PM 2.5
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]
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
230019goodexcellent31excellent
220017goodexcellent31excellent
210018goodexcellent31excellent
200017goodexcellent31excellent
190015goodexcellent31excellent
180016goodexcellent31excellent
170017goodexcellent31excellent
160021goodexcellent41excellent
150027goodexcellent61excellent
140036goodexcellent71excellent
130035goodexcellent71excellent
120031goodexcellent61excellent
110035goodexcellent61excellent
100035goodexcellent71excellent
090038lightly pollutedexcellent61excellent
080040lightly pollutedexcellent61excellent
070038lightly pollutedexcellent61excellent
060037lightly pollutedexcellent61excellent
050035goodexcellent61excellent
040029goodexcellent61excellent
030031goodexcellent61excellent
020041lightly pollutedexcellent71excellent
010035goodexcellent71excellent
000032goodexcellent61excellent