America's 25 Most Ozone-Polluted Metropolitan Areas, 2014

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: Visalia-Porterville-Hanford, CA
#3: Bakersfield, CA
#4: Fresno-Madera, CA
#5: Sacramento-Roseville, CA
#6: Houston-The Woodlands, TX
#7: Modesto-Merced, CA
#8: Dallas-Fort Worth, TX
#8: Washington-Baltimore-Arlington, DC-MD-VA-WV
#10: Las Vegas-Henderson, NV-AZ
#11: Phoenix-Mesa-Scottsdale, AZ
#12: New York-Newark, NY-NJ-CT-PA
#13: St. Louis-St. Charles-Farmington, MO-IL
#14: Tulsa-Muskogee-Bartlesville, OK
#14: Cincinnati-Wilmington-Maysville, OH-KY-IN
#16: Philadelphia-Reading-Camden, PA-NJ-DE-MD
#17: El Centro, CA
#18: Louisville-Jefferson County-Madison, KY-IN
#19: Oklahoma City-Shawnee, OK
#20: Chicago-Naperville, IL-IN-WI
#21: Pittsburgh-New Castle-Weirton, PA-OH-WV
#22: Fort Collins, CO
#23: Birmingham-Hoover-Talladega, AL
#24: Sheboygan, WI
#25: Cleveland-Akron-Canton, OH
Source: State of the Air: 2014, American Lung Association.

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

America's 25 Most Ozone-Polluted Metropolitan Areas, 2014


Vote Now for the Children's & Teen Choice Book Awards
Voting is open now through May 3 for the Children's and Teen Choice Book Awards — the only national book awards program where the winning author, illustrator, and books of the year are selected by young readers. Encourage your child to vote for his favorites today!

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!

10 Best Outdoor Toys of 2015
Looking for an amazing toy that will keep your child playing outside until the sun goes down? See our picks for 10 hot new outdoor toys for all ages.

Registered for Kindergarten — Now What?
Wondering what to do now that you've signed your child up for kindergarten? Try our award-winning Kindergarten Readiness app! This easy-to-use checklist comes with games and activities to help your child build essential skills for kindergarten. Download the Kindergarten Readiness app today!

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 Facebook icon Follow Us on Pinterest

editor’s picks