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
090012excellentexcellent21excellent
080014goodexcellent31excellent
070022goodexcellent41excellent
060021goodexcellent31excellent
050021goodexcellent31excellent
040022goodexcellent31excellent
030021goodexcellent31excellent
020022goodexcellent31excellent
010026goodexcellent31excellent
000022goodexcellent31excellent
230020goodexcellent21excellent
220017goodexcellent21excellent
210015goodexcellent21excellent
200013goodexcellent21excellent
190013goodexcellent21excellent
18009excellentexcellent11excellent
170010excellentexcellent11excellent
16007excellentexcellent11excellent
15009excellentexcellent21excellent
14009excellentexcellent11excellent
13009excellentexcellent21excellent
120010excellentexcellent21excellent
110011excellentexcellent21excellent
100015goodexcellent21excellent