Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
130058goodexcellent111excellent
120056goodexcellent121excellent
110074lightly pollutedexcellent131excellent
100056goodexcellent131excellent
090058goodexcellent171excellent
080087lightly pollutedexcellent191excellent
070095lightly pollutedexcellent191excellent
060094lightly pollutedexcellent171excellent
050098lightly pollutedexcellent191excellent
040094lightly pollutedexcellent181excellent
030081lightly pollutedexcellent141excellent
020084lightly pollutedexcellent141excellent
010082lightly pollutedexcellent151excellent
000088lightly pollutedexcellent171excellent
230095lightly pollutedexcellent181excellent
220089lightly pollutedexcellent191excellent
210097lightly pollutedgood211excellent
2000116moderately pollutedgood261excellent
1900109moderately pollutedgood261excellent
1800120moderately pollutedgood261excellent
1700116moderately pollutedgood261excellent
1600107moderately pollutedgood281excellent
1500132moderately pollutedgood291excellent
1400140moderately pollutedgood321excellent