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
180047lightly pollutedgood131excellent
170053lightly pollutedgood131excellent
160061moderately pollutedgood141excellent
150062moderately pollutedgood141excellent
140057lightly pollutedgood141excellent
130060lightly pollutedgood141excellent
120057lightly pollutedgood151excellent
110074moderately pollutedgood131excellent
100055lightly pollutedgood131excellent
090071moderately pollutedexcellent121excellent
080067moderately pollutedexcellent111excellent
070069moderately pollutedexcellent111excellent
060071moderately pollutedexcellent101excellent
050064moderately pollutedexcellent111excellent
040076moderately pollutedexcellent121excellent
030065moderately pollutedgood131excellent
020072moderately pollutedgood131excellent
010072moderately pollutedexcellent121excellent
000070moderately pollutedgood131excellent
230068moderately pollutedexcellent121excellent
220055lightly pollutedexcellent111excellent
210058lightly pollutedexcellent111excellent
200051lightly pollutedexcellent111excellent
190058lightly pollutedexcellent111excellent