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
230054lightly pollutedexcellent71excellent
220054lightly pollutedexcellent71excellent
210056lightly pollutedexcellent81excellent
200045lightly pollutedexcellent71excellent
190025goodexcellent51excellent
180014goodexcellent31excellent
170013goodexcellent31excellent
160013goodexcellent21excellent
15006excellentexcellent11excellent
14006excellentexcellent21excellent
13006excellentexcellent21excellent
12009excellentexcellent21excellent
110019goodexcellent51excellent
100038lightly pollutedexcellent81excellent
090045lightly pollutedexcellent101excellent
080034goodexcellent61excellent
070023goodexcellent41excellent
060025goodexcellent61excellent
050025goodexcellent51excellent
040024goodexcellent51excellent
030029goodexcellent51excellent
020032goodexcellent71excellent
010036goodexcellent71excellent
000040lightly pollutedexcellent81excellent