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 (Tue, Feb 3)
71 AQI - Moderate
Tomorrow (Wed, Feb 4)
82 AQI - Moderate

Yesterday's High Extended AQI Outlook
Mon, Feb 2
54 AQI - Moderate
Ozone
Thu, Feb 5
Moderate
Fri, Feb 6
Moderate
Sat, Feb 7
Moderate

Air Quality Forecast and Weather Discussion
Monday, a strong temperature inversion will confine pollutants near the surface during the morning, while a building ridge of high pressure aloft hinders atmospheric mixing. In addition, calm to light southerly winds will limit dispersion and gradually transport regional pollutants into the Sacramento Valley, leading to mid-Moderate particle levels. Tuesday, a morning inversion will trap pollutants near the ground, while patchy morning fog will enhance particle formation. Furthermore, calm to light northerly winds early in the day will allow pollutants to accumulate. Therefore, despite slightly stronger north-northwesterly afternoon winds aiding dispersion, particle levels will continue to be mid-Moderate. Wednesday, light and variable winds will limit dispersion throughout the day as a surface high-pressure system develops over the Great Basin. Temperatures in the upper-60s will aid low-level mixing during the afternoon. However, inversions during the morning and evening hours will keep pollutants near the surface, leading to another day of mid-Moderate particle levels.