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
090015goodexcellent21excellent
080017goodexcellent21excellent
070027goodexcellent41excellent
060024goodexcellent41excellent
050028goodexcellent31excellent
040029goodexcellent41excellent
030027goodexcellent31excellent
020021goodexcellent31excellent
010020goodexcellent31excellent
000018goodexcellent31excellent
230014goodexcellent31excellent
220026goodexcellent31excellent
210019goodexcellent31excellent
200014goodexcellent31excellent
190015goodexcellent31excellent
180015goodexcellent21excellent
17009excellentexcellent11excellent
16009excellentexcellent11excellent
15008excellentexcellent11excellent
14007excellentexcellent11excellent
13007excellentexcellent11excellent
12008excellentexcellent11excellent
11008excellentexcellent11excellent
10008excellentexcellent11excellent