The Spare The Air program spans from Vacaville’s roots in agribusiness to the foothills of Placer and El Dorado Counties and all diverse communities in between. Whether exploring the outdoors, commuting to work, or participating in a sporting activity outside, it’s our shared responsibility to protect the air quality where we call home – the greater Sacramento region!

Whether exploring the outdoors, commuting to work, or participating in a sporting activity outside, it’s our shared responsibility to protect the air quality!
This public health education effort is a partnership between five regional air districts:
The Spare The Air program is dedicated to measurably improving the region’s air quality and helping residents protect themselves from air pollution by providing air quality forecasts, real-time readings, air pollution alerts, and educational materials for schools, businesses, residents, and community organizations.
The Spare The Air campaign runs from May through October each year, which is known as the summer smog season. Ground-level ozone, or smog, is the primary pollutant during this time of year and is monitored throughout the Spare The Air season. During wildfire smoke episodes, Spare The Air may provide PM2.5 forecasts rather than ground-level ozone, as needed.
Main contributors to unfavorable ground-level ozone conditions include a mix of high heat, relatively stagnant air, and greenhouse gas emissions trapped inside of the Sacramento Valley “bowl,” which presents a serious air pollution problem during the summer months. With air pollution data varying hourly, it is important to check air quality conditions before participating in any outdoor activity.
Daily local and regional air quality forecasts are provided via AirNow.gov.