“By 2 p.m. Tuesday, Brookfield had the worst air in the nation with [an Air Quality Index] reading of 329, considered hazardous for everyone, or the worst category in the ranking.”
“By 2 p.m. Tuesday, Brookfield had the worst air in the nation with [an Air Quality Index] reading of 329, considered hazardous for everyone, or the worst category in the ranking.”
Also, found this current snapshot of worst AQI scores in the US.