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Some local air districts enforce mandatory burning curtailment programs during winter months that may prohibit residential burning on days when air quality is considered poor. A typical winter burn program runs from November to February. Most days it’s ok to burn, but “no burn“ days can be issued at the discretion of the local districts if the concentration of particulate matter (PM2.5) is outside of their prescribed threshold. Normally an agency will call a no burn day when a layer of cold air gets trapped by another layer of warmer air; this creates an inversion that acts like a cover that can trap pollutants within the cold, stagnant air close to the ground. Fine particle emissions can come from sources like automobiles, fireplaces, and industrial manufacturing.

Each local air district enacts different air quality programs, usually based on air quality guidelines from the EPA, so be sure to check with the correct agency that corresponds with your location by entering your zip code above or clicking on your district above.

Many fireplace fuels, like manufactured fire logs, produce significantly less emissions than firewood.
Click here for a guide on cleaner-burning fuels and tips to help reduce emissions when you burn.