Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
00006excellentexcellent11excellent
23007excellentexcellent11excellent
22007excellentexcellent11excellent
21004excellentexcellent11excellent
20004excellentexcellent11excellent
19002excellentexcellent11excellent
18001excellentexcellent11excellent
17002excellentexcellent11excellent
16003excellentexcellent11excellent
15002excellentexcellent11excellent
14003excellentexcellent11excellent
13003excellentexcellent11excellent
120036goodexcellent11excellent
110031goodexcellent11excellent
10002excellentexcellent11excellent
090053goodexcellent11excellent
08002excellentexcellent11excellent
07006excellentexcellent11excellent
06005excellentexcellent11excellent
05004excellentexcellent11excellent
04004excellentexcellent11excellent
03004excellentexcellent11excellent
02007excellentexcellent11excellent
01007excellentexcellent11excellent