr Ozone (1979) Lexington-Fayette, KY - (Marginal)
LOUISIANA
Ascension Par
8-Hr Ozone (1997) Baton Rouge, LA - (Moderate)
1-Hr Ozone (1979) Baton Rouge, LA - (Severe 15)
8-Hr Ozone (2008) Baton Rouge, LA - (Marginal)
Beauregard Par
1-Hr Ozone (1979) Beauregard Par, LA - (Incomplete Data)
Calcasieu Par
1-Hr Ozone (1979) Lake Charles, LA - (Marginal)
East Baton Rouge Par
8-Hr Ozone (1997) Baton Rouge, LA - (Moderate)
1-Hr Ozone (1979) Baton Rouge, LA - (Severe 15)
8-Hr Ozone (2008) Baton Rouge, LA - (Marginal)
Grant Par
1-Hr Ozone (1979) Grant Par, LA - (Incomplete Data)
Iberville Par
8-Hr Ozone (1997) Baton Rouge, LA - (Moderate)
1-Hr Ozone (1979) Baton Rouge, LA - (Severe 15)
8-Hr Ozone (2008) Baton Rouge, LA - (Marginal)
Jefferson Par
1-Hr Ozone (1979) New Orleans, LA - (Section 185A)
Lafayette Par
1-Hr Ozone (1979) Lafayette, LA - (Section 185A)
Lafourche Par
1-Hr Ozone (1979) LaFourche Par, LA - (Incomplete Data)
Livingston Par
8-Hr Ozone (1997) Baton Rouge, LA - (Moderate)
1-Hr Ozone (1979) Baton Rouge, LA - (Severe 15)
8-Hr Ozone (2008) Baton Rouge, LA - (Marginal)
Orleans Par
1-Hr Ozone (1979) New Orleans, LA - (Section 185A)
Pointe Coupee Par
1-Hr Ozone (1979) Pointe Coupee Parish, LA - (Marginal)
St Bernard Par
1-Hr Ozone (1979) New Orleans, LA - (Section 185A)
St Charles Par
1-Hr Ozone (1979) New Orleans, LA - (Section 185A)
St James Par
1-Hr Ozone (1979) St James Par, LA - (Incomplete Data)
St Mary Par
1-Hr Ozone (1979) St Mary Par, LA - (Incomplete Data)
West Baton Rouge Par
8-Hr Ozone (1997) Baton Rouge, LA - (Moderate)
1-Hr Ozone (1979) Baton Rouge, LA - (Severe 15)
8-Hr Ozone (2008) Baton Rouge, LA - (Marginal)
MAINE
Androscoggin Co
8-Hr Ozone (1997) * Portland, ME - (Marginal)
1-Hr Ozone (1979) Lewiston-Auburn, ME - (Moderate)
Cumberland Co
8-Hr Ozone (1997) * Portland, ME - (Marginal)
1-Hr Ozone (1979) Portland, ME - (Moderate)
Hancock Co
8-Hr Ozone (1997) * Hancock, Knox, Lincoln and Waldo Cos, ME - (Former Subpart 1)
1-Hr Ozone (1979) Hancock & Waldo Cos, ME - (Marginal)
Kennebec Co
1-Hr Ozone (1979) Lewiston-Auburn, ME - (Moderate)
Knox Co
8-Hr Ozone (1997) * Hancock, Knox, Lincoln and Waldo Cos, ME - (Former Subpart 1)
1-Hr Ozone (1979) Knox & Lincoln Co.s, ME - (Moderate)
Lincoln Co
8-Hr Ozone (1997) * Hancock, Knox, Lincoln and Waldo Cos, ME - (Former Subpart 1)
1-Hr Ozone (1979) Knox & Lincoln Co.s, ME - (Moderate)
Sagadahoc Co
8-Hr Ozone (1997) Portland, ME - (Marginal)
1-Hr Ozone (1979) Portland, ME - (Moderate)
Waldo Co
8-Hr Ozone (1997) * Hancock, Knox, Lincoln and Waldo Cos, ME - (Former Subpart 1)
1-Hr Ozone (1979) Hancock & Waldo Cos, ME - (Marginal)
York Co
8-Hr Ozone (1997) * Portland, ME - (Marginal)
1-Hr Ozone (1979) Portland, ME - (Moderate)
MARYLAND
Anne Arundel Co
8-Hr Ozone (1997) Baltimore, MD - (Serious)
1-Hr Ozone (1979) Baltimore, MD - (Severe 15)
8-Hr Ozone (2008) Baltimore, MD - (Moderate)
Baltimore (City)
8-Hr Ozone (1997) Baltimore, MD - (Serious)
1-Hr Ozone (1979) Baltimore, MD - (Severe 15)
8-Hr Ozone (2008) Baltimore, MD - (Moderate)
Baltimore Co
8-Hr Ozone (1997) Baltimore, MD - (Serious)
1-Hr Ozone (1979) Baltimore, MD - (Severe 15)
8-Hr Ozone (2008) Baltimore, MD - (Moderate)
Calvert Co
8-Hr Ozone (1997) Washington, DC-MD-VA - (Moderate)
1-Hr Ozone (1979) Washington, DC-MD-VA - (Severe 15)
8-Hr Ozone (2008) Washington, DC-MD-VA - (Marginal)
Carroll Co
8-Hr Ozone (1997) Baltimore, MD - (Serious)
1-Hr Ozone (1979) Baltimore, MD - (Severe 15)
8-Hr Ozone (2008) Baltimore, MD - (Moderate)
Cecil Co
8-Hr Ozone (1997) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Moderate)
1-Hr Ozone (1979) Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD - (Severe 15)
8-Hr Ozone (2008) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Marginal)
Charles Co
8-Hr Ozone (1997) Washington, DC-MD-VA - (Moderate)
1-Hr Ozone (1979) Washington, DC-MD-VA - (Severe 15)
8-Hr Ozone (2008) Washington, DC-MD-VA - (Marginal)
Frederick Co
8-Hr Ozone (1997) Washington, DC-MD-VA - (Moderate)
1-Hr Ozone (1979) Washington, DC-MD-VA - (Severe 15)
8-Hr Ozone (2008) Washington, DC-MD-VA - (Marginal)
Harford Co
8-Hr Ozone (1997) Baltimore, MD - (Serious)
1-Hr Ozone (1979) Baltimore, MD - (Severe 15)
8-Hr Ozone (2008) Baltimore, MD - (Moderate)
Howard Co
8-Hr Ozone (1997) Baltimore, MD - (Serious)
1-Hr Ozone (1979) Baltimore, MD - (Severe 15)
8-Hr Ozone (2008) Baltimore, MD - (Moderate)
Kent Co
8-Hr Ozone (1997) Kent and Queen Anne's Cos, MD - (Marginal)
1-Hr Ozone (1979) Kent and Queen Anne's Co.s, MD - (Marginal)
Montgomery Co
8-Hr Ozone (1997) Washington, DC-MD-VA - (Moderate)
1-Hr Ozone (1979) Washington, DC-MD-VA - (Severe 15)
8-Hr Ozone (2008) Washington, DC-MD-VA - (Marginal)
Prince George's Co
8-Hr Ozone (1997) Washington, DC-MD-VA - (Moderate)
1-Hr Ozone (1979) Washington, DC-MD-VA - (Severe 15)
8-Hr Ozone (2008) Washington, DC-MD-VA - (Marginal)
Queen Annes Co
8-Hr Ozone (1997) Kent and Queen Anne's Cos, MD - (Marginal)
1-Hr Ozone (1979) Kent and Queen Anne's Co.s, MD - (Marginal)
MASSACHUSETTS
Barnstable Co
8-Hr Ozone (1997) Boston-Lawrence-Worcester (E. Mass), MA - (Moderate)
1-Hr Ozone (1979) Boston-Lawrence-Worcester (E. Mass), MA-NH - (Serious)
Berkshire Co
8-Hr Ozone (1997) Springfield (W. Mass), MA - (Moderate)
1-Hr Ozone (1979) Springfield (Western MA), MA - (Serious)
Bristol Co
8-Hr Ozone (1997) Boston-Lawrence-Worcester (E. Mass), MA - (Moderate)
1-Hr Ozone (1979) Boston-Lawrence-Worcester (E. Mass), MA-NH - (Serious)
Dukes Co
8-Hr Ozone (1997) Boston-Lawrence-Worcester (E. Mass), MA - (Moderate)
1-Hr Ozone (1979) Boston-Lawrence-Worcester (E. Mass), MA-NH - (Serious)
8-Hr Ozone (2008) Dukes County, MA - (Marginal)
Essex Co
8-Hr Ozone (1997) Boston-Lawrence-Worcester (E. Mass), MA - (Moderate)
1-Hr Ozone (1979) Boston-Lawrence-Worcester (E. Mass), MA-NH - (Serious)
Franklin Co
8-Hr Ozone (1997) Springfield (W. Mass), MA - (Moderate)
1-Hr Ozone (1979) Springfield (Western MA), MA - (Serious)
Hampden Co
8-Hr Ozone (1997) Springfield (W. Mass), MA - (Moderate)
1-Hr Ozone (1979) Springfield (Western MA), MA - (Serious)
Hampshire Co
