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
17008excellentexcellent11excellent
16007excellentexcellent11excellent
15009excellentexcellent21excellent
140011excellentexcellent21excellent
130015goodexcellent21excellent
12009excellentexcellent21excellent
110023goodexcellent11excellent
10009excellentexcellent21excellent
09009excellentexcellent11excellent
08009excellentexcellent21excellent
07008excellentexcellent11excellent
06009excellentexcellent11excellent
05006excellentexcellent11excellent
04007excellentexcellent11excellent
03006excellentexcellent11excellent
02006excellentexcellent11excellent
01005excellentexcellent11excellent
00003excellentexcellent11excellent
23005excellentexcellent11excellent
22004excellentexcellent11excellent
210054lightly pollutedexcellent11excellent
20003excellentexcellent11excellent
19004excellentexcellent11excellent
18006excellentexcellent11excellent