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
030017goodexcellent21excellent
020018goodexcellent31excellent
010020goodexcellent31excellent
000051lightly pollutedexcellent31excellent
230018goodexcellent31excellent
220014goodexcellent21excellent
210011excellentexcellent11excellent
20009excellentexcellent11excellent
19006excellentexcellent11excellent
18006excellentexcellent11excellent
17005excellentexcellent11excellent
16005excellentexcellent11excellent
15006excellentexcellent11excellent
140011excellentexcellent11excellent
13007excellentexcellent11excellent
12006excellentexcellent11excellent
11006excellentexcellent11excellent
100011excellentexcellent11excellent
09007excellentexcellent21excellent
080013goodexcellent21excellent
070016goodexcellent21excellent
060016goodexcellent21excellent
050012excellentexcellent21excellent
040011excellentexcellent21excellent