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
18002excellentexcellent11excellent
17003excellentexcellent11excellent
16005excellentexcellent11excellent
15002excellentexcellent11excellent
14002excellentexcellent11excellent
13006excellentexcellent11excellent
12003excellentexcellent21excellent
11004excellentexcellent11excellent
10003excellentexcellent11excellent
09007excellentexcellent11excellent
08007excellentexcellent21excellent
070010excellentexcellent21excellent
060010excellentexcellent11excellent
050012excellentexcellent11excellent
040018excellentexcellent21excellent
030018excellentexcellent21excellent
020024goodexcellent21excellent
010019excellentexcellent21excellent
000015excellentexcellent21excellent
230018excellentexcellent21excellent
220014excellentexcellent21excellent
210014excellentexcellent21excellent
200012excellentexcellent11excellent
19005excellentexcellent11excellent