Wildfire smoke continues to blanket much of the Puget Sound region
Poor air quality can be unhealthy for everyone, and those with pre-existing conditions such as asthma, and heart or lung disease are especially at risk.
Dr. Cora Sack is a University of Washington Assistant Professor. She has expertise in lung disease, and the health effects of air pollution and wildfire smoke.
She says when air quality is moderate and worse, prolonged outdoor activity is not advisable.