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
22004excellentexcellent11excellent
21002excellentexcellent11excellent
20002excellentexcellent11excellent
19002excellentexcellent11excellent
18004excellentexcellent11excellent
17003excellentexcellent11excellent
16003excellentexcellent11excellent
15003excellentexcellent11excellent
14004excellentexcellent11excellent
13005excellentexcellent11excellent
12006excellentexcellent11excellent
11006excellentexcellent11excellent
10006excellentexcellent11excellent
09009excellentexcellent21excellent
08007excellentexcellent21excellent
07005excellentexcellent11excellent
06005excellentexcellent21excellent
05005excellentexcellent21excellent
04005excellentexcellent21excellent
03005excellentexcellent21excellent
02005excellentexcellent11excellent
01005excellentexcellent11excellent
00005excellentexcellent11excellent
23005excellentexcellent11excellent