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
10009excellentexcellent21excellent
090015goodexcellent31excellent
080020goodexcellent31excellent
070023goodexcellent31excellent
060025goodexcellent31excellent
050019goodexcellent31excellent
040030goodexcellent21excellent
030015goodexcellent21excellent
020016goodexcellent21excellent
010015goodexcellent21excellent
000017goodexcellent21excellent
230024goodexcellent31excellent
220022goodexcellent31excellent
210038lightly pollutedexcellent11excellent
20006excellentexcellent11excellent
19003excellentexcellent11excellent
18004excellentexcellent11excellent
17007excellentexcellent21excellent
160010excellentexcellent21excellent
150011excellentexcellent21excellent
140017goodexcellent31excellent
130016goodexcellent31excellent