State of the Air 2014


The State of the Air 2014 report grades cities and counties affected by the most widespread types of air pollution (ozone "smog" and particle pollution) recorded over a three-year period, and details trends for metropolitan areas over the past decade. The report ranks also both the cleanest and most polluted areas in the country.

While the State of the Air 2014 report shows progress for our state, it serves also to remind us that Californians continue to struggle with breathing air, as almost 80 percent of Californians live in areas plagued with unhealthy air during certain parts of the year.

State of the Air 2014 Press Release
English     |     Spanish

State of the Air 2014 Report
Download the State of the Air 2014
View the Methodology

Check out these key findings:
California Grade Summary
Most Polluted Metro Areas in California
Californians at Risk Due to Air Pollution

Fact Sheets
State of California
Greater Bay Area
Greater Sacramento Area
San Joaquin Valley
Southern California
Greater San Diego Area

Ozone Pollution Fact Sheets
Particle Pollution Fact Sheets

Trend Charts
Daily Particle Pollution Trend Charts
Annual Particle Pollution Trend Charts
Ozone Trend Charts

Maps to provide a visual representation of the State of the Air 2013 and State of the Air 2014 report grades for annual particle pollution, daily particle pollution, and ozone pollution.

ala-sota-2014-buttonView the nationwide American Lung Association State of the Air 2014 report at to learn more about ozone and particle pollution, and to see how your community ranks.

For media inquiries, contact: 
Maria Bernabe, 310-735-9184,




We count on volunteers to help us with our mission. Sign up now to join us in the Fight For Air. » More

Ways to Donate


Our work is possible through your generous donations. Help us Fight For Air by giving back to your community. » More