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
110042lightly pollutedexcellent101excellent
100046lightly pollutedexcellent91excellent
090043lightly pollutedexcellent71excellent
080035goodexcellent61excellent
070032goodexcellent51excellent
060025goodexcellent61excellent
050029goodexcellent71excellent
040032goodexcellent71excellent
030033goodexcellent71excellent
010042lightly pollutedexcellent81excellent
000039lightly pollutedexcellent101excellent
230055lightly pollutedexcellent101excellent
220045lightly pollutedexcellent111excellent
210056lightly pollutedexcellent111excellent
200049lightly pollutedexcellent111excellent
190053lightly pollutedexcellent111excellent
180056lightly pollutedexcellent91excellent
170043lightly pollutedexcellent81excellent
160044lightly pollutedexcellent81excellent
150045lightly pollutedexcellent81excellent
140043lightly pollutedexcellent81excellent
130044lightly pollutedexcellent61excellent
120039lightly pollutedexcellent51excellent