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
14003excellentexcellent11excellent
13003excellentexcellent11excellent
120036goodexcellent11excellent
110031goodexcellent11excellent
10002excellentexcellent11excellent
090053goodexcellent11excellent
08002excellentexcellent11excellent
07006excellentexcellent11excellent
06005excellentexcellent11excellent
05004excellentexcellent11excellent
04004excellentexcellent11excellent
03004excellentexcellent11excellent
02007excellentexcellent11excellent
01007excellentexcellent11excellent
00009excellentexcellent21excellent
23006excellentexcellent11excellent
22006excellentexcellent11excellent
21005excellentexcellent21excellent
20004excellentexcellent11excellent
19002excellentexcellent11excellent
18001excellentexcellent11excellent
17003excellentexcellent11excellent
16004excellentexcellent11excellent
150010excellentexcellent11excellent