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
100028goodexcellent61excellent
090026goodexcellent61excellent
080030goodexcellent71excellent
070032goodexcellent81excellent
060024goodexcellent61excellent
050024goodexcellent61excellent
040030goodexcellent91excellent
030046lightly pollutedgood141excellent
020055lightly pollutedgood141excellent
010060lightly pollutedgood151excellent
000060lightly pollutedgood171excellent
230063moderately pollutedgood171excellent
220080moderately pollutedgood181excellent
210066moderately pollutedgood171excellent
200081moderately pollutedgood161excellent
190079moderately pollutedgood161excellent
180087heavily pollutedgood171excellent
170080moderately pollutedgood161excellent
160076moderately pollutedgood151excellent
150074moderately pollutedgood141excellent
140071moderately pollutedgood151excellent
130079moderately pollutedgood151excellent
1200100heavily pollutedgood181excellent
1100124severely pollutedgood241excellent