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
090072moderately pollutedgood161excellent
080068moderately pollutedexcellent111excellent
070075moderately pollutedexcellent71excellent
060067moderately pollutedexcellent91excellent
050063moderately pollutedexcellent111excellent
040061moderately pollutedgood131excellent
030066moderately pollutedgood131excellent
020075moderately pollutedgood131excellent
010067moderately pollutedexcellent121excellent
000073moderately pollutedgood131excellent
230073moderately pollutedexcellent121excellent
220077moderately pollutedexcellent121excellent
210076moderately pollutedexcellent121excellent
200073moderately pollutedexcellent121excellent
190054lightly pollutedexcellent111excellent
180053lightly pollutedexcellent111excellent
170052lightly pollutedexcellent111excellent
160049lightly pollutedexcellent101excellent
150046lightly pollutedexcellent101excellent
140045lightly pollutedexcellent91excellent
130037lightly pollutedexcellent71excellent
120035goodexcellent61excellent
110029goodexcellent51excellent
100028goodexcellent51excellent