A Stage 1 burn ban is in effect for Pierce and Snohomish counties as of 5 p.m. Dec. 29 until further notice, according to the Puget Sound Clean Air Agency.
Cold and stagnant weather expected to last through the week may cause a build-up of air pollution, which could reach unhealthy levels for some groups.
Places where wood burning is common could be particularly affected.
Air pollution is particularly harmful to children, adults over age 65, diabetics, and people with heart and lung problems, according to the agency.
People sensitive to the pollution should limit time outside, particularly while exercising, the …