America's 25 Most Ozone-Polluted Metropolitan Areas, 2011

Each year the American Lung Association issues their "State of the Air" report. They track year-round and short-term particle pollution as well as the ozone pollution listed here. Though ozone pollution isn't the obvious, sooty kind of pollution, it can still be harmful to your health. Studies have shown that ozone pollution can worsen conditions such as bronchitis, asthma, emphysema, and cardiovascular disease.

Rank: City
#1: Los Angeles-Long Beach-Riverside, CA
#2: Bakersfield-Delano, CA
#3: Visalia-Porterville, CA
#4: Fresno-Madera, CA
#5: Sacramento--Arden-Arcade--Yuba City, CA
#6: Hanford-Corcoran, CA
#7: San Diego-Carlsbad-San Marcos, CA
#8: Houston-Baytown-Huntsville, TX
#9: Merced, CA
#10: Charlotte-Gastonia-Salisbury, NC-SC
#11: San Luis Obispo-Paso Robles, CA
#12: Dallas-Fort Worth, TX
#13: El Centro, CA
#14: Modesto, CA
#14: Washington-Baltimore-Northern Virginia, DC-MD-VA-WV
#16: Cincinnati-Middletown-Wilmington, OH-KY-IN
#17: New York-Newark-Bridgeport, NY-NJ-CT-PA
#18: Knoxville-Sevierville-La Follette, TN
#19: Phoenix-Mesa-Glendale, AZ
#20: Philadelphia-Camden-Vineland, PA-NJ-DE-MD
#21: Birmingham-Hoover-Cullman, AL
#22: Chico, CA
#23: Atlanta-Sandy Springs-Gainesville, GA-AL
#24: Pittsburgh-New Castle, PA
#25: Las Vegas-Paradise-Pahrump, NV
Source: State of the Air: 2011, American Lung Association.

Information PleaseĀ® Database, Ā© 2012 Pearson Education, Inc. All rights reserved.

America's 25 Most Ozone-Polluted Metropolitan Areas, 2008 Environment Ten Types of Debris Littering the Oceans
America's 25 Most Ozone-Polluted Metropolitan Areas, 2011

what’s hot

  1. Top 10 Classic Board Games for Kids
  2. 11 Awesome Family Activities for Thanksgiving Day
  3. Top 10 Birthday Gifts for Teenagers (Ages 14-18)
  4. VIEW ALL

stay connected

Sign up for our free email newsletters and receive the latest advice and information on all things parenting.

Enter your email address to sign up or manage your account.

Facebook icon Twitter icon Follow Us on Pinterest

editor’s picks

highlights

3 Fun Thanksgiving Games for Kids
Looking for some great Thanksgiving games to play with your kids? Print our free Pin the Feathers on the Turkey game, Pin the Hat on the Pilgrim game, and Thanksgiving Parade Bingo game for loads of laughs this Turkey Day!

Kindergarten Readiness App Wins Gold
Our Kindergarten Readiness app won the Gold Award of Excellence in the educational category at the 2014 Communicator Awards. This valuable checklist comes with games and activities to help your child practice the essential skills she needs for kindergarten. Download the Kindergarten Readiness app today!

Top Family Movies in Theaters for the Holidays
Taking the kids to the movies is a special family treat for the holidays! Don't miss 2014's best family films in theaters from Thanksgiving through Christmas.

Find Today's Newest & Best Children's Books!
Looking for newly released books for your child? Try our new Book Finder tool to search for new books by age, type, and theme, and create reading lists for kids!