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
11005excellentexcellent11excellent
10005excellentexcellent11excellent
09003excellentexcellent11excellent
08001excellentexcellent11excellent
07001excellentexcellent11excellent
06001excellentexcellent11excellent
05001excellentexcellent11excellent
04003excellentexcellent11excellent
03003excellentexcellent11excellent
02005excellentexcellent11excellent
01007excellentexcellent11excellent
00009excellentexcellent11excellent
230012excellentexcellent11excellent
220012excellentexcellent21excellent
210011excellentexcellent11excellent
20008excellentexcellent11excellent
19008excellentexcellent11excellent
18007excellentexcellent11excellent
17007excellentexcellent11excellent
16008excellentexcellent11excellent
15007excellentexcellent11excellent
14007excellentexcellent11excellent
13007excellentexcellent11excellent
12004excellentexcellent11excellent