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
200050lightly pollutedexcellent101excellent
190041lightly pollutedexcellent91excellent
180039lightly pollutedexcellent101excellent
170055lightly pollutedexcellent121excellent
160047lightly pollutedgood131excellent
150051lightly pollutedexcellent121excellent
140053lightly pollutedgood131excellent
130044lightly pollutedgood131excellent
120044lightly pollutedgood131excellent
110059lightly pollutedgood131excellent
100058lightly pollutedexcellent121excellent
090048lightly pollutedexcellent121excellent
080055lightly pollutedexcellent111excellent
070063moderately pollutedexcellent111excellent
060050lightly pollutedexcellent101excellent
050091heavily pollutedexcellent111excellent
040064moderately pollutedexcellent111excellent
030056lightly pollutedexcellent121excellent
020061moderately pollutedexcellent121excellent
010062moderately pollutedgood131excellent
000068moderately pollutedgood131excellent
230069moderately pollutedgood131excellent
220073moderately pollutedgood141excellent
210071moderately pollutedgood131excellent