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
100055lightly pollutedexcellent101excellent
090069moderately pollutedgood131excellent
080084moderately pollutedexcellent101excellent
070074moderately pollutedexcellent51excellent
060069moderately pollutedexcellent81excellent
050073moderately pollutedgood131excellent
040074moderately pollutedgood131excellent
030075moderately pollutedgood131excellent
020072moderately pollutedexcellent121excellent
010082moderately pollutedgood131excellent
000085heavily pollutedgood131excellent
230081moderately pollutedgood131excellent
220082moderately pollutedgood141excellent
210072moderately pollutedgood151excellent
200068moderately pollutedgood131excellent
190062moderately pollutedgood131excellent
180066moderately pollutedexcellent111excellent
170056lightly pollutedexcellent121excellent
160051lightly pollutedexcellent111excellent
150053lightly pollutedexcellent121excellent
140055lightly pollutedgood131excellent
130061moderately pollutedgood131excellent
120056lightly pollutedexcellent121excellent
110058lightly pollutedexcellent111excellent