Wood burning activity limited in region

Stagnant air has prompted clean air agencies to issue health warnings and urge limited use of woodstoves and fireplaces.

The Spokane Regional Clean Air Agency issued a “yellow” wood burning status report Thursday.

Only certified solid fuel burning devices and pellet stoves are allowed to be used in the area, and older stoves, inserts and fireplaces may not be used until further notice.

The air quality is “moderate,” and unusually sensitive people should consider reducing prolonged or heavy exertion, the agency said. The conditions were expected to continue today.

The Washington Department of Ecology has issued an air stagnation advisory for the valleys on the eastern slopes of the Cascades. The state is urging people to limit use of woodstoves and fireplaces through Sunday.

Smoke from burning wood gets trapped in the air during stagnant conditions, especially in low-lying areas. Fine particles in smoke can be inhaled deeply into the lungs, posing health risks for people with asthma, lung or heart problems.