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
190067moderately pollutedexcellent71excellent
180061moderately pollutedexcellent61excellent
170058lightly pollutedexcellent101excellent
160057lightly pollutedexcellent121excellent
150049lightly pollutedexcellent101excellent
140042lightly pollutedexcellent101excellent
130051lightly pollutedexcellent121excellent
120062moderately pollutedgood141excellent
110071moderately pollutedgood131excellent
100062moderately pollutedexcellent121excellent
090063moderately pollutedexcellent121excellent
080062moderately pollutedexcellent121excellent
070055lightly pollutedexcellent111excellent
060056lightly pollutedexcellent101excellent
050054lightly pollutedexcellent101excellent
040049lightly pollutedexcellent101excellent
030046lightly pollutedexcellent91excellent
020048lightly pollutedexcellent91excellent
010044lightly pollutedexcellent91excellent
000041lightly pollutedexcellent71excellent
230033goodexcellent61excellent
220033goodexcellent61excellent
210024goodexcellent61excellent
200029goodexcellent61excellent