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]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
200018goodexcellent31excellent
190017goodexcellent21excellent
180014goodexcellent31excellent
170018goodexcellent31excellent
160017goodexcellent31excellent
150017goodexcellent31excellent
140017goodexcellent31excellent
130016goodexcellent31excellent
120020goodexcellent41excellent
110024goodexcellent61excellent
100040lightly pollutedexcellent81excellent
090046lightly pollutedexcellent81excellent
080045lightly pollutedexcellent81excellent
070045lightly pollutedexcellent81excellent
060044lightly pollutedexcellent71excellent
050036goodexcellent61excellent
040031goodexcellent51excellent
030030goodexcellent51excellent
020036goodexcellent61excellent
010045lightly pollutedexcellent81excellent
000046lightly pollutedexcellent61excellent
230038lightly pollutedexcellent71excellent
220033goodexcellent61excellent
210029goodexcellent51excellent