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
090017goodexcellent31excellent
080019goodexcellent31excellent
070021goodexcellent31excellent
060022goodexcellent31excellent
050031goodexcellent31excellent
040033goodexcellent31excellent
030035goodexcellent31excellent
020039lightly pollutedexcellent31excellent
010034goodexcellent41excellent
000035goodexcellent41excellent
230026goodexcellent31excellent
220023goodexcellent41excellent
210020goodexcellent41excellent
200016goodexcellent31excellent
190015goodexcellent31excellent
180014goodexcellent21excellent
17008excellentexcellent21excellent
16006excellentexcellent21excellent
15005excellentexcellent21excellent
140010excellentexcellent31excellent
130012excellentexcellent31excellent
120018goodexcellent41excellent
110021goodexcellent51excellent
100026goodexcellent51excellent