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
110013excellentexcellent11excellent
100042goodexcellent11excellent
090033goodexcellent21excellent
080011excellentexcellent21excellent
070013excellentexcellent21excellent
060014excellentexcellent31excellent
050015excellentexcellent21excellent
040014excellentexcellent21excellent
030014excellentexcellent31excellent
020018excellentexcellent31excellent
010018excellentexcellent31excellent
000017excellentexcellent41excellent
230014excellentexcellent31excellent
220013excellentexcellent21excellent
210015excellentexcellent21excellent
20009excellentexcellent11excellent
19007excellentexcellent21excellent
18007excellentexcellent11excellent
17008excellentexcellent11excellent
16006excellentexcellent11excellent
150022goodexcellent11excellent
14009excellentexcellent11excellent
1300123moderately pollutedexcellent11excellent
12007excellentexcellent11excellent