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1-Hour Ozone (1979) Nonattainment Area State/Area/County Report - NAAQS Revoked

Data is current as of September 30, 2020


CALIFORNIA (Region IX)
  Chico, CA (Section 185A - Nonattainment)
Butte County
 
  Imperial Co, CA (Section 185A - Nonattainment)
Imperial County
 
  Los Angeles-South Coast Air Basin, CA (Extreme - Nonattainment)
Los Angeles County (P)
Orange County
Riverside County (P)
San Bernardino County (P)
 
  Morongo Band of Mission Indians (Severe-17 - Nonattainment)
Riverside County (P)
 
  Sacramento Metro, CA (Severe-15 - Nonattainment)
El Dorado County (P)
(excluding Lake Tahoe Air Basin)
Placer County (P)
(excluding Lake Tahoe Air Basin)
Sacramento County
Solano County (P)
Northeastern portion
Sutter County (P)
Southern portion
Yolo County
 
  San Francisco Bay Area, CA (Other - Nonattainment)
Alameda County
Contra Costa County
Marin County
Napa County
San Francisco County
San Mateo County
Santa Clara County
Solano County (P)
Southwestern portion
Sonoma County (P)
Southern portion
 
  San Joaquin Valley, CA (Extreme - Nonattainment)
Fresno County
Kern County (P)
Kings County
Madera County
Merced County
San Joaquin County
Stanislaus County
Tulare County
 
  Southeast Desert Modified AQMA, CA (Severe-17 - Nonattainment)
Los Angeles County (P)
Riverside County (P)
San Bernardino County (P)
 
  Ventura Co, CA (Severe-15 - Nonattainment)
Ventura County
 
  Yuba City, CA (Section 185A - Nonattainment)
Sutter County (P)
Northern portion
Yuba County
 
CONNECTICUT (Region I)
  Greater Connecticut, CT (Serious - Nonattainment)
Fairfield County (P)
Shelton City
Hartford County
Litchfield County (P)
All cities and townships except: Bridgewater Town, New Milford Town
Middlesex County
New Haven County
New London County
Tolland County
Windham County
 
  New York-N. New Jersey-Long Island, NY-NJ-CT (Severe-17 - Nonattainment)
Fairfield County (P)
All cities and townships except Shelton City
Litchfield County (P)
Bridgewater Town, New Milford Town
 
DELAWARE (Region III)
  Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD (Severe-15 - Nonattainment)
Kent County
New Castle County
 
  Sussex Co, DE (Marginal - Nonattainment)
Sussex County
 
DISTRICT OF COLUMBIA (Region III)
  Washington, DC-MD-VA (Severe-15 - Nonattainment)
District of Columbia
 
ILLINOIS (Region V)
  Chicago-Gary-Lake County, IL-IN (Severe-17 - Nonattainment)
Cook County
DuPage County
Grundy County (P)
Aux Sable Township, Gooselake Township
Kane County
Kendall County (P)
Oswego Township
Lake County
McHenry County
Will County
 
INDIANA (Region V)
  Chicago-Gary-Lake County, IL-IN (Severe-17 - Nonattainment)
Lake County
Porter County
 
LOUISIANA (Region VI)
  Baton Rouge, LA (Severe-15 - Nonattainment)
Ascension Parish
East Baton Rouge Parish
Iberville Parish
Livingston Parish
West Baton Rouge Parish
 
MAINE (Region I)
  Knox & Lincoln Co.s, ME (Moderate - Nonattainment)
Knox County
Lincoln County
 
  Lewiston-Auburn, ME (Moderate - Nonattainment)
Androscoggin County
Kennebec County
 
  Portland, ME (Moderate - Nonattainment)
Cumberland County
Sagadahoc County
York County
 
MARYLAND (Region III)
  Baltimore, MD (Severe-15 - Nonattainment)
Anne Arundel County
Baltimore County
Baltimore city
Carroll County
Harford County
Howard County
 
  Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD (Severe-15 - Nonattainment)
Cecil County
 
  Washington, DC-MD-VA (Severe-15 - Nonattainment)
Calvert County
Charles County
Frederick County
Montgomery County
Prince George's County
 
MASSACHUSETTS (Region I)
  Boston-Lawrence-Worcester (E. Mass), MA-NH (Serious - Nonattainment)