News Alerts

21 Aug 2018 | 06:06 AM UTC

US: Air quality alerts in effect for Northwest until August 22-23

United States of America News Alert

National Weather Service issues air quality alerts for Washington, Oregon, Idaho panhandle, and western Montana on August 20 until August 22-23

TIMEFRAME expected from 8/21/2018, 12:00 AM until 8/24/2018, 11:59 PM (America/Los_Angeles). COUNTRY/REGION Washington, Oregon, Idaho, Montana

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Event

Air quality alerts were issued by the US National Weather Service (NWS) on Monday, August 20, for most of the northwestern US. Alert durations vary by locality, but most will remain in effect until Wednesday evening (local time), August 22, or Thursday morning, August 23. Affected areas include:

Context

Persistent wildfires in the western US have released smoke and particulates, reducing air quality as far as the Midwest. Weather conditions in the northwest have resulted in an inversion layer, trapping smoke near ground level. Air quality alerts indicate unhealthy levels of pollutants or particulate matter in the air that can cause health problems, from runny noses and watery eyes to bronchitis, and aggravate chronic heart and lung diseases.

Advice

Individuals in the affected areas, particularly children and those with respiratory illnesses, are advised to limit prolonged or strenuous outdoor activities and monitor respiratory symptoms, including watery eyes, chest pain, coughing, headache, and irregular heartbeats.

 

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