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
070034goodexcellent51excellent
060045lightly pollutedexcellent51excellent
050038lightly pollutedexcellent51excellent
040036goodexcellent51excellent
030040lightly pollutedexcellent51excellent
020043lightly pollutedexcellent51excellent
010047lightly pollutedexcellent51excellent
000051lightly pollutedexcellent51excellent
230052lightly pollutedexcellent51excellent
220036goodexcellent41excellent
210023goodexcellent41excellent
200022goodexcellent31excellent
190019goodexcellent31excellent
180016goodexcellent21excellent
170014goodexcellent21excellent
160012excellentexcellent21excellent
150011excellentexcellent21excellent
14008excellentexcellent11excellent
13005excellentexcellent21excellent
12007excellentexcellent21excellent
110010excellentexcellent21excellent
10009excellentexcellent21excellent
090012excellentexcellent31excellent
080025goodexcellent41excellent