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 (Mon, Oct 21)
55 AQI - Moderate
Tomorrow (Tue, Oct 22)
60 AQI - Moderate

Yesterday's High Extended AQI Outlook
Sun, Oct 20
56 AQI - Moderate
PM2.5
Wed, Oct 23
Moderate
Thu, Oct 24
Good
Fri, Oct 25
Moderate

Air Quality Forecast and Weather Discussion
Monday, light southerly winds will hinder dispersion throughout the day as a trough of low pressure passes well north of the region. In addition, thin smoke from small fires around the region will contribute to particle levels and ozone precursors. These conditions will lead to low-Moderate particle levels and high-Good ozone levels. Tuesday and Wednesday, light and variable winds will reduce pollutant dispersion in the Sacramento region each day. Furthermore, temperature inversions each morning and evening will confine pollutants near the surface, while mostly sunny skies and mild temperatures support ozone formation each afternoon. As a result, particle levels will remain low-Moderate on both days, and ozone levels will be high-Good on Tuesday and low-Moderate on Wednesday.