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
06008excellentexcellent11excellent
05007excellentexcellent11excellent
04008excellentexcellent11excellent
03005excellentexcellent11excellent
02006excellentexcellent11excellent
01006excellentexcellent11excellent
00004excellentexcellent11excellent
23005excellentexcellent11excellent
22004excellentexcellent11excellent
21003excellentexcellent11excellent
20003excellentexcellent11excellent
19003excellentexcellent11excellent
18001excellentexcellent11excellent
17002excellentexcellent11excellent
16002excellentexcellent11excellent
15004excellentexcellent11excellent
14003excellentexcellent11excellent
13005excellentexcellent11excellent
120031goodexcellent11excellent
11002excellentexcellent11excellent
10006excellentexcellent11excellent
090012excellentexcellent41excellent
080034goodexcellent81excellent
070033goodexcellent61excellent