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 PM2.5 Air Quality Forecast updated by noon
Today (Thu, Apr 3)
50 AQI - Good
Tomorrow (Fri, Apr 4)
44 AQI - Good

Yesterday's High Extended AQI Outlook
Wed, Apr 2
41 AQI - Good
Ozone
Sat, Apr 5
Moderate
Sun, Apr 6
Moderate
Mon, Apr 7
Good

Air Quality Forecast and Weather Discussion
Thursday, a morning temperature inversion will trap pollutants near the surface, while calm to light west-northwesterly winds allow pollutants to accumulate. However, low pollutant carryover from the previous day will keep particle levels high-Good. Friday, light to moderate northwesterly winds will aid dispersion as a surface high pressure system passes to the north. In addition, warming afternoon temperatures will aid low-level mixing. As a result, particle levels will be Good. Saturday, an upper-level ridge of high pressure will strengthen along the West Coast, reducing atmospheric mixing. Furthermore, light and variable winds throughout the day will reduce dispersion, allowing pollutants to build up in the Sacramento region. However, warm afternoon temperatures will increase low-level mixing again. In addition, pollutant carryover from previous days will be low. As a result, particle levels will be low-Moderate.