12:50 p.m. update: Klamath Falls residents can breathe easier. It turns out their air is not hazardous. The state Department of Environmental Quality said today the city's air-quality monitor malfunctioned and that earlier hazardous readings were false. The monitor will be back online Tuesday. Though the city's air is not hazardous, it has been affected by a fire burning southeast of Roseburg in the Umpqua National Forest.

- The Associated Press


8:30 a.m. update:
KLAMATH FALLS — The air quality in Klamath Falls has reached a hazardous level.

The hazardous level is reached at an air quality index of 300. According to information on the Department of Environmental Quality Web site, the rate in Klamath Falls this morning is 700.

Some smoke remained in the air over much of Southern Oregon this morning, but no areas recorded levels as bad as in Klamath Fall. Air quality fell to to a level considered unhealthy for sensitive people in Shady Cove and to a "moderate" level, one step below "good," in Medford and the Applegate.

The bad air has been caused by a fire burning southeast of Roseburg in the Umpqua National Forest and south blowing winds.

The Boze and Rainbow Creek fires have burned 12,726 acres and are about 15 percent contained.

— Wire and staff reports