Another Winter Spare the Air Day has been called for Tuesday, prohibiting all wood burning in the Bay Area for another 24-hour period, according to the Bay Area Air Quality Management District.
The air alert is in effect Tuesday for the seventh day this season, air officials said.
A Spare the Air alert was also called for Wednesday, Dec. 11.
During a prolonged cold snap with temperatures dropping into the 30s and below, air pollution is expected to reach unhealthy levels again on Tuesday.
During a Spare the Air Day during the winter, it is prohibited to use fireplaces, woodstoves, pellet stoves, outdoor fire pits or any other wood-burning device. Wood burning is only legal in homes where woodstoves or fireplaces are the only heat source.
Violators could face fines of up to $500.
To file a complaint or to find out more about the alert, residents can visit the district's website at www.sparetheair.org or call (877) 4-NO-BURN.
The Winter Spare the Air season runs until Feb. 28.