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
210021goodexcellent41excellent
200015goodexcellent31excellent
190010excellentexcellent21excellent
18007excellentexcellent11excellent
17005excellentexcellent11excellent
16006excellentexcellent11excellent
15006excellentexcellent21excellent
140010excellentexcellent21excellent
130010excellentexcellent31excellent
120012excellentexcellent41excellent
110017goodexcellent51excellent
100028goodexcellent71excellent
090030goodexcellent71excellent
080034goodexcellent71excellent
070037lightly pollutedexcellent71excellent
060037lightly pollutedexcellent61excellent
050036goodexcellent61excellent
040036goodexcellent61excellent
030034goodexcellent61excellent
020035goodexcellent61excellent
010036goodexcellent61excellent
000037lightly pollutedexcellent61excellent
230036goodexcellent61excellent
220043lightly pollutedexcellent81excellent