The Bay Area Air Quality Management District has issued Spare the Air Alerts for today and Thanksgiving Day.
The alerts prohibit the use of all wood-burning devices, including fireplaces, wood stoves, pellet stoves, manufactured fire logs, and fire pits -- both indoors and outdoors.
The district warns that wood smoke contains carcinogens and fine particulate pollution similar to cigarette or wildfire smoke. These particles can worsen asthma, trigger heart attacks, and increase long-term cancer risk, especially for children, older adults, and people with respiratory conditions.