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
05009excellentexcellent21excellent
04009excellentexcellent11excellent
030011excellentexcellent21excellent
020010excellentexcellent21excellent
010011excellentexcellent11excellent
000013excellentexcellent11excellent
230012excellentexcellent21excellent
220011excellentexcellent21excellent
21007excellentexcellent11excellent
20005excellentexcellent11excellent
19005excellentexcellent11excellent
18002excellentexcellent11excellent
17003excellentexcellent11excellent
16004excellentexcellent11excellent
15003excellentexcellent11excellent
14004excellentexcellent11excellent
13003excellentexcellent11excellent
12004excellentexcellent11excellent
11003excellentexcellent11excellent
10006excellentexcellent11excellent
09004excellentexcellent21excellent
08005excellentexcellent11excellent
07006excellentexcellent11excellent
06005excellentexcellent11excellent