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
17005excellentexcellent11excellent
16005excellentexcellent11excellent
150032goodexcellent11excellent
14006excellentexcellent11excellent
130011excellentexcellent11excellent
120014excellentexcellent11excellent
110010excellentexcellent11excellent
100011excellentexcellent11excellent
090012excellentexcellent21excellent
080017excellentexcellent21excellent
070034goodexcellent31excellent
060017excellentexcellent41excellent
050014excellentexcellent21excellent
040016excellentexcellent41excellent
030014excellentexcellent41excellent
020014excellentexcellent21excellent
010011excellentexcellent11excellent
000011excellentexcellent11excellent
230013excellentexcellent21excellent
220010excellentexcellent11excellent
210012excellentexcellent11excellent
20007excellentexcellent11excellent
19009excellentexcellent11excellent
18008excellentexcellent11excellent