my air purifier has been showing elevated pm2.5 levels the last couple of days. that's even with windows closed. are the wildfires still burning? or is this something else? I checked the air quality map and there is a lot of orange and even some red in southern Ontario but I don't see anything about it in the news.

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it's happening again so I checked the map again.
aqicn.org/here/
lots of red (= unhealthy air quality) in . nothing in the news about it. I guess this is the new normal?

Here we go again. is rapidly deteriorating in Toronto and will get much worse soon. Look what is happening to the west of us already.

Stay safe, folks. Get indoors, close windows and run air purifiers if you have them.

@herid do you have a link to that nice hour by hour breakdown?

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