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
0100106heavily pollutedgood231excellent
0000101heavily pollutedgood231excellent
230093heavily pollutedgood221excellent
220091heavily pollutedgood191excellent
210095heavily pollutedgood191excellent
200093heavily pollutedgood192excellent
1900100heavily pollutedgood233excellent
1800125severely pollutedgood282excellent
1700145severely pollutedgood332excellent
1600149severely pollutedgood351excellent
1500162severely pollutedgood361excellent
1400173severely pollutedlightly polluted381excellent
1300189severely pollutedlightly polluted391excellent
1200178severely pollutedlightly polluted371excellent
1100150severely pollutedgood291excellent
100097heavily pollutedgood191excellent
090069moderately pollutedgood161excellent
080068moderately pollutedexcellent111excellent
070075moderately pollutedexcellent71excellent
060067moderately pollutedexcellent91excellent
050063moderately pollutedexcellent111excellent
040061moderately pollutedgood131excellent
030066moderately pollutedgood131excellent
020075moderately pollutedgood131excellent