8-Hr Ozone (1997) Springfield (W. Mass), MA - (Moderate)
1-Hr Ozone (1979) Springfield (Western MA), MA - (Serious)
Middlesex Co
8-Hr Ozone (1997) Boston-Lawrence-Worcester (E. Mass), MA - (Moderate)
1-Hr Ozone (1979) Boston-Lawrence-Worcester (E. Mass), MA-NH - (Serious)
Nantucket Co
8-Hr Ozone (1997) Boston-Lawrence-Worcester (E. Mass), MA - (Moderate)
1-Hr Ozone (1979) Boston-Lawrence-Worcester (E. Mass), MA-NH - (Serious)
Norfolk Co
8-Hr Ozone (1997) Boston-Lawrence-Worcester (E. Mass), MA - (Moderate)
1-Hr Ozone (1979) Boston-Lawrence-Worcester (E. Mass), MA-NH - (Serious)
Plymouth Co
8-Hr Ozone (1997) Boston-Lawrence-Worcester (E. Mass), MA - (Moderate)
1-Hr Ozone (1979) Boston-Lawrence-Worcester (E. Mass), MA-NH - (Serious)
Suffolk Co
8-Hr Ozone (1997) Boston-Lawrence-Worcester (E. Mass), MA - (Moderate)
1-Hr Ozone (1979) Boston-Lawrence-Worcester (E. Mass), MA-NH - (Serious)
Worcester Co
8-Hr Ozone (1997) Boston-Lawrence-Worcester (E. Mass), MA - (Moderate)
1-Hr Ozone (1979) Boston-Lawrence-Worcester (E. Mass), MA-NH - (Serious)
MICHIGAN
Allegan Co
8-Hr Ozone (1997) Allegan Co, MI - (Former Subpart 1)
1-Hr Ozone (1979) Allegan Co, MI - (Incomplete Data)
Bay Co
1-Hr Ozone (1979) Saginaw-Bay City-Midland, MI - (Incomplete Data)
Benzie Co
8-Hr Ozone (1997) Benzie Co, MI - (Former Subpart 1)
Berrien Co
8-Hr Ozone (1997) Benton Harbor, MI - (Former Subpart 1)
Calhoun Co
8-Hr Ozone (1997) Kalamazoo-Battle Creek, MI - (Former Subpart 1)
Cass Co
8-Hr Ozone (1997) Cass Co, MI - (Marginal)
Clinton Co
8-Hr Ozone (1997) Lansing-East Lansing, MI - (Former Subpart 1)
Eaton Co
8-Hr Ozone (1997) Lansing-East Lansing, MI - (Former Subpart 1)
Genesee Co
8-Hr Ozone (1997) Flint, MI - (Former Subpart 1)
1-Hr Ozone (1979) Flint, MI - (Section 185A)
Huron Co
8-Hr Ozone (1997) Huron Co, MI - (Former Subpart 1)
Ingham Co
8-Hr Ozone (1997) Lansing-East Lansing, MI - (Former Subpart 1)
Kalamazoo Co
8-Hr Ozone (1997) Kalamazoo-Battle Creek, MI - (Former Subpart 1)
Kent Co
8-Hr Ozone (1997) Grand Rapids, MI - (Former Subpart 1)
1-Hr Ozone (1979) Grand Rapids, MI - (Moderate)
Lapeer Co
8-Hr Ozone (1997) Flint, MI - (Former Subpart 1)
Lenawee Co
8-Hr Ozone (1997) Detroit-Ann Arbor, MI - (Marginal)
Livingston Co
8-Hr Ozone (1997) Detroit-Ann Arbor, MI - (Marginal)
1-Hr Ozone (1979) Detroit-Ann Arbor, MI - (Moderate)
Macomb Co
8-Hr Ozone (1997) Detroit-Ann Arbor, MI - (Marginal)
1-Hr Ozone (1979) Detroit-Ann Arbor, MI - (Moderate)
Mason Co
8-Hr Ozone (1997) Mason Co, MI - (Former Subpart 1)
Midland Co
1-Hr Ozone (1979) Saginaw-Bay City-Midland, MI - (Incomplete Data)
Monroe Co
8-Hr Ozone (1997) Detroit-Ann Arbor, MI - (Marginal)
1-Hr Ozone (1979) Detroit-Ann Arbor, MI - (Moderate)
Muskegon Co
8-Hr Ozone (1997) Muskegon, MI - (Marginal)
1-Hr Ozone (1979) Muskegon, MI - (Moderate)
Oakland Co
8-Hr Ozone (1997) Detroit-Ann Arbor, MI - (Marginal)
1-Hr Ozone (1979) Detroit-Ann Arbor, MI - (Moderate)
Ottawa Co
8-Hr Ozone (1997) Grand Rapids, MI - (Former Subpart 1)
1-Hr Ozone (1979) Grand Rapids, MI - (Moderate)
Saginaw Co
1-Hr Ozone (1979) Saginaw-Bay City-Midland, MI - (Incomplete Data)
St Clair Co
8-Hr Ozone (1997) Detroit-Ann Arbor, MI - (Marginal)
1-Hr Ozone (1979) Detroit-Ann Arbor, MI - (Moderate)
Van Buren Co
8-Hr Ozone (1997) Kalamazoo-Battle Creek, MI - (Former Subpart 1)
Washtenaw Co
8-Hr Ozone (1997) Detroit-Ann Arbor, MI - (Marginal)
1-Hr Ozone (1979) Detroit-Ann Arbor, MI - (Moderate)
Wayne Co
8-Hr Ozone (1997) Detroit-Ann Arbor, MI - (Marginal)
1-Hr Ozone (1979) Detroit-Ann Arbor, MI - (Moderate)
MISSISSIPPI
De Soto Co
8-Hr Ozone (2008) * Memphis, TN-MS-AR - (Marginal)
MISSOURI
Clay Co
1-Hr Ozone (1979) Kansas City, MO-KS - (Other)
Franklin Co
8-Hr Ozone (1997) St. Louis, MO-IL - (Moderate)
1-Hr Ozone (1979) St. Louis, MO-IL - (Serious)
8-Hr Ozone (2008) St. Louis-St. Charles-Farmington, MO-IL - (Marginal)
Jackson Co
1-Hr Ozone (1979) Kansas City, MO-KS - (Other)
Jefferson Co
8-Hr Ozone (1997) St. Louis, MO-IL - (Moderate)
1-Hr Ozone (1979) St. Louis, MO-IL - (Serious)
8-Hr Ozone (2008) St. Louis-St. Charles-Farmington, MO-IL - (Marginal)
Platte Co
1-Hr Ozone (1979) Kansas City, MO-KS - (Other)
St Charles Co
8-Hr Ozone (1997) St. Louis, MO-IL - (Moderate)
1-Hr Ozone (1979) St. Louis, MO-IL - (Serious)
8-Hr Ozone (2008) St. Louis-St. Charles-Farmington, MO-IL - (Marginal)
St Louis
8-Hr Ozone (1997) St. Louis, MO-IL - (Moderate)
1-Hr Ozone (1979) St. Louis, MO-IL - (Serious)
8-Hr Ozone (2008) St. Louis-St. Charles-Farmington, MO-IL - (Marginal)
St Louis Co
8-Hr Ozone (1997) St. Louis, MO-IL - (Moderate)
1-Hr Ozone (1979) St. Louis, MO-IL - (Serious)
8-Hr Ozone (2008) St. Louis-St. Charles-Farmington, MO-IL - (Marginal)
NEVADA
Clark Co
8-Hr Ozone (1997) * Las Vegas, NV - (Marginal)
Washoe Co
1-Hr Ozone (1979) Reno, NV - (Marginal)
NEW HAMPSHIRE
Cheshire Co
1-Hr Ozone (1979) Cheshire Co, NH - (Incomplete Data)
Hillsborough Co
8-Hr Ozone (1997) * Boston-Manchester-Portsmouth (SE), NH - (Moderate)
1-Hr Ozone (1979) * Boston-Lawrence-Worcester (E. Mass), MA-NH - (Serious)
1-Hr Ozone (1979) * Manchester, NH - (Marginal)
Merrimack Co
8-Hr Ozone (1997) * Boston-Manchester-Portsmouth (SE), NH - (Moderate)
1-Hr Ozone (1979) Manchester, NH - (Marginal)
Rockingham Co
8-Hr Ozone (1997) * Boston-Manchester-Portsmouth (SE), NH - (Moderate)
1-Hr Ozone (1979) * Boston-Lawrence-Worcester (E. Mass), MA-NH - (Serious)
1-Hr Ozone (1979) * Manchester, NH - (Marginal)
1-Hr Ozone (1979) * Portsmouth-Dover-Rochester, NH - (Serious)
Strafford Co
8-Hr Ozone (1997) * Boston-Manchester-Portsmouth (SE), NH - (Moderate)
1-Hr Ozone (1979) Portsmouth-Dover-Rochester, NH - (Serious)
NEW JERSEY
Atlantic Co
8-Hr Ozone (1997) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Moderate)
1-Hr Ozone (1979) Atlantic City, NJ - (Moderate)
8-Hr Ozone (2008) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Marginal)
Bergen Co
8-Hr Ozone (1997) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
1-Hr Ozone (1979) New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 17)
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
Burlington Co
