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
10005excellentexcellent21excellent
090014goodexcellent31excellent
080016goodexcellent21excellent
070018goodexcellent21excellent
060018goodexcellent31excellent
050018goodexcellent31excellent
040016goodexcellent21excellent
030010excellentexcellent21excellent
02007excellentexcellent11excellent
01007excellentexcellent21excellent
00009excellentexcellent21excellent
230010excellentexcellent21excellent
22007excellentexcellent11excellent
21008excellentexcellent21excellent
20009excellentexcellent21excellent
19007excellentexcellent21excellent
18007excellentexcellent11excellent
17004excellentexcellent11excellent
16003excellentexcellent11excellent
15003excellentexcellent11excellent
14003excellentexcellent11excellent
13005excellentexcellent11excellent
12005excellentexcellent11excellent
11005excellentexcellent11excellent