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
090021goodexcellent31excellent
080033goodexcellent51excellent
070046lightly pollutedexcellent41excellent
060048lightly pollutedexcellent51excellent
050053lightly pollutedexcellent31excellent
040054lightly pollutedexcellent31excellent
030054lightly pollutedexcellent31excellent
020067moderately pollutedexcellent41excellent
010073moderately pollutedexcellent41excellent
000068moderately pollutedexcellent51excellent
230064moderately pollutedexcellent41excellent
220076moderately pollutedexcellent41excellent
210051lightly pollutedexcellent41excellent
200056lightly pollutedexcellent81excellent
190066moderately pollutedexcellent61excellent
180058lightly pollutedgood141excellent
170062moderately pollutedexcellent121excellent
160062moderately pollutedexcellent31excellent
150056lightly pollutedexcellent31excellent
140056lightly pollutedexcellent21excellent
130048lightly pollutedexcellent21excellent
120038lightly pollutedexcellent21excellent
110035goodexcellent21excellent
100039lightly pollutedexcellent21excellent