The Air Quality Forecast is made by 1:15 p.m. Monday - Friday, and weekends as needed. Find out how to read the forecast and learn about air quality.
Ozone and particulate matter (PM) are the Bay Area’s two major pollutants. Learn about their health effects and find out how often they exceed federal and state health-based standards in the Bay Area.
Call 1-877-4NO-BURN for Winter Spare the Air Alert Status, wood burning information, or to make a wood smoke complaint.
These animated maps show how particulate pollution patterns in the Bay Area change over the course of a given day.
Air District systems will undergo planned maintenance from 8am Friday 4/28 through 11pm Sunday 4/30.
There may be disruptions in some services. We apologize for any inconvenience.