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 4)
33 AQI - Good
Tomorrow (Wed, Feb 5)
56 AQI - Moderate

Yesterday's High Extended AQI Outlook
Mon, Feb 3
33 AQI - Good
Ozone
Thu, Feb 6
Good
Fri, Feb 7
Good
Sat, Feb 8
Good

Air Quality Forecast and Weather Discussion
Tuesday, widespread rainfall and gusty southeasterly winds will keep pollutants well dispersed in the Sacramento region. Thus, particle levels will be Good. Wednesday, winds will gradually weaken throughout the day, becoming calm to light easterly in the evening as surface high pressure moves toward northern California. Furthermore, a temperature inversion will develop in the evening, reducing atmospheric mixing. These conditions will allow pollutants to build up in the Sacramento region, yielding low-Moderate particle levels. Thursday, calm to light southeasterly morning winds will allow pollutants to accumulate, while a morning inversion traps pollutants at the surface. However, as an upper-level low pressure system approaches the region, vertical mixing will increase through the day, while rain showers will aid dispersion. Therefore, particle levels will be high-Good.