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
22007excellentexcellent11excellent
21005excellentexcellent11excellent
20006excellentexcellent11excellent
19003excellentexcellent11excellent
18002excellentexcellent11excellent
17002excellentexcellent11excellent
160012excellentexcellent11excellent
15004excellentexcellent11excellent
140018goodexcellent11excellent
130010excellentexcellent11excellent
12004excellentexcellent11excellent
11005excellentexcellent11excellent
100038lightly pollutedexcellent11excellent
09008excellