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
230055lightly pollutedexcellent51excellent
220052lightly pollutedexcellent51excellent
210037lightly pollutedexcellent41excellent
200022goodexcellent41excellent
190021goodexcellent41excellent
180014goodexcellent31excellent
170013goodexcellent21excellent
160011excellentexcellent21excellent
150012excellentexcellent21excellent
140011excellentexcellent21excellent
130017goodexcellent31excellent
120029goodexcellent61excellent
110032goodexcellent81excellent
100049lightly pollutedexcellent91excellent
090052lightly pollutedexcellent101excellent
080056lightly pollutedexcellent91excellent
070050lightly pollutedexcellent91excellent
060044lightly pollutedexcellent81excellent
050045lightly pollutedexcellent71excellent
040042lightly pollutedexcellent71excellent
030042lightly pollutedexcellent61excellent
020041lightly pollutedexcellent61excellent
010039lightly pollutedexcellent61excellent
000040lightly pollutedexcellent61excellent