Fairbanks Daily News-Miner - Cold weather brings air quality advisory to Fairbanks area

FAIRBANKS - An air quality advisory is in effect through Friday afternoon. Residents in the Fairbanks North Star Borough are encouraged to avoid or limit prolonged exertion due to a harmful pollutant known as PM 2.5.
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Temperatures in the Fairbanks area ranged from 30 to 40 below zero in low areas on Wednesday. In the hills, temperatures hovered around 10 below. Lows tonight could reach minus 50.
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The pollution has been concentrated by a temperature inversion, when warmer air traps cold air below it. Particulates become trapped in the cold layer near the ground.

Illinois | Cold weather caused death of local man

Preliminary results of Tuesday’s autopsy indicate the death Monday of 47-year-old Bruce Quillen of Morris was consistent with exposure to the cold weather.