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
100045lightly pollutedgood151excellent
090054lightly pollutedgood131excellent
080048lightly pollutedexcellent111excellent
070041lightly pollutedexcellent81excellent
060043lightly pollutedexcellent81excellent
050042lightly pollutedexcellent81excellent
040044lightly pollutedexcellent81excellent
030039lightly pollutedexcellent81excellent
020036goodexcellent71excellent
010033goodexcellent71excellent
000026goodexcellent51excellent
230025goodexcellent41excellent
220027goodexcellent41excellent
210021goodexcellent41excellent
200017goodexcellent31excellent
190015goodexcellent31excellent
180014goodexcellent21excellent
170010excellentexcellent11excellent
16007excellentexcellent11excellent
15007excellentexcellent11excellent
14006excellentexcellent21excellent
13009excellentexcellent21excellent
12008excellentexcellent21excellent
110012excellentexcellent21excellent