The Butte County Air Quality Management District is notifying the public that the high ambient air pollution levels recently attributed to the Ponderosa Fire and fires in north western California and Oregon have fallen to moderate levels in Butte County. Haze may still be visible in the Sacramento Valley while other Northern and Central California fires continue burning.

However, a large compost fire outside of Durham ignited late last week reportedly due to spontaneous combustion. This will continue to smolder for the next several days and cause local impacts depending on wind direction. The material smoldering is greenwaste and results in a pungent odor but is non-toxic in nature. The District will continue to provide daily forecasts based on the permanent air monitoring stations in Chico, Gridley and Paradise.