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
19009excellentexcellent21excellent
18008excellentexcellent11excellent
170013excellentexcellent21excellent
160012excellentexcellent21excellent
150014excellentexcellent21excellent
140016excellentexcellent21excellent
130022goodexcellent21excellent
120015excellentexcellent21excellent
110019excellentexcellent21excellent
100015excellentexcellent21excellent
090015excellentexcellent21excellent
080016excellentexcellent21excellent
070015excellentexcellent21excellent
060017excellentexcellent21excellent
050012excellentexcellent21excellent
040013excellentexcellent11excellent
030012excellentexcellent11excellent
020011excellentexcellent11excellent
01009excellentexcellent11excellent
00005excellentexcellent11excellent
230010excellentexcellent11excellent
22006excellentexcellent21excellent
210081lightly pollutedexcellent11excellent
20006excellentexcellent11excellent