Know Your AQI – Air Quality Index

Spare the Air season is underway.  As summer temperatures begin to rise, so do levels of ozone.  High levels of ozone may be unhealthy.

The Air Quality Index, or AQI, measures the level of outdoor air pollution for ozone or particulate matter (PM).  The higher the AQI value, the greater level of air pollution. 

Sign up to get air quality alerts and make a plan to reduce driving on high smog days. Learn more at