South Coast AQMD
is the regulatory agency responsible for improving air quality
for large areas of Los Angeles, Orange County, Riverside and San Bernardino
counties, including the Coachella Valley.
During late fall and early winter, the South Coast Air Quality Management District (South Coast AQMD) asks residents to participate in its "Check Before You Burn"
program by not burning wood in fireplaces when unhealthful air quality is forecast. Under the program -- intended to help improve wintertime air quality --South Coast AQMD may issue mandatory no-burn alerts from November 1 through the end of February
No-burn alerts are issued for 24-hour periods for residential wood-burning fireplaces, backyard fire pits and wood stoves when emissions and stagnant weather conditions raise fine particulate pollution to unhealthy levels. Alerts are typically issued for the entire South Coast Air Basin, which encompasses all of Orange County and the non-desert portions of Los Angeles, Riverside and San Bernardino counties.