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
160015goodexcellent21excellent
15009excellentexcellent21excellent
14009excellentexcellent11excellent
13009excellentexcellent11excellent
120011excellentexcellent21excellent
110011excellentexcellent11excellent
100011excellentexcellent21excellent
090012excellentexcellent21excellent
080012excellentexcellent21excellent
070010excellentexcellent21excellent
060011excellentexcellent21excellent
05005excellentexcellent11excellent
04003excellentexcellent11excellent
03003excellentexcellent11excellent
02004excellentexcellent11excellent
01003excellentexcellent11excellent
00002excellentexcellent11excellent
23002excellentexcellent11excellent
22005excellentexcellent11excellent
21006excellentexcellent11excellent
20006excellentexcellent11excellent
19005excellentexcellent11excellent
18004excellentexcellent11excellent
17004excellentexcellent11excellent