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
060052lightly pollutedexcellent71excellent
050047lightly pollutedexcellent71excellent
040046lightly pollutedexcellent71excellent
030047lightly pollutedexcellent61excellent
020042lightly pollutedexcellent61excellent
010041lightly pollutedexcellent51excellent
000038lightly pollutedexcellent61excellent
230042lightly pollutedexcellent61excellent
220044lightly pollutedexcellent61excellent
210047lightly pollutedexcellent71excellent
200050lightly pollutedexcellent71excellent
190051lightly pollutedexcellent61excellent
180052lightly pollutedexcellent91excellent
170046lightly pollutedexcellent91excellent
160036goodexcellent81excellent
150036goodexcellent81excellent
140035goodexcellent81excellent
130030goodexcellent71excellent
120032goodexcellent71excellent
110039lightly pollutedexcellent81excellent
100040lightly pollutedexcellent81excellent
090036goodexcellent71excellent
080034goodexcellent71excellent
070035goodexcellent61excellent