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
17003excellentexcellent11excellent
16003excellentexcellent11excellent
15004excellentexcellent11excellent
14003excellentexcellent11excellent
13003excellentexcellent11excellent
12004excellentexcellent11excellent
11006excellentexcellent11excellent
100054lightly pollutedexcellent11excellent
090069moderately pollutedexcellent11excellent
08004excellentexcellent11excellent
07004excellentexcellent11excellent
06005excellentexcellent11excellent
05005excellentexcellent11excellent
04005excellentexcellent11excellent
03005excellentexcellent11excellent
02005excellentexcellent11excellent
01007excellentexcellent11excellent
00009excellentexcellent11excellent
23005excellentexcellent11excellent
22004excellentexcellent11excellent
21004excellentexcellent11excellent
20003excellentexcellent11excellent
19004excellentexcellent11excellent
18004excellentexcellent11excellent