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
100011excellentexcellent11excellent
09008excellentexcellent11excellent
08006excellentexcellent11excellent
07006excellentexcellent11excellent
06007excellentexcellent11excellent
05008excellentexcellent11excellent
04008excellentexcellent11excellent
03007excellentexcellent11excellent
02007excellentexcellent11excellent
01009excellentexcellent11excellent
00008excellentexcellent11excellent
23008excellentexcellent11excellent
22005excellentexcellent11excellent
21003excellentexcellent11excellent
20003excellentexcellent11excellent
19003excellentexcellent11excellent
18005excellentexcellent11excellent
17004excellentexcellent11excellent
16003excellentexcellent11excellent
15003excellentexcellent11excellent
14007excellentexcellent11excellent
13006excellentexcellent11excellent
12009excellentexcellent11excellent
11009excellentexcellent11excellent