NCW — Air quality in the region has significantly improved from the past few days, though it still isn't back to "good."
Here are the readings as of 11 a.m. Friday, according to the state Department of Ecology:
Wildfire smoke can cause burning eyes, sore throat, headache, coughing and shortness of breath.
Ecology advises everyone to limit time outdoors, set their air-conditioning to recirculation and keep pets inside if possible. Certain groups are especially vulnerable, including those with heart or lung disease, asthma or diabetes; people who have had a stroke; children; people over 65; and pregnant women.