TomWilsonYEG@CTHW@mstdn.ca
@mariellequinton@ottawa.place
To arrive at the Canadian AQI divide pm 2.5 by 10 and round up …
So a pm 2.5 in the 50's would equate to an AQI of 6
So far it's worked well for my detector & Purple Air.
Purple air has a woodsmoke conversion as well but I'm not sure what it does.
Marielle Quinton@mariellequinton@ottawa.place
@CTHW@mstdn.ca No? That doesn't work at all here. For it to be 6 or would have to be around 150. 50 would absolutely be more like 2 or 3. There's provincial variation in the calculations. The BC protocol most provinces switched to last year has a step where they switch over to just PM 2.5 when it's higher than the classic AQHI. Here's some info about it https://www.cbc.ca/news/canada/british-columbia/smoke-hazards-eccc-1.7209312 Anyway, it's a 3 here right now, but purple air reports numbers in the 50s.