Do You Know Current Air Pollution Levels?
Check air quality conditions before you go outside to help protect your health. Exposure to high air pollution levels can cause immediate and severe health issues including respiratory illness, heart and lung stress, and damaged respiratory cells. Some individuals are more vulnerable to the health impacts of air pollution, including children, pregnant women, the elderly, and individuals with heart or lung conditions, such as asthma.

Mark your calendar for May 1, when the Sacramento region's Spare The Air Program will begin. From May 1 to October 31 each year, when the AQI is forecast to reach 126 or higher for ground-level ozone a Spare The Air alert is issued. On Spare The Air days, residents are asked to reduce their driving.

Sacramento Region Ozone Air Quality Forecast updated by noon
Today (Wed, May 13)
58 AQI - Moderate
Tomorrow (Thu, May 14)
67 AQI - Moderate

Yesterday's High Extended AQI Outlook
Wed, May 13
54 AQI - Moderate
Ozone
Fri, May 15
Moderate
Sat, May 16
Good
Sun, May 17
Good

Air Quality Forecast and Weather Discussion
Wednesday, slightly cooler temperatures will limit ozone development as a trough of low pressure aloft promotes mixing over northern California. However, light onshore winds will reduce pollutant dispersion in the Sacramento region. As a result, ozone levels will be high-Good to low-Moderate. Thursday, sunny skies and temperatures warming into the low-90s will enhance ozone formation throughout the Sacramento region. In addition, calm to light west-northwesterly winds will limit mixing and dispersion, leading to pollutant build-up. These conditions will result in mid-Moderate ozone levels. Friday, as surface high pressure builds over the Pacific Northwest, northwesterly winds will strengthen through the Sacramento Valley, dispersing pollutants. However, sunny skies and temperatures in the low-90s will continue to support ozone production, leading to low-Moderate ozone levels.