[BunsanSpace]

Canada is updating their model to be the worst of PM2.5 and their traditional models of common pollutants.

Part of the issue is the existing model does an average over 3 hours, where PM2.5 can change rapidly (fire, traffic surge, &c). So they have a second metric that is averaged over an hour.

[hadlock]

Putting a frozen pizza in the oven can spike most apartments to 300 in under 10-12 min, especially if you leave it in too long at 450F