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
16004excellentexcellent11excellent
15006excellentexcellent11excellent
14004excellentexcellent21excellent
13007excellentexcellent11excellent
120015goodexcellent21excellent
110011excellentexcellent31excellent
100014goodexcellent41excellent
090018goodexcellent51excellent
080042lightly pollutedexcellent81excellent
070050lightly pollutedexcellent81excellent
060056lightly pollutedexcellent81excellent
050055lightly pollutedexcellent81excellent
040047lightly pollutedexcellent81excellent
030045lightly pollutedexcellent71excellent
020038lightly pollutedexcellent61excellent
010040lightly pollutedexcellent51excellent
000034goodexcellent41excellent
230022goodexcellent51excellent
220021goodexcellent41excellent
210015goodexcellent31excellent
200010excellentexcellent21excellent
19008excellentexcellent11excellent
18008excellentexcellent21excellent
17006excellentexcellent11excellent