Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
000030goodexcellent61excellent
230045goodexcellent71excellent
220061lightly pollutedexcellent81excellent
210044goodexcellent61excellent
200021goodexcellent41excellent
190022goodexcellent21excellent
180017excellentexcellent21excellent
170018excellentexcellent21excellent
160017excellentexcellent21excellent
150029goodexcellent31excellent
140034goodexcellent31excellent
130030goodexcellent31excellent
120036goodexcellent31excellent
110034goodexcellent31excellent
100042goodexcellent31excellent
090043goodexcellent31excellent
080043goodexcellent31excellent
070037goodexcellent21excellent
060032goodexcellent21excellent
050062lightly pollutedexcellent61excellent
040066lightly pollutedexcellent51excellent
030053goodexcellent51excellent
020042goodexcellent31excellent
010041goodexcellent41excellent