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, Dec 30)
82 AQI - Moderate
Tomorrow (Wed, Dec 31)
82 AQI - Moderate

Yesterday's High Extended AQI Outlook
Mon, Dec 29
54 AQI - Moderate
Ozone
Thu, Jan 1
Moderate
Fri, Jan 2
Moderate
Sat, Jan 3
Good

Air Quality Forecast and Weather Discussion
Tuesday, a temperature inversion will persist through the morning, confining pollutants to the lower levels of the atmosphere. In addition, calm to light and variable winds will allow pollutants to build up during the day, and morning fog will enhance particle production. Therefore, despite light northerly winds aiding dispersion during the evening, particle levels will be mid-Moderate. New Year's Eve, low-level mixing will continue to be limited as a ridge of high pressure aloft keeps the morning temperature inversion in place. Furthermore, morning fog will aid particle formation while light winds hinder dispersion. As a result, particle levels will remain mid-Moderate. New Year's Day, atmospheric mixing will improve over the Sacramento region as an upper-level trough of low pressure moves onshore over central California. In addition, increasing southerly winds will aid dispersion during the afternoon and evening. These conditions will allow particle levels to improve to low-Moderate.