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
22005excellentexcellent11excellent
21004excellentexcellent11excellent
20003excellentexcellent11excellent
19002excellentexcellent11excellent
18002excellentexcellent11excellent
17005excellentexcellent11excellent
16004excellentexcellent11excellent
150068moderately pollutedexcellent11excellent
14004excellentexcellent11excellent
13005excellentexcellent11excellent
120015goodexcellent11excellent
11003excellentexcellent11excellent
10002excellentexcellent11excellent
09004excellentexcellent11excellent
08008excellentexcellent11excellent
07006excellentexcellent11excellent
06004excellentexcellent11excellent
05004excellentexcellent11excellent
04004excellentexcellent11excellent
03004excellentexcellent11excellent
02003excellentexcellent11excellent
01004excellentexcellent11excellent
00004excellentexcellent11excellent
23005excellentexcellent11excellent