Top 75 Most Polluted Cities According to the American Lung Association
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"State of the Air" ranks the most polluted cities in the United States based on various air quality measures. Here are some examples of cities that have historically been cited as having poor air quality in the ALA's reports:
Los Angeles-Long Beach, CA: Los Angeles and its surrounding areas have consistently ranked among the most polluted cities in the United States due to factors such as high population density, vehicular emissions, industrial activities, and geographical features that trap pollutants.
Bakersfield, CA: Located in California's San Joaquin Valley, Bakersfield often experiences poor air quality due to factors like agricultural activities, oil and gas production, and geographical conditions that contribute to the trapping of pollutants.
Fresno-Madera-Hanford, CA: This region in California's Central Valley has been identified as having significant air pollution issues, primarily due to agricultural operations, vehicle emissions, and geographical factors.
Visalia-Porterville-Hanford, CA: Also located in California's Central Valley, this region has high levels of particulate matter and ozone pollution, primarily associated with agricultural activities, vehicle emissions, and weather patterns.
Phoenix-Mesa-Scottsdale, AZ: Phoenix and its metropolitan area have experienced air pollution problems, particularly with high levels of particulate matter and ozone pollution. Factors include vehicle emissions, dust storms, and geographical conditions that contribute to the trapping of pollutants. - Bakersfield, California
- Fresno-Madera-Hanford, California
- Visalia, California
- Los Angeles-Long Beach, California
- San Jose-San Francisco-Oakland, California
- Salt Lake City, Utah
- Phoenix-Mesa-Scottsdale, Arizona
- Las Vegas-Henderson, Nevada
- Denver-Aurora, Colorado
- Sacramento-Roseville, California
- Seattle-Tacoma, Washington
- Fairbanks, Alaska
- San Diego-Chula Vista-Carlsbad, California
- Houston-The Woodlands, Texas
- Portland-Vancouver-Hillsboro, Oregon-Washington
- El Centro, California
- Cincinnati, Ohio-Kentucky-Indiana
- Cleveland-Akron-Canton, Ohio
- Pittsburgh, Pennsylvania
- Detroit-Warren-Ann Arbor, Michigan
- Indianapolis-Carmel-Muncie, Indiana
- Philadelphia-Reading-Camden, Pennsylvania-New Jersey-Delaware-Maryland
- New York-Newark, New York-New Jersey-Pennsylvania
- Chicago-Naperville, Illinois-Indiana-Wisconsin
- Washington-Baltimore-Arlington, DC-Maryland-Virginia-West Virginia-Pennsylvania
- Boston-Worcester-Providence, Massachusetts-Rhode Island-New Hampshire-Maine
- Atlanta-Athens-Clarke County-Sandy Springs, Georgia
- Chattanooga-Cleveland-Dalton, Tennessee-Georgia
- Dallas-Fort Worth, Texas
- Austin-Round Rock, Texas
- San Antonio-New Braunfels, Texas
- McAllen-Edinburg, Texas
- Charlotte-Concord, North Carolina-South Carolina
- Charleston-Huntington-Ashland, West Virginia-Kentucky-Ohio
- St. Louis-St. Charles-Farmington, Missouri-Illinois
- Milwaukee-Racine-Waukesha, Wisconsin
- Las Cruces, New Mexico
- Albuquerque, New Mexico
- Toledo, Ohio-Michigan
- Fort Wayne-Huntington-Auburn, Indiana
- Memphis, Tennessee-Mississippi-Arkansas
- Louisville-Jefferson County-Elizabethtown-Madison, Kentucky-Indiana
- Nashville-Davidson-Murfreesboro, Tennessee
- Birmingham-Hoover-Talladega, Alabama
- Huntsville, Alabama
- Mobile-Daphne-Fairhope, Alabama
- Boise City-Mountain Home-Ontario, Idaho-Oregon
- Oklahoma City-Shawnee, Oklahoma
- Tulsa-Muskogee-Bartlesville, Oklahoma
- Kansas City-Overland Park-Kansas City, Missouri-Kansas
- Sacramento-Roseville, California
- Eugene-Springfield, Oregon
- Spokane-Spokane Valley-Coeur d'Alene, Washington-Idaho
- Albuquerque, New Mexico
- Reno-Carson City-Fernley, Nevada
- Yuma, Arizona
- Denver-Aurora, Colorado
- Santa Fe-Espanola, New Mexico
- Colorado Springs, Colorado
- Eugene-Springfield, Oregon
- Yakima, Washington
- Medford-Grants Pass, Oregon
- Kennewick-Richland-Walla Walla, Washington-Oregon
- Redding-Red Bluff, California
- Anchorage, Alaska
- Billings, Montana
- Great Falls, Montana
- Missoula, Montana
- Helena, Montana
- Idaho Falls-Rexburg-Blackfoot, Idaho
- Logan, Utah-Idaho
- Flagstaff, Arizona
- Prescott, Arizona
- Lake Havasu City-Kingman-Bullhead City, Arizona-Nevada
- Farmington, New Mexico
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