Air Quality Advisory for Metro Vancouver, Fraser Valley

Fraser River

According to an NWS forecast discussion, haze higher in the atmosphere is from wildfires across south OR and northern California.

University of Washington atmospheric scientist Cliff Mass called attention to the high levels in a blog post today.

Unhealthy for Sensitive Groups: People with respiratory or heart disease, the elderly and children should limit prolonged exertion.

"We are expecting the smoke we're seeing right now in Western Washington to start to move out (Tuesday night) into (Wednesday)". Open both for fresh air when air quality improves.

Mass said the record is based on pollution measurements from the Puget Sound Clean Air Agency, which has been taking those readings for about 18 years. Check the Puget Sound Clean Air Agency's website for the most recent conditions.

Poor air quality has spread to other parts of the state, and even parts of northern Idaho reported poor air quality on Wednesday, according to the National Weather Service (NWS). Although we could have some clearing tonight, with so much smoke around it will likely linger through Thursday. Those include closing windows, running air conditioners on recirculation mode, avoiding driving and closing the windows when doing so and possibly wearing a N95 or N100 rated mask.

But outdoor adventurers, runners, bicyclists, and anyone used to frolicking outside might be getting antsy after a few days of bad air quality.

But air quality may diminish again on Sunday when the onshore flow will be cut off, according to Allard. Environment Canada is asking those with chronic lung conditions like asthma and COPD to stay indoors when conditions begin to change.

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