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
020026goodexcellent21excellent
010021goodexcellent31excellent
000014goodexcellent31excellent
230020goodexcellent41excellent
220014goodexcellent31excellent
210020goodexcellent31excellent
200016goodexcellent31excellent
190013goodexcellent21excellent
180012excellentexcellent21excellent
17009excellentexcellent21excellent
16007excellentexcellent11excellent
15006excellentexcellent11excellent
14005excellentexcellent11excellent
13002excellentexcellent11excellent
12004excellentexcellent11excellent
11004excellentexcellent11excellent
10005excellentexcellent11excellent
09004excellentexcellent11excellent
08005excellentexcellent11excellent
07005excellentexcellent11excellent
06004excellentexcellent11excellent
05004excellentexcellent11excellent
04003excellentexcellent11excellent
03004excellentexcellent11excellent