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
210043lightly pollutedexcellent41excellent
200056lightly pollutedexcellent81excellent
190066moderately pollutedexcellent61excellent
180058lightly pollutedgood141excellent
170062moderately pollutedexcellent121excellent
160062moderately pollutedexcellent31excellent
150056lightly pollutedexcellent31excellent
140056lightly pollutedexcellent21excellent
130048lightly pollutedexcellent21excellent
120038lightly pollutedexcellent21excellent
110035goodexcellent21excellent
100039lightly pollutedexcellent21excellent
090032goodexcellent21excellent
080030goodexcellent31excellent
070037lightly pollutedexcellent41excellent
060035goodexcellent21excellent
050026goodexcellent31excellent
040034goodexcellent31excellent
030038lightly pollutedexcellent41excellent
020038lightly pollutedexcellent51excellent
010040lightly pollutedexcellent11excellent
000040lightly pollutedexcellent11excellent
230041lightly pollutedexcellent11excellent
220040lightly pollutedexcellent11excellent