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
020017excellentexcellent21excellent
010013excellentexcellent21excellent
000015excellentexcellent21excellent
230016excellentexcellent11excellent
220013excellentexcellent21excellent
210011excellentexcellent11excellent
200010excellentexcellent11excellent
19009excellentexcellent21excellent
18008excellentexcellent11excellent
170013excellentexcellent21excellent
160012excellentexcellent21excellent
150014excellentexcellent21excellent
140016excellentexcellent21excellent
130022goodexcellent21excellent
120015excellentexcellent21excellent
110019excellentexcellent21excellent
100015excellentexcellent21excellent
090015excellentexcellent21excellent
080016excellentexcellent21excellent
070015excellentexcellent21excellent
060017excellentexcellent21excellent
050012excellentexcellent21excellent
040013excellentexcellent11excellent
030012excellentexcellent11excellent