The AQI converts the measured pollutant concentration in a community's air to a number on a scale of 0 to 500. Hazardous Click here for more information on Criteria Pollutants. Air pollution levels are low and dispersion is good. Solid fuel burning devices can be used. When you burn, make sure it's clean, dry wood.
Excessive smoke is illegal at all times.
Yellow restrictions may stay in effect for days if air dispersion or air quality are expected to remain poor. When use of solid fuel burning devices is restricted, a three-hour burn down period is permitted. Open the damper to produce a brisk burn and do not add any more wood. Use of all solid fuel burning devices is prohibited in the Smoke Control Zone, and, depending on the seriousness, throughout Spokane County and possible other areas of eastern Washington. Red indicates a serious air pollution condition, and some individuals may experience health problems.