PM 2.5
Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
100077moderately pollutedgood211excellent
090072moderately pollutedgood201excellent
080079moderately pollutedgood191excellent
070076moderately pollutedgood181excellent
060074moderately pollutedgood171excellent
050078moderately pollutedgood171excellent
040067moderately pollutedgood161excellent
030075moderately pollutedgood181excellent
020083moderately pollutedgood211excellent
010088heavily pollutedgood201excellent
000051lightly pollutedexcellent111excellent
230045lightly pollutedexcellent101excellent
220043lightly pollutedexcellent101excellent
210050lightly pollutedexcellent81excellent
200049lightly pollutedexcellent81excellent
190041lightly pollutedexcellent71excellent
180041lightly pollutedexcellent61excellent
170027goodexcellent41excellent
160016goodexcellent21excellent
150018goodexcellent21excellent
140029goodexcellent51excellent
130029goodexcellent51excellent
120027goodexcellent41excellent
110034goodexcellent71excellent