8-Hr Ozone (1997) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Moderate)
1-Hr Ozone (1979) Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD - (Severe 15)
8-Hr Ozone (2008) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Marginal)
Camden Co
8-Hr Ozone (1997) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Moderate)
1-Hr Ozone (1979) Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD - (Severe 15)
8-Hr Ozone (2008) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Marginal)
Cape May Co
8-Hr Ozone (1997) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Moderate)
1-Hr Ozone (1979) Atlantic City, NJ - (Moderate)
8-Hr Ozone (2008) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Marginal)
Cumberland Co
8-Hr Ozone (1997) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Moderate)
1-Hr Ozone (1979) Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD - (Severe 15)
8-Hr Ozone (2008) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Marginal)
Essex Co
8-Hr Ozone (1997) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
1-Hr Ozone (1979) New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 17)
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
Gloucester Co
8-Hr Ozone (1997) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Moderate)
1-Hr Ozone (1979) Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD - (Severe 15)
8-Hr Ozone (2008) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Marginal)
Hudson Co
8-Hr Ozone (1997) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
1-Hr Ozone (1979) New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 17)
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
Hunterdon Co
8-Hr Ozone (1997) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
1-Hr Ozone (1979) New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 17)
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
Mercer Co
8-Hr Ozone (1997) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Moderate)
1-Hr Ozone (1979) Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD - (Severe 15)
8-Hr Ozone (2008) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Marginal)
Middlesex Co
8-Hr Ozone (1997) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
1-Hr Ozone (1979) New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 17)
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
Monmouth Co
8-Hr Ozone (1997) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
1-Hr Ozone (1979) New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 17)
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
Morris Co
8-Hr Ozone (1997) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
1-Hr Ozone (1979) New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 17)
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
Ocean Co
8-Hr Ozone (1997) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Moderate)
1-Hr Ozone (1979) New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 17)
8-Hr Ozone (2008) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Marginal)
Passaic Co
8-Hr Ozone (1997) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
1-Hr Ozone (1979) New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 17)
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
Salem Co
8-Hr Ozone (1997) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Moderate)
1-Hr Ozone (1979) Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD - (Severe 15)
8-Hr Ozone (2008) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Marginal)
Somerset Co
8-Hr Ozone (1997) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
1-Hr Ozone (1979) New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 17)
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
Sussex Co
8-Hr Ozone (1997) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
1-Hr Ozone (1979) New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 17)
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
Union Co
8-Hr Ozone (1997) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
1-Hr Ozone (1979) New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 17)
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
Warren Co
8-Hr Ozone (1997) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
1-Hr Ozone (1979) Allentown-Bethlehem-Easton, PA-NJ - (Marginal)
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
NEW MEXICO
Dona Ana Co
1-Hr Ozone (1979) * Sunland Park, NM (New Area 1995) - (Marginal)
NEW YORK
Albany Co
8-Hr Ozone (1997) Albany-Schenectady-Troy, NY - (Marginal)
1-Hr Ozone (1979) Albany-Schenectady-Troy, NY - (Marginal)
Bronx Co
8-Hr Ozone (1997) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
1-Hr Ozone (1979) New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 17)
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
Chautauqua Co
8-Hr Ozone (1997) Jamestown, NY - (Moderate)
8-Hr Ozone (2008) Jamestown, NY - (Marginal)
Dutchess Co
8-Hr Ozone (1997) Poughkeepsie, NY - (Moderate)
1-Hr Ozone (1979) Poughkeepsie, NY - (Moderate)
Erie Co
8-Hr Ozone (1997) Buffalo-Niagara Falls, NY - (Moderate)
1-Hr Ozone (1979) Buffalo-Niagara Falls, NY - (Marginal)
Essex Co
8-Hr Ozone (1997) * Essex Co (Whiteface Mtn), NY - (Marginal)
1-Hr Ozone (1979) * Essex Co, NY - (Rural Transport (Marginal))
Genesee Co
8-Hr Ozone (1997) Rochester, NY - (Marginal)
Greene Co
8-Hr Ozone (1997) Albany-Schenectady-Troy, NY - (Marginal)
1-Hr Ozone (1979) Albany-Schenectady-Troy, NY - (Marginal)
Jefferson Co
8-Hr Ozone (1997) Jefferson Co, NY - (Moderate)
1-Hr Ozone (1979) Jefferson Co, NY - (Marginal)
Kings Co
8-Hr Ozone (1997) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
1-Hr Ozone (1979) New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 17)
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
Livingston Co
8-Hr Ozone (1997) Rochester, NY - (Marginal)
Monroe Co
8-Hr Ozone (1997) Rochester, NY - (Marginal)
Montgomery Co
8-Hr Ozone (1997) Albany-Schenectady-Troy, NY - (Marginal)
1-Hr Ozone (1979) Albany-Schenectady-Troy, NY - (Marginal)
Nassau Co
8-Hr Ozone (1997) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
