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
110057lightly pollutedexcellent101excellent
100061moderately pollutedexcellent111excellent
090059lightly pollutedexcellent101excellent
080060lightly pollutedexcellent91excellent
070066moderately pollutedexcellent91excellent
060063moderately pollutedexcellent81excellent
050057lightly pollutedexcellent81excellent
040055lightly pollutedexcellent71excellent
030052lightly pollutedexcellent71excellent
020047lightly pollutedexcellent71excellent
010051lightly pollutedexcellent71excellent
000049lightly pollutedexcellent71excellent
230036goodexcellent61excellent
220032goodexcellent61excellent
210062moderately pollutedexcellent111excellent
2000131severely pollutedgood191excellent
190098heavily pollutedgood201excellent
1800106heavily pollutedgood181excellent
1700112heavily pollutedgood181excellent
160096heavily pollutedgood171excellent
150086heavily pollutedgood161excellent
140078moderately pollutedgood161excellent
130078moderately pollutedgood151excellent
120076moderately pollutedgood151excellent