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
12005excellentexcellent11excellent
11006excellentexcellent11excellent
10007excellentexcellent11excellent
09009excellentexcellent11excellent
080011excellentexcellent21excellent
070013goodexcellent21excellent
060012excellentexcellent21excellent
050012excellentexcellent21excellent
040012excellentexcellent21excellent
030011excellentexcellent21excellent
020014goodexcellent21excellent
010016goodexcellent21excellent
000018goodexcellent11excellent
230016goodexcellent11excellent
22008excellentexcellent11excellent
21007excellentexcellent11excellent
20004excellentexcellent11excellent
19002excellentexcellent11excellent
18004excellentexcellent11excellent
17004excellentexcellent11excellent
16005excellentexcellent11excellent
15005excellentexcellent11excellent
14007excellentexcellent11excellent
13006excellentexcellent11excellent