1-Hr Ozone (1979) New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 17)
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
New York Co
8-Hr Ozone (1997) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
1-Hr Ozone (1979) New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 17)
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
Niagara Co
8-Hr Ozone (1997) Buffalo-Niagara Falls, NY - (Moderate)
1-Hr Ozone (1979) Buffalo-Niagara Falls, NY - (Marginal)
Ontario Co
8-Hr Ozone (1997) Rochester, NY - (Marginal)
Orange Co
8-Hr Ozone (1997) Poughkeepsie, NY - (Moderate)
1-Hr Ozone (1979) * New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 17)
1-Hr Ozone (1979) * Poughkeepsie, NY - (Moderate)
Orleans Co
8-Hr Ozone (1997) Rochester, NY - (Marginal)
Putnam Co
8-Hr Ozone (1997) Poughkeepsie, NY - (Moderate)
1-Hr Ozone (1979) Poughkeepsie, NY - (Moderate)
Queens Co
8-Hr Ozone (1997) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
1-Hr Ozone (1979) New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 17)
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
Rensselaer Co
8-Hr Ozone (1997) Albany-Schenectady-Troy, NY - (Marginal)
1-Hr Ozone (1979) Albany-Schenectady-Troy, NY - (Marginal)
Richmond Co
8-Hr Ozone (1997) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
1-Hr Ozone (1979) New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 17)
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
Rockland Co
8-Hr Ozone (1997) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
1-Hr Ozone (1979) New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 17)
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
Saratoga Co
8-Hr Ozone (1997) Albany-Schenectady-Troy, NY - (Marginal)
1-Hr Ozone (1979) Albany-Schenectady-Troy, NY - (Marginal)
Schenectady Co
8-Hr Ozone (1997) Albany-Schenectady-Troy, NY - (Marginal)
1-Hr Ozone (1979) Albany-Schenectady-Troy, NY - (Marginal)
Schoharie Co
8-Hr Ozone (1997) Albany-Schenectady-Troy, NY - (Marginal)
Suffolk Co
8-Hr Ozone (1997) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
1-Hr Ozone (1979) New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 17)
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
Wayne Co
8-Hr Ozone (1997) Rochester, NY - (Marginal)
Westchester Co
8-Hr Ozone (1997) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
1-Hr Ozone (1979) New York-N. New Jersey-Long Island, NY-NJ-CT - (Severe 17)
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
NORTH CAROLINA
Cabarrus Co
8-Hr Ozone (1997) Charlotte-Gastonia-Rock Hill, NC-SC - (Moderate)
8-Hr Ozone (2008) * Charlotte-Rock Hill, NC-SC - (Marginal)
Chatham Co
8-Hr Ozone (1997) * Raleigh-Durham-Chapel Hill, NC - (Former Subpart 1)
Davidson Co
1-Hr Ozone (1979) Greensboro-Winston-Salem-High Point, NC - (Moderate)
Davie Co
1-Hr Ozone (1979) * Greensboro-Winston-Salem-High Point, NC - (Moderate)
Durham Co
8-Hr Ozone (1997) Raleigh-Durham-Chapel Hill, NC - (Former Subpart 1)
1-Hr Ozone (1979) Raleigh-Durham, NC - (Moderate)
Edgecombe Co
8-Hr Ozone (1997) Rocky Mount, NC - (Former Subpart 1)
Forsyth Co
1-Hr Ozone (1979) Greensboro-Winston-Salem-High Point, NC - (Moderate)
Franklin Co
8-Hr Ozone (1997) Raleigh-Durham-Chapel Hill, NC - (Former Subpart 1)
Gaston Co
8-Hr Ozone (1997) Charlotte-Gastonia-Rock Hill, NC-SC - (Moderate)
1-Hr Ozone (1979) Charlotte-Gastonia, NC - (Moderate)
8-Hr Ozone (2008) * Charlotte-Rock Hill, NC-SC - (Marginal)
Granville Co
8-Hr Ozone (1997) Raleigh-Durham-Chapel Hill, NC - (Former Subpart 1)
1-Hr Ozone (1979) * Raleigh-Durham, NC - (Moderate)
Guilford Co
1-Hr Ozone (1979) Greensboro-Winston-Salem-High Point, NC - (Moderate)
Haywood Co
8-Hr Ozone (1997) * Haywood and Swain Cos (Great Smoky NP), NC - (Former Subpart 1)
Iredell Co
8-Hr Ozone (1997) * Charlotte-Gastonia-Rock Hill, NC-SC - (Moderate)
8-Hr Ozone (2008) * Charlotte-Rock Hill, NC-SC - (Marginal)
Johnston Co
8-Hr Ozone (1997) Raleigh-Durham-Chapel Hill, NC - (Former Subpart 1)
Lincoln Co
8-Hr Ozone (1997) Charlotte-Gastonia-Rock Hill, NC-SC - (Moderate)
8-Hr Ozone (2008) * Charlotte-Rock Hill, NC-SC - (Marginal)
Mecklenburg Co
8-Hr Ozone (1997) Charlotte-Gastonia-Rock Hill, NC-SC - (Moderate)
1-Hr Ozone (1979) Charlotte-Gastonia, NC - (Moderate)
8-Hr Ozone (2008) Charlotte-Rock Hill, NC-SC - (Marginal)
Nash Co
8-Hr Ozone (1997) Rocky Mount, NC - (Former Subpart 1)
Orange Co
8-Hr Ozone (1997) Raleigh-Durham-Chapel Hill, NC - (Former Subpart 1)
Person Co
8-Hr Ozone (1997) Raleigh-Durham-Chapel Hill, NC - (Former Subpart 1)
Rowan Co
8-Hr Ozone (1997) Charlotte-Gastonia-Rock Hill, NC-SC - (Moderate)
8-Hr Ozone (2008) * Charlotte-Rock Hill, NC-SC - (Marginal)
Swain Co
8-Hr Ozone (1997) * Haywood and Swain Cos (Great Smoky NP), NC - (Former Subpart 1)
Union Co
8-Hr Ozone (1997) Charlotte-Gastonia-Rock Hill, NC-SC - (Moderate)
8-Hr Ozone (2008) * Charlotte-Rock Hill, NC-SC - (Marginal)
Wake Co
8-Hr Ozone (1997) Raleigh-Durham-Chapel Hill, NC - (Former Subpart 1)
1-Hr Ozone (1979) Raleigh-Durham, NC - (Moderate)
OHIO
Allen Co
8-Hr Ozone (1997) Lima, OH - (Former Subpart 1)
Ashtabula Co
8-Hr Ozone (1997) Cleveland-Akron-Lorain, OH - (Moderate)
1-Hr Ozone (1979) Cleveland-Akron-Lorain, OH - (Moderate)
8-Hr Ozone (2008) Cleveland-Akron-Lorain, OH - (Marginal)
Belmont Co
8-Hr Ozone (1997) Wheeling, WV-OH - (Former Subpart 1)
Butler Co
8-Hr Ozone (1997) Cincinnati-Hamilton, OH-KY-IN - (Former Subpart 1)
1-Hr Ozone (1979) Cincinnati-Hamilton, OH-KY - (Moderate)
8-Hr Ozone (2008) Cincinnati, OH-KY-IN - (Marginal)
Clark Co
8-Hr Ozone (1997) Dayton-Springfield, OH - (Former Subpart 1)
1-Hr Ozone (1979) Dayton-Springfield, OH - (Moderate)
Clermont Co
8-Hr Ozone (1997) Cincinnati-Hamilton, OH-KY-IN - (Former Subpart 1)
1-Hr Ozone (1979) Cincinnati-Hamilton, OH-KY - (Moderate)
8-Hr Ozone (2008) Cincinnati, OH-KY-IN - (Marginal)
Clinton Co
8-Hr Ozone (1997) Cincinnati-Hamilton, OH-KY-IN - (Former Subpart 1)
1-Hr Ozone (1979) Clinton Co, OH - (Section 185A)
8-Hr Ozone (2008) Cincinnati, OH-KY-IN - (Marginal)
Columbiana Co
8-Hr Ozone (1997) Youngstown-Warren-Sharon, OH-PA - (Former Subpart 1)
