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
120030goodexcellent71excellent
110040lightly pollutedexcellent91excellent
100032goodexcellent81excellent
090031goodexcellent111excellent
080049lightly pollutedexcellent121excellent
070047lightly pollutedexcellent111excellent
060052lightly pollutedexcellent111excellent
050052lightly pollutedexcellent101excellent
040050lightly pollutedexcellent101excellent
030041lightly pollutedexcellent91excellent
020043lightly pollutedexcellent81excellent
010044lightly pollutedexcellent91excellent
000047lightly pollutedexcellent101excellent
230048lightly pollutedexcellent101excellent
220046lightly pollutedexcellent111excellent
210051lightly pollutedexcellent121excellent
200059lightly pollutedgood141excellent
190057lightly pollutedgood131excellent
180057lightly pollutedgood141excellent
170061moderately pollutedgood151excellent
160056lightly pollutedgood161excellent
150068moderately pollutedgood171excellent
140071moderately pollutedgood191excellent
130063moderately pollutedgood181excellent