Doctors say stay inside, close windows and doors during 'Code Purple' alert

ALTOONA, Pa. (WTAJ) — Air quality in the region recently reached an index value of more than 200, which is more than four times the range considered healthy. This high Air Quality Index is caused by smoke from Canadian wildfires, prompting doctors to recommend various health precautions for residents. "Above 150 is unhealthy for everybody [...]