1-Hr Ozone (1979) Columbiana Co, OH - (Incomplete Data)
Cuyahoga Co
8-Hr Ozone (1997) Cleveland-Akron-Lorain, OH - (Moderate)
1-Hr Ozone (1979) Cleveland-Akron-Lorain, OH - (Moderate)
8-Hr Ozone (2008) Cleveland-Akron-Lorain, OH - (Marginal)
Delaware Co
8-Hr Ozone (1997) Columbus, OH - (Former Subpart 1)
1-Hr Ozone (1979) Columbus, OH - (Marginal)
8-Hr Ozone (2008) Columbus, OH - (Marginal)
Fairfield Co
8-Hr Ozone (1997) Columbus, OH - (Former Subpart 1)
8-Hr Ozone (2008) Columbus, OH - (Marginal)
Franklin Co
8-Hr Ozone (1997) Columbus, OH - (Former Subpart 1)
1-Hr Ozone (1979) Columbus, OH - (Marginal)
8-Hr Ozone (2008) Columbus, OH - (Marginal)
Geauga Co
8-Hr Ozone (1997) Cleveland-Akron-Lorain, OH - (Moderate)
1-Hr Ozone (1979) Cleveland-Akron-Lorain, OH - (Moderate)
8-Hr Ozone (2008) Cleveland-Akron-Lorain, OH - (Marginal)
Greene Co
8-Hr Ozone (1997) Dayton-Springfield, OH - (Former Subpart 1)
1-Hr Ozone (1979) Dayton-Springfield, OH - (Moderate)
Hamilton Co
8-Hr Ozone (1997) Cincinnati-Hamilton, OH-KY-IN - (Former Subpart 1)
1-Hr Ozone (1979) Cincinnati-Hamilton, OH-KY - (Moderate)
8-Hr Ozone (2008) Cincinnati, OH-KY-IN - (Marginal)
Jefferson Co
8-Hr Ozone (1997) Steubenville-Weirton, OH-WV - (Former Subpart 1)
1-Hr Ozone (1979) Steubenville, OH - (Section 185A)
Knox Co
8-Hr Ozone (1997) Columbus, OH - (Former Subpart 1)
8-Hr Ozone (2008) Columbus, OH - (Marginal)
Lake Co
8-Hr Ozone (1997) Cleveland-Akron-Lorain, OH - (Moderate)
1-Hr Ozone (1979) Cleveland-Akron-Lorain, OH - (Moderate)
8-Hr Ozone (2008) Cleveland-Akron-Lorain, OH - (Marginal)
Licking Co
8-Hr Ozone (1997) Columbus, OH - (Former Subpart 1)
1-Hr Ozone (1979) Columbus, OH - (Marginal)
8-Hr Ozone (2008) Columbus, OH - (Marginal)
Lorain Co
8-Hr Ozone (1997) Cleveland-Akron-Lorain, OH - (Moderate)
1-Hr Ozone (1979) Cleveland-Akron-Lorain, OH - (Moderate)
8-Hr Ozone (2008) Cleveland-Akron-Lorain, OH - (Marginal)
Lucas Co
8-Hr Ozone (1997) Toledo, OH - (Former Subpart 1)
1-Hr Ozone (1979) Toledo, OH - (Moderate)
Madison Co
8-Hr Ozone (1997) Columbus, OH - (Former Subpart 1)
8-Hr Ozone (2008) Columbus, OH - (Marginal)
Mahoning Co
8-Hr Ozone (1997) Youngstown-Warren-Sharon, OH-PA - (Former Subpart 1)
1-Hr Ozone (1979) Youngstown-Warren-Sharon, OH-PA (OH portion) - (Marginal)
Medina Co
8-Hr Ozone (1997) Cleveland-Akron-Lorain, OH - (Moderate)
1-Hr Ozone (1979) Cleveland-Akron-Lorain, OH - (Moderate)
8-Hr Ozone (2008) Cleveland-Akron-Lorain, OH - (Marginal)
Miami Co
8-Hr Ozone (1997) Dayton-Springfield, OH - (Former Subpart 1)
1-Hr Ozone (1979) Dayton-Springfield, OH - (Moderate)
Montgomery Co
8-Hr Ozone (1997) Dayton-Springfield, OH - (Former Subpart 1)
1-Hr Ozone (1979) Dayton-Springfield, OH - (Moderate)
Portage Co
8-Hr Ozone (1997) Cleveland-Akron-Lorain, OH - (Moderate)
1-Hr Ozone (1979) Cleveland-Akron-Lorain, OH - (Moderate)
8-Hr Ozone (2008) Cleveland-Akron-Lorain, OH - (Marginal)
Preble Co
1-Hr Ozone (1979) Preble Co, OH - (Section 185A)
Stark Co
8-Hr Ozone (1997) Canton-Massillon, OH - (Former Subpart 1)
1-Hr Ozone (1979) Canton, OH - (Marginal)
Summit Co
8-Hr Ozone (1997) Cleveland-Akron-Lorain, OH - (Moderate)
1-Hr Ozone (1979) Cleveland-Akron-Lorain, OH - (Moderate)
8-Hr Ozone (2008) Cleveland-Akron-Lorain, OH - (Marginal)
Trumbull Co
8-Hr Ozone (1997) Youngstown-Warren-Sharon, OH-PA - (Former Subpart 1)
1-Hr Ozone (1979) Youngstown-Warren-Sharon, OH-PA (OH portion) - (Marginal)
Warren Co
8-Hr Ozone (1997) Cincinnati-Hamilton, OH-KY-IN - (Former Subpart 1)
1-Hr Ozone (1979) Cincinnati-Hamilton, OH-KY - (Moderate)
8-Hr Ozone (2008) Cincinnati, OH-KY-IN - (Marginal)
Washington Co
8-Hr Ozone (1997) Parkersburg-Marietta, WV-OH - (Former Subpart 1)
Wood Co
8-Hr Ozone (1997) Toledo, OH - (Former Subpart 1)
1-Hr Ozone (1979) Toledo, OH - (Moderate)
OREGON
Clackamas Co
1-Hr Ozone (1979) * Portland-Vancouver AQMA, OR-WA - (Marginal)
Marion Co
1-Hr Ozone (1979) * Salem, OR - (Incomplete Data)
Multnomah Co
1-Hr Ozone (1979) * Portland-Vancouver AQMA, OR-WA - (Marginal)
Polk Co
1-Hr Ozone (1979) * Salem, OR - (Incomplete Data)
Washington Co
1-Hr Ozone (1979) * Portland-Vancouver AQMA, OR-WA - (Marginal)
PENNSYLVANIA
Adams Co
8-Hr Ozone (1997) York, PA - (Former Subpart 1)
1-Hr Ozone (1979) York, PA - (Marginal)
Allegheny Co
8-Hr Ozone (1997) Pittsburgh-Beaver Valley, PA - (Moderate)
1-Hr Ozone (1979) Pittsburgh-Beaver Valley, PA - (Moderate)
8-Hr Ozone (2008) Pittsburgh-Beaver Valley, PA - (Marginal)
Armstrong Co
8-Hr Ozone (1997) Pittsburgh-Beaver Valley, PA - (Moderate)
1-Hr Ozone (1979) Pittsburgh-Beaver Valley, PA - (Moderate)
8-Hr Ozone (2008) Pittsburgh-Beaver Valley, PA - (Marginal)
Beaver Co
8-Hr Ozone (1997) Pittsburgh-Beaver Valley, PA - (Moderate)
1-Hr Ozone (1979) Pittsburgh-Beaver Valley, PA - (Moderate)
8-Hr Ozone (2008) Pittsburgh-Beaver Valley, PA - (Marginal)
Berks Co
8-Hr Ozone (1997) Reading, PA - (Former Subpart 1)
1-Hr Ozone (1979) Reading, PA - (Moderate)
8-Hr Ozone (2008) Reading, PA - (Marginal)
Blair Co
8-Hr Ozone (1997) Altoona, PA - (Former Subpart 1)
1-Hr Ozone (1979) Altoona, PA - (Marginal)
Bucks Co
8-Hr Ozone (1997) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Moderate)
1-Hr Ozone (1979) Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD - (Severe 15)
8-Hr Ozone (2008) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Marginal)
Butler Co
8-Hr Ozone (1997) Pittsburgh-Beaver Valley, PA - (Moderate)
1-Hr Ozone (1979) Pittsburgh-Beaver Valley, PA - (Moderate)
8-Hr Ozone (2008) Pittsburgh-Beaver Valley, PA - (Marginal)
Cambria Co
8-Hr Ozone (1997) Johnstown, PA - (Former Subpart 1)
1-Hr Ozone (1979) Johnstown, PA - (Marginal)
Carbon Co
8-Hr Ozone (1997) Allentown-Bethlehem-Easton, PA - (Former Subpart 1)
1-Hr Ozone (1979) Allentown-Bethlehem-Easton, PA-NJ - (Marginal)
8-Hr Ozone (2008) Allentown-Bethlehem-Easton, PA - (Marginal)
Centre Co
8-Hr Ozone (1997) State College, PA - (Former Subpart 1)
Chester Co
8-Hr Ozone (1997) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Moderate)
1-Hr Ozone (1979) Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD - (Severe 15)
8-Hr Ozone (2008) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Marginal)
Clearfield Co
8-Hr Ozone (1997) Clearfield and Indiana Cos, PA - (Former Subpart 1)
Columbia Co
1-Hr Ozone (1979) Scranton-Wilkes-Barre, PA - (Marginal)
Crawford Co
1-Hr Ozone (1979) Crawford Co, PA - (Incomplete Data)
Cumberland Co
8-Hr Ozone (1997) Harrisburg-Lebanon-Carlisle, PA - (Former Subpart 1)
1-Hr Ozone (1979) Harrisburg-Lebanon-Carlisle, PA - (Marginal)
Dauphin Co
8-Hr Ozone (1997) Harrisburg-Lebanon-Carlisle, PA - (Former Subpart 1)
1-Hr Ozone (1979) Harrisburg-Lebanon-Carlisle, PA - (Marginal)
Delaware Co
8-Hr Ozone (1997) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Moderate)
1-Hr Ozone (1979) Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD - (Severe 15)
8-Hr Ozone (2008) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Marginal)
Erie Co
8-Hr Ozone (1997) Erie, PA - (Former Subpart 1)
1-Hr Ozone (1979) Erie, PA - (Marginal)
Fayette Co
8-Hr Ozone (1997) Pittsburgh-Beaver Valley, PA - (Moderate)
1-Hr Ozone (1979) Pittsburgh-Beaver Valley, PA - (Moderate)
8-Hr Ozone (2008) Pittsburgh-Beaver Valley, PA - (Marginal)
Franklin Co
8-Hr Ozone (1997) Franklin Co, PA - (Former Subpart 1)
1-Hr Ozone (1979) Franklin Co, PA - (Incomplete Data)
Greene Co
8-Hr Ozone (1997) Greene Co, PA - (Former Subpart 1)
1-Hr Ozone (1979) Greene Co, PA - (Incomplete Data)
Indiana Co
8-Hr Ozone (1997) Clearfield and Indiana Cos, PA - (Former Subpart 1)
Juniata Co
1-Hr Ozone (1979) Juniata Co, PA - (Incomplete Data)
Lackawanna Co
8-Hr Ozone (1997) Scranton-Wilkes-Barre, PA - (Former Subpart 1)
1-Hr Ozone (1979) Scranton-Wilkes-Barre, PA - (Marginal)
Lancaster Co
8-Hr Ozone (1997) Lancaster, PA - (Marginal)
1-Hr Ozone (1979) Lancaster, PA - (Marginal)
8-Hr Ozone (2008) Lancaster, PA - (Marginal)
Lawrence Co
1-Hr Ozone (1979) Lawrence Co, PA - (Incomplete Data)
Lebanon Co
8-Hr Ozone (1997) Harrisburg-Lebanon-Carlisle, PA - (Former Subpart 1)
1-Hr Ozone (1979) Harrisburg-Lebanon-Carlisle, PA - (Marginal)
Lehigh Co
8-Hr Ozone (1997) Allentown-Bethlehem-Easton, PA - (Former Subpart 1)
1-Hr Ozone (1979) Allentown-Bethlehem-Easton, PA-NJ - (Marginal)
8-Hr Ozone (2008) Allentown-Bethlehem-Easton, PA - (Marginal)
Luzerne Co
8-Hr Ozone (1997) Scranton-Wilkes-Barre, PA - (Former Subpart 1)
1-Hr Ozone (1979) Scranton-Wilkes-Barre, PA - (Marginal)
Mercer Co
8-Hr Ozone (1997) Youngstown-Warren-Sharon, OH-PA - (Former Subpart 1)
1-Hr Ozone (1979) Youngstown-Warren-Sharon, OH-PA (PA portion) - (Marginal)
Monroe Co
8-Hr Ozone (1997) Scranton-Wilkes-Barre, PA - (Former Subpart 1)
1-Hr Ozone (1979) Scranton-Wilkes-Barre, PA - (Marginal)
Montgomery Co
8-Hr Ozone (1997) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Moderate)
1-Hr Ozone (1979) Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD - (Severe 15)
8-Hr Ozone (2008) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Marginal)
Northampton Co
8-Hr Ozone (1997) Allentown-Bethlehem-Easton, PA - (Former Subpart 1)
1-Hr Ozone (1979) Allentown-Bethlehem-Easton, PA-NJ - (Marginal)
8-Hr Ozone (2008) Allentown-Bethlehem-Easton, PA - (Marginal)
Northumberland Co
1-Hr Ozone (1979) Northumberland Co, PA - (Incomplete Data)
Perry Co
8-Hr Ozone (1997) Harrisburg-Lebanon-Carlisle, PA - (Former Subpart 1)
1-Hr Ozone (1979) Harrisburg-Lebanon-Carlisle, PA - (Marginal)
Philadelphia Co
8-Hr Ozone (1997) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Moderate)
1-Hr Ozone (1979) Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD - (Severe 15)
8-Hr Ozone (2008) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Marginal)
Pike Co
1-Hr Ozone (1979) Pike Co, PA - (Incomplete Data)
Schuylkill Co
1-Hr Ozone (1979) Schuylkill Co, PA - (Incomplete Data)
Snyder Co
1-Hr Ozone (1979) Snyder Co, PA - (Incomplete Data)
Somerset Co
1-Hr Ozone (1979) Johnstown, PA - (Marginal)
Susquehanna Co
1-Hr Ozone (1979) Susquehanna Co, PA - (Incomplete Data)
Tioga Co
8-Hr Ozone (1997) Tioga Co, PA - (Former Subpart 1)
Warren Co
1-Hr Ozone (1979) Warren Co, PA - (Incomplete Data)
Washington Co
8-Hr Ozone (1997) Pittsburgh-Beaver Valley, PA - (Moderate)
1-Hr Ozone (1979) Pittsburgh-Beaver Valley, PA - (Moderate)
8-Hr Ozone (2008) Pittsburgh-Beaver Valley, PA - (Marginal)
Wayne Co
1-Hr Ozone (1979) Wayne Co, PA - (Incomplete Data)
Westmoreland Co
8-Hr Ozone (1997) Pittsburgh-Beaver Valley, PA - (Moderate)
1-Hr Ozone (1979) Pittsburgh-Beaver Valley, PA - (Moderate)
8-Hr Ozone (2008) Pittsburgh-Beaver Valley, PA - (Marginal)
Wyoming Co
8-Hr Ozone (1997) Scranton-Wilkes-Barre, PA - (Former Subpart 1)
1-Hr Ozone (1979) Scranton-Wilkes-Barre, PA - (Marginal)
York Co
8-Hr Ozone (1997) York, PA - (Former Subpart 1)
1-Hr Ozone (1979) York, PA - (Marginal)
RHODE ISLAND
Bristol Co
8-Hr Ozone (1997) Providence (all of RI), RI - (Moderate)
1-Hr Ozone (1979) Providence (all of RI), RI - (Serious)
Kent Co
8-Hr Ozone (1997) Providence (all of RI), RI - (Moderate)
1-Hr Ozone (1979) Providence (all of RI), RI - (Serious)
Newport Co
8-Hr Ozone (1997) Providence (all of RI), RI - (Moderate)
1-Hr Ozone (1979) Providence (all of RI), RI - (Serious)
Providence Co
8-Hr Ozone (1997) Providence (all of RI), RI - (Moderate)
1-Hr Ozone (1979) Providence (all of RI), RI - (Serious)
Washington Co
8-Hr Ozone (1997) Providence (all of RI), RI - (Moderate)
1-Hr Ozone (1979) Providence (all of RI), RI - (Serious)
SOUTH CAROLINA
Cherokee Co
1-Hr Ozone (1979) Cherokee Co, SC - (Marginal)
York Co
8-Hr Ozone (1997) * Charlotte-Gastonia-Rock Hill, NC-SC - (Moderate)
8-Hr Ozone (2008) * Charlotte-Rock Hill, NC-SC - (Marginal)
TENNESSEE
Anderson Co
8-Hr Ozone (1997) Knoxville, TN - (Former Subpart 1)
8-Hr Ozone (2008) * Knoxville, TN - (Marginal)
Blount Co
8-Hr Ozone (1997) Knoxville, TN - (Former Subpart 1)
8-Hr Ozone (2008) Knoxville, TN - (Marginal)
Cocke Co
8-Hr Ozone (1997) * Knoxville, TN - (Former Subpart 1)
Davidson Co
1-Hr Ozone (1979) Nashville, TN - (Moderate)
Jefferson Co
8-Hr Ozone (1997) Knoxville, TN - (Former Subpart 1)
Knox Co
8-Hr Ozone (1997) Knoxville, TN - (Former Subpart 1)
1-Hr Ozone (1979) Knoxville, TN - (Marginal)
8-Hr Ozone (2008) Knoxville, TN - (Marginal)
Loudon Co
8-Hr Ozone (1997) Knoxville, TN - (Former Subpart 1)
Montgomery Co
8-Hr Ozone (1997) Clarksville-Hopkinsville, TN-KY - (Former Subpart 1)
Rutherford Co
1-Hr Ozone (1979) Nashville, TN - (Moderate)
Sevier Co
8-Hr Ozone (1997) Knoxville, TN - (Former Subpart 1)
Shelby Co
8-Hr Ozone (1997) Memphis, TN-AR - (Moderate)
1-Hr Ozone (1979) Memphis, TN - (Marginal)
8-Hr Ozone (2008) Memphis, TN-MS-AR - (Marginal)
Sumner Co
1-Hr Ozone (1979) Nashville, TN - (Moderate)
Williamson Co
1-Hr Ozone (1979) Nashville, TN - (Moderate)
Wilson Co
1-Hr Ozone (1979) Nashville, TN - (Moderate)
TEXAS
Brazoria Co
8-Hr Ozone (1997) Houston-Galveston-Brazoria, TX - (Severe 15)
1-Hr Ozone (1979) Houston-Galveston-Brazoria, TX - (Severe 17)
8-Hr Ozone (2008) Houston-Galveston-Brazoria, TX - (Moderate)
Chambers Co
8-Hr Ozone (1997) Houston-Galveston-Brazoria, TX - (Severe 15)
1-Hr Ozone (1979) Houston-Galveston-Brazoria, TX - (Severe 17)
8-Hr Ozone (2008) Houston-Galveston-Brazoria, TX - (Moderate)
Collin Co
8-Hr Ozone (1997) Dallas-Fort Worth, TX - (Serious)
1-Hr Ozone (1979) Dallas-Fort Worth, TX - (Serious)
8-Hr Ozone (2008) Dallas-Fort Worth, TX - (Moderate)
Dallas Co
8-Hr Ozone (1997) Dallas-Fort Worth, TX - (Serious)
1-Hr Ozone (1979) Dallas-Fort Worth, TX - (Serious)
8-Hr Ozone (2008) Dallas-Fort Worth, TX - (Moderate)
Denton Co
8-Hr Ozone (1997) Dallas-Fort Worth, TX - (Serious)
1-Hr Ozone (1979) Dallas-Fort Worth, TX - (Serious)
8-Hr Ozone (2008) Dallas-Fort Worth, TX - (Moderate)
El Paso Co
1-Hr Ozone (1979) El Paso, TX - (Serious)
Ellis Co
8-Hr Ozone (1997) Dallas-Fort Worth, TX - (Serious)
8-Hr Ozone (2008) Dallas-Fort Worth, TX - (Moderate)
Fort Bend Co
8-Hr Ozone (1997) Houston-Galveston-Brazoria, TX - (Severe 15)
1-Hr Ozone (1979) Houston-Galveston-Brazoria, TX - (Severe 17)
8-Hr Ozone (2008) Houston-Galveston-Brazoria, TX - (Moderate)
Galveston Co
8-Hr Ozone (1997) Houston-Galveston-Brazoria, TX - (Severe 15)
1-Hr Ozone (1979) Houston-Galveston-Brazoria, TX - (Severe 17)
8-Hr Ozone (2008) Houston-Galveston-Brazoria, TX - (Moderate)
Hardin Co
8-Hr Ozone (1997) Beaumont-Port Arthur, TX - (Moderate)
1-Hr Ozone (1979) Beaumont-Port Arthur, TX - (Serious)
Harris Co
8-Hr Ozone (1997) Houston-Galveston-Brazoria, TX - (Severe 15)
1-Hr Ozone (1979) Houston-Galveston-Brazoria, TX - (Severe 17)
8-Hr Ozone (2008) Houston-Galveston-Brazoria, TX - (Moderate)
Jefferson Co
8-Hr Ozone (1997) Beaumont-Port Arthur, TX - (Moderate)
1-Hr Ozone (1979) Beaumont-Port Arthur, TX - (Serious)
Johnson Co
8-Hr Ozone (1997) Dallas-Fort Worth, TX - (Serious)
8-Hr Ozone (2008) Dallas-Fort Worth, TX - (Moderate)
Kaufman Co
8-Hr Ozone (1997) Dallas-Fort Worth, TX - (Serious)
8-Hr Ozone (2008) Dallas-Fort Worth, TX - (Moderate)
Liberty Co
8-Hr Ozone (1997) Houston-Galveston-Brazoria, TX - (Severe 15)
1-Hr Ozone (1979) Houston-Galveston-Brazoria, TX - (Severe 17)
8-Hr Ozone (2008) Houston-Galveston-Brazoria, TX - (Moderate)
Montgomery Co
8-Hr Ozone (1997) Houston-Galveston-Brazoria, TX - (Severe 15)
1-Hr Ozone (1979) Houston-Galveston-Brazoria, TX - (Severe 17)
8-Hr Ozone (2008) Houston-Galveston-Brazoria, TX - (Moderate)
Orange Co
8-Hr Ozone (1997) Beaumont-Port Arthur, TX - (Moderate)
1-Hr Ozone (1979) Beaumont-Port Arthur, TX - (Serious)
Parker Co
8-Hr Ozone (1997) Dallas-Fort Worth, TX - (Serious)
8-Hr Ozone (2008) Dallas-Fort Worth, TX - (Moderate)
Rockwall Co
8-Hr Ozone (1997) Dallas-Fort Worth, TX - (Serious)
8-Hr Ozone (2008) Dallas-Fort Worth, TX - (Moderate)
Tarrant Co
8-Hr Ozone (1997) Dallas-Fort Worth, TX - (Serious)
1-Hr Ozone (1979) Dallas-Fort Worth, TX - (Serious)
8-Hr Ozone (2008) Dallas-Fort Worth, TX - (Moderate)
Victoria Co
1-Hr Ozone (1979) Victoria, TX - (Incomplete Data)
Waller Co
8-Hr Ozone (1997) Houston-Galveston-Brazoria, TX - (Severe 15)
1-Hr Ozone (1979) Houston-Galveston-Brazoria, TX - (Severe 17)
8-Hr Ozone (2008) Houston-Galveston-Brazoria, TX - (Moderate)
Wise Co
8-Hr Ozone (2008) Dallas-Fort Worth, TX - (Moderate)
UTAH
Davis Co
1-Hr Ozone (1979) Salt Lake City, UT - (Moderate)
Salt Lake Co
1-Hr Ozone (1979) Salt Lake City, UT - (Moderate)
VIRGINIA
Alexandria
8-Hr Ozone (1997) Washington, DC-MD-VA - (Moderate)
1-Hr Ozone (1979) Washington, DC-MD-VA - (Severe 15)
8-Hr Ozone (2008) Washington, DC-MD-VA - (Marginal)
Arlington Co
8-Hr Ozone (1997) Washington, DC-MD-VA - (Moderate)
1-Hr Ozone (1979) Washington, DC-MD-VA - (Severe 15)
8-Hr Ozone (2008) Washington, DC-MD-VA - (Marginal)
Charles City Co
8-Hr Ozone (1997) Richmond-Petersburg, VA - (Marginal)
1-Hr Ozone (1979) * Richmond, VA - (Moderate)
Chesapeake
8-Hr Ozone (1997) Norfolk-Virginia Beach-Newport News (Hampton Roads), VA - (Marginal)
1-Hr Ozone (1979) Norfolk-Virginia Beach-Newport News (Hampton Roads), VA - (Marginal)
Chesterfield Co
8-Hr Ozone (1997) Richmond-Petersburg, VA - (Marginal)
1-Hr Ozone (1979) Richmond, VA - (Moderate)
Colonial Heights
8-Hr Ozone (1997) Richmond-Petersburg, VA - (Marginal)
1-Hr Ozone (1979) Richmond, VA - (Moderate)
Fairfax
8-Hr Ozone (1997) Washington, DC-MD-VA - (Moderate)
1-Hr Ozone (1979) Washington, DC-MD-VA - (Severe 15)
8-Hr Ozone (2008) Washington, DC-MD-VA - (Marginal)
Fairfax Co
8-Hr Ozone (1997) Washington, DC-MD-VA - (Moderate)
1-Hr Ozone (1979) Washington, DC-MD-VA - (Severe 15)
8-Hr Ozone (2008) Washington, DC-MD-VA - (Marginal)
Falls Church
8-Hr Ozone (1997) Washington, DC-MD-VA - (Moderate)
1-Hr Ozone (1979) Washington, DC-MD-VA - (Severe 15)
8-Hr Ozone (2008) Washington, DC-MD-VA - (Marginal)
Fredericksburg
8-Hr Ozone (1997) Fredericksburg, VA - (Moderate)
Gloucester Co
8-Hr Ozone (1997) Norfolk-Virginia Beach-Newport News (Hampton Roads), VA - (Marginal)
Hampton
8-Hr Ozone (1997) Norfolk-Virginia Beach-Newport News (Hampton Roads), VA - (Marginal)
1-Hr Ozone (1979) Norfolk-Virginia Beach-Newport News (Hampton Roads), VA - (Marginal)
Hanover Co
8-Hr Ozone (1997) Richmond-Petersburg, VA - (Marginal)
1-Hr Ozone (1979) Richmond, VA - (Moderate)
Henrico Co
8-Hr Ozone (1997) Richmond-Petersburg, VA - (Marginal)
1-Hr Ozone (1979) Richmond, VA - (Moderate)
Hopewell
8-Hr Ozone (1997) Richmond-Petersburg, VA - (Marginal)
1-Hr Ozone (1979) Richmond, VA - (Moderate)
Isle Of Wight Co
8-Hr Ozone (1997) Norfolk-Virginia Beach-Newport News (Hampton Roads), VA - (Marginal)
James City Co
8-Hr Ozone (1997) Norfolk-Virginia Beach-Newport News (Hampton Roads), VA - (Marginal)
1-Hr Ozone (1979) Norfolk-Virginia Beach-Newport News (Hampton Roads), VA - (Marginal)
Loudoun Co
8-Hr Ozone (1997) Washington, DC-MD-VA - (Moderate)
1-Hr Ozone (1979) Washington, DC-MD-VA - (Severe 15)
8-Hr Ozone (2008) Washington, DC-MD-VA - (Marginal)
Madison Co
8-Hr Ozone (1997) * Madison and Page Cos (Shenandoah NP), VA - (Former Subpart 1)
Manassas
8-Hr Ozone (1997) Washington, DC-MD-VA - (Moderate)
1-Hr Ozone (1979) Washington, DC-MD-VA - (Severe 15)
8-Hr Ozone (2008) Washington, DC-MD-VA - (Marginal)
Manassas Park
8-Hr Ozone (1997) Washington, DC-MD-VA - (Moderate)
1-Hr Ozone (1979) Washington, DC-MD-VA - (Severe 15)
8-Hr Ozone (2008) Washington, DC-MD-VA - (Marginal)
Newport News
8-Hr Ozone (1997) Norfolk-Virginia Beach-Newport News (Hampton Roads), VA - (Marginal)
1-Hr Ozone (1979) Norfolk-Virginia Beach-Newport News (Hampton Roads), VA - (Marginal)
Norfolk
8-Hr Ozone (1997) Norfolk-Virginia Beach-Newport News (Hampton Roads), VA - (Marginal)
1-Hr Ozone (1979) Norfolk-Virginia Beach-Newport News (Hampton Roads), VA - (Marginal)
Page Co
8-Hr Ozone (1997) * Madison and Page Cos (Shenandoah NP), VA - (Former Subpart 1)
Petersburg
8-Hr Ozone (1997) Richmond-Petersburg, VA - (Marginal)
Poquoson
8-Hr Ozone (1997) Norfolk-Virginia Beach-Newport News (Hampton Roads), VA - (Marginal)
1-Hr Ozone (1979) Norfolk-Virginia Beach-Newport News (Hampton Roads), VA - (Marginal)
Portsmouth
8-Hr Ozone (1997) Norfolk-Virginia Beach-Newport News (Hampton Roads), VA - (Marginal)
1-Hr Ozone (1979) Norfolk-Virginia Beach-Newport News (Hampton Roads), VA - (Marginal)
Prince George Co
8-Hr Ozone (1997) Richmond-Petersburg, VA - (Marginal)
Prince William Co
8-Hr Ozone (1997) Washington, DC-MD-VA - (Moderate)
1-Hr Ozone (1979) Washington, DC-MD-VA - (Severe 15)
8-Hr Ozone (2008) Washington, DC-MD-VA - (Marginal)
Richmond
8-Hr Ozone (1997) Richmond-Petersburg, VA - (Marginal)
1-Hr Ozone (1979) Richmond, VA - (Moderate)
Smyth Co
1-Hr Ozone (1979) * Smyth Co, VA (White Top Mtn) - (Rural Transport (Marginal))
Spotsylvania Co
8-Hr Ozone (1997) Fredericksburg, VA - (Moderate)
Stafford Co
8-Hr Ozone (1997) Fredericksburg, VA - (Moderate)
1-Hr Ozone (1979) Washington, DC-MD-VA - (Severe 15)
Suffolk
8-Hr Ozone (1997) Norfolk-Virginia Beach-Newport News (Hampton Roads), VA - (Marginal)
1-Hr Ozone (1979) Norfolk-Virginia Beach-Newport News (Hampton Roads), VA - (Marginal)
Virginia Beach
8-Hr Ozone (1997) Norfolk-Virginia Beach-Newport News (Hampton Roads), VA - (Marginal)
1-Hr Ozone (1979) Norfolk-Virginia Beach-Newport News (Hampton Roads), VA - (Marginal)
Williamsburg
8-Hr Ozone (1997) Norfolk-Virginia Beach-Newport News (Hampton Roads), VA - (Marginal)
1-Hr Ozone (1979) Norfolk-Virginia Beach-Newport News (Hampton Roads), VA - (Marginal)
York Co
8-Hr Ozone (1997) Norfolk-Virginia Beach-Newport News (Hampton Roads), VA - (Marginal)
1-Hr Ozone (1979) Norfolk-Virginia Beach-Newport News (Hampton Roads), VA - (Marginal)
WASHINGTON
Clark Co
1-Hr Ozone (1979) * Portland-Vancouver AQMA, OR-WA - (Marginal)
King Co
1-Hr Ozone (1979) * Seattle-Tacoma, WA - (Marginal)
Pierce Co
1-Hr Ozone (1979) Seattle-Tacoma, WA - (Marginal)
Snohomish Co
1-Hr Ozone (1979) * Seattle-Tacoma, WA - (Marginal)
WEST VIRGINIA
Brooke Co
8-Hr Ozone (1997) Steubenville-Weirton, OH-WV - (Former Subpart 1)
Cabell Co
8-Hr Ozone (1997) Huntington-Ashland, WV-KY - (Former Subpart 1)
1-Hr Ozone (1979) Huntington-Ashland, WV-KY - (Moderate)
Greenbrier Co
1-Hr Ozone (1979) Greenbrier, WV - (Marginal)
Hancock Co
8-Hr Ozone (1997) Steubenville-Weirton, OH-WV - (Former Subpart 1)
Kanawha Co
8-Hr Ozone (1997) Charleston, WV - (Former Subpart 1)
1-Hr Ozone (1979) Charleston, WV - (Moderate)
Marshall Co
8-Hr Ozone (1997) Wheeling, WV-OH - (Former Subpart 1)
Ohio Co
8-Hr Ozone (1997) Wheeling, WV-OH - (Former Subpart 1)
Putnam Co
8-Hr Ozone (1997) Charleston, WV - (Former Subpart 1)
1-Hr Ozone (1979) Charleston, WV - (Moderate)
Wayne Co
8-Hr Ozone (1997) Huntington-Ashland, WV-KY - (Former Subpart 1)
1-Hr Ozone (1979) Huntington-Ashland, WV-KY - (Moderate)
Wood Co
8-Hr Ozone (1997) Parkersburg-Marietta, WV-OH - (Former Subpart 1)
1-Hr Ozone (1979) Parkersburg-Marietta, WV - (Moderate)
WISCONSIN
Door Co
8-Hr Ozone (1997) Door Co, WI - (Former Subpart 1)
1-Hr Ozone (1979) Door Co, WI - (Rural Transport (Marginal))
Kenosha Co
8-Hr Ozone (1997) Milwaukee-Racine, WI - (Moderate)
1-Hr Ozone (1979) Milwaukee-Racine, WI - (Severe 17)
8-Hr Ozone (2008) * Chicago-Naperville, IL-IN-WI - (Moderate)
Kewaunee Co
8-Hr Ozone (1997) Kewaunee Co, WI - (Former Subpart 1)
1-Hr Ozone (1979) Kewaunee Co, WI - (Moderate)
Manitowoc Co
8-Hr Ozone (1997) Manitowoc Co, WI - (Former Subpart 1)
1-Hr Ozone (1979) Manitowoc Co, WI - (Moderate)
Milwaukee Co
8-Hr Ozone (1997) Milwaukee-Racine, WI - (Moderate)
1-Hr Ozone (1979) Milwaukee-Racine, WI - (Severe 17)
Ozaukee Co
8-Hr Ozone (1997) Milwaukee-Racine, WI - (Moderate)
1-Hr Ozone (1979) Milwaukee-Racine, WI - (Severe 17)
Racine Co
8-Hr Ozone (1997) Milwaukee-Racine, WI - (Moderate)
1-Hr Ozone (1979) Milwaukee-Racine, WI - (Severe 17)
Sheboygan Co
8-Hr Ozone (1997) Sheboygan, WI - (Moderate)
1-Hr Ozone (1979) Sheboygan, WI - (Moderate)
8-Hr Ozone (2008) Sheboygan County, WI - (Moderate)
Walworth Co
1-Hr Ozone (1979) Walworth Co, WI - (Marginal)
Washington Co
8-Hr Ozone (1997) Milwaukee-Racine, WI - (Moderate)
1-Hr Ozone (1979) Milwaukee-Racine, WI - (Severe 17)
Waukesha Co
8-Hr Ozone (1997) Milwaukee-Racine, WI - (Moderate)
1-Hr Ozone (1979) Milwaukee-Racine, WI - (Severe 17)
WYOMING
Lincoln Co
8-Hr Ozone (2008) * Upper Green River Basin Area, WY - (Marginal)
Sublette Co
8-Hr Ozone (2008) Upper Green River Basin Area, WY - (Marginal)
Sweetwater Co
8-Hr Ozone (2008) * Upper Green River Basin Area, WY - (Marginal)


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