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
100014goodexcellent21excellent
090015goodexcellent21excellent
080020goodexcellent21excellent
070019goodexcellent21excellent
060020goodexcellent21excellent
050024goodexcellent21excellent
040023goodexcellent21excellent
030024goodexcellent21excellent
020025goodexcellent21excellent
010028goodexcellent21excellent
000032goodexcellent31excellent
230025goodexcellent31excellent
220021goodexcellent21excellent
210020goodexcellent21excellent
200021goodexcellent31excellent
190022goodexcellent21excellent
180023goodexcellent21excellent
170026goodexcellent31excellent
160028goodexcellent31excellent
150026goodexcellent31excellent
140025goodexcellent31excellent
130025goodexcellent21excellent
120022goodexcellent21excellent
110020goodexcellent31excellent