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
12008excellentexcellent21excellent
110011excellentexcellent21excellent
100016goodexcellent31excellent
090029goodexcellent71excellent
080039lightly pollutedexcellent101excellent
070046lightly pollutedexcellent101excellent
060045lightly pollutedexcellent81excellent
050050lightly pollutedexcellent91excellent
040033goodexcellent61excellent
030025goodexcellent41excellent
020019goodexcellent31excellent
010014goodexcellent21excellent
000012excellentexcellent21excellent
230012excellentexcellent31excellent
220014goodexcellent31excellent
210014goodexcellent31excellent
200012excellentexcellent21excellent
190012excellentexcellent21excellent
18009excellentexcellent21excellent
17008excellentexcellent21excellent
16009excellentexcellent21excellent
15009excellentexcellent21excellent
140012excellentexcellent21excellent
130013goodexcellent21excellent