Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
17006excellentexcellent11excellent
160012excellentexcellent11excellent
150018goodexcellent11excellent
140017goodexcellent11excellent
130022goodexcellent11excellent
12007excellentexcellent11excellent
11007excellentexcellent11excellent
10009excellentexcellent11excellent
09009excellentexcellent21excellent
080013goodexcellent21excellent
070016goodexcellent21excellent
060015goodexcellent21excellent
050013goodexcellent11excellent
040014goodexcellent11excellent
030014goodexcellent11excellent
020011excellentexcellent11excellent
010014goodexcellent11excellent
000013goodexcellent11excellent
23009excellentexcellent11excellent
22008excellentexcellent11excellent
21008excellentexcellent11excellent
20005excellentexcellent11excellent
19004excellentexcellent11excellent
18005excellentexcellent11excellent