Millions Across Four States Told To Reduce Outside Activity

Newsweek -  Millions of Americans who suffer from respiratory problems, such as asthma, have been warned that poor air quality could make their symptoms worse this week. Meteorologists at the National Weather Service have issued a string of "air stagnation advisories" to warn residents to brace for increased levels of pollution due to the weather conditions.

The experts advised vulnerable people to take extra care and keep pets "indoors as much as possible," while urging residents to refrain from "outdoor burning" and to try to limit using "residential wood burning devices" if they can. People living in parts of Idaho, Oregon, Washington, and Montana are affected by the advisories, which were issued in the early hours of Monday with some due to remain in place until Friday morning. More