Wildfire Smoke Causing Poor Air Quality in U.S. Pacific Northwest

Air pollution advisories, air quality alerts issued for Washington, Oregon

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MONDAY, Aug. 20, 2018 (HealthDay News) -- Smoke from wildfires will cause poor air quality in parts of the U.S. Pacific Northwest this week, officials warn.

Air quality alerts are in effect for much of Washington state through Wednesday, according to the National Weather Service, the Associated Press reported.

In the Puget Sound region, smoke from wildfires in British Columbia, Canada, and the Cascade Mountains could reach unhealthy levels by Monday, according to the Puget Sound Clean Air Agency. Smoke from wildfires in British Columbia will cause unhealthy air levels in eastern Washington and north Idaho through Tuesday, the weather service warned.

A pollution advisory has been issued for southwest Washington, Portland, and much of the Willamette Valley. Conditions were expected to worsen Sunday night and last through Wednesday, the AP reported. An air pollution advisory for southern Oregon is in effect until further notice.

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