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
130049lightly pollutedexcellent121excellent
120062moderately pollutedexcellent121excellent
110047lightly pollutedexcellent121excellent
100060lightly pollutedexcellent111excellent
090041lightly pollutedexcellent91excellent
080049lightly pollutedexcellent101excellent
070049lightly pollutedexcellent101excellent
060044lightly pollutedexcellent91excellent
050048lightly pollutedexcellent101excellent
040044lightly pollutedexcellent101excellent
030043lightly pollutedexcellent101excellent
020041lightly pollutedexcellent101excellent
010046lightly pollutedexcellent111excellent
000053lightly pollutedexcellent121excellent
230055lightly pollutedgood131excellent
220061moderately pollutedgood131excellent
210063moderately pollutedgood141excellent
200069moderately pollutedgood151excellent
190068moderately pollutedgood141excellent
180059lightly pollutedgood141excellent
170062moderately pollutedgood141excellent
160073moderately pollutedgood151excellent
150062moderately pollutedgood151excellent
140060lightly pollutedgood161excellent