clouds & sky

Measuring Air Quality

Accurately measuring air quality is the foundation of California’s efforts to reduce air pollution. For more than 50 years California has maintained one of the most extensive air monitoring networks in the world, collecting data on a wide range of pollutants. The information we get from this network makes it possible to track our progress in cleaning the air, and identify the most effective actions needed to meet health-based air standards.

 

Air Quality in your Community

Find real time and historical air quality data by air district.