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
120019excellentexcellent11excellent
110010excellentexcellent11excellent
100010excellentexcellent11excellent
090012excellentexcellent21excellent
080017excellentexcellent31excellent
070022goodexcellent21excellent
060019excellentexcellent21excellent
050014excellentexcellent21excellent
040014excellentexcellent21excellent
030012excellentexcellent11excellent
020014excellentexcellent11excellent
010011excellentexcellent11excellent
000010excellentexcellent11excellent
230012excellentexcellent21excellent
220012excellentexcellent11excellent
210012excellentexcellent11excellent
20008excellentexcellent11excellent
19007excellentexcellent11excellent
18006excellentexcellent11excellent
170012excellentexcellent11excellent
16007excellentexcellent11excellent
15006excellentexcellent11excellent
14006excellentexcellent11excellent
13005excellentexcellent11excellent