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 Quality Advisory Extended: Smoke from the Mendocino Complex Fire and other wildfires is likely to impact the Bay Area through Thursday. See our Wildfire Safety Tips web page. See our Wildfire Safety Tips web page.