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 (Fri, May 1)
58 AQI - Moderate
Tomorrow (Sat, May 2)
50 AQI - Good

Yesterday's High Extended AQI Outlook
Fri, May 1
54 AQI - Moderate
Ozone
Sun, May 3
Good
Mon, May 4
Good
Tue, May 5
Good

Air Quality Forecast and Weather Discussion
Friday, as a ridge of high pressure aloft moves over the Sacramento region, mixing will decrease. Furthermore, periods of light onshore winds will limit pollutant dispersion, while partly sunny skies and warm temperatures will aid ozone development. Therefore ozone and particle levels will be low-Moderate. Saturday, as a cold front moves toward northern California, mixing will improve. Additionally, cooler temperatures will reduce ozone production, while periods of moderate onshore winds will aid dispersion. These conditions will yield high-Good ozone levels, while particle levels will be Good to high-Good. Sunday, an upper-level trough of low pressure will deepen offshore, enhancing mixing and producing moderate southwesterly winds through the Sacramento Valley. In addition, cooler temperatures will limit ozone development, leading to Good ozone and particle levels.