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
20009excellentexcellent21excellent
190021goodexcellent21excellent
18009excellentexcellent21excellent
170065moderately pollutedexcellent51excellent
160041lightly pollutedexcellent71excellent
150044lightly pollutedexcellent61excellent
140051lightly pollutedexcellent51excellent
130040lightly pollutedexcellent51excellent
120047lightly pollutedexcellent41excellent
110042lightly pollutedexcellent41excellent
100025goodexcellent51excellent
090031goodexcellent91excellent
080040lightly pollutedexcellent81excellent
070028goodexcellent61excellent
060022goodexcellent51excellent
050023goodexcellent51excellent
040022goodexcellent51excellent
030021goodexcellent41excellent
020020goodexcellent41excellent
010016goodexcellent31excellent
000016goodexcellent31excellent
230017goodexcellent31excellent
220017goodexcellent11excellent
210017goodexcellent21excellent