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
10003excellentexcellent11excellent
09005excellentexcellent11excellent
08008excellentexcellent11excellent
07005excellentexcellent11excellent
06009excellentexcellent11excellent
05005excellentexcellent11excellent
04006excellentexcellent11excellent
030011excellentexcellent11excellent
020014excellentexcellent11excellent
01008excellentexcellent11excellent
00009excellentexcellent11excellent
23008excellentexcellent11excellent
22006excellentexcellent11excellent
21007excellentexcellent11excellent
20005excellentexcellent11excellent
19004excellentexcellent11excellent
18003excellentexcellent11excellent
17001excellentexcellent11excellent
16001excellentexcellent11excellent
15002excellentexcellent11excellent
14001excellentexcellent11excellent
13002excellentexcellent11excellent
12001excellentexcellent11excellent
11002excellentexcellent11excellent