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
1300181severely pollutedlightly polluted521excellent
1200198severely pollutedlightly polluted541excellent
1100200severely pollutedlightly polluted551excellent
1000182severely pollutedlightly polluted411excellent
0900129severely pollutedgood281excellent
0800125severely pollutedgood291excellent
0700132severely pollutedgood331excellent
0600142severely pollutedgood341excellent
0500134severely pollutedgood321excellent
0400131severely pollutedgood261excellent
0300138severely pollutedgood251excellent
0200158severely pollutedgood321excellent
0100167severely pollutedgood301excellent
0000175severely pollutedgood321excellent
2300186severely pollutedgood341excellent
2200200severely pollutedgood341excellent
2100186severely pollutedgood341excellent
2000193severely pollutedgood331excellent
1900164severely pollutedgood321excellent
1800158severely pollutedgood311excellent
1700159severely pollutedgood321excellent
1600160severely pollutedgood341excellent
1500135severely pollutedgood281excellent
1400133severely pollutedgood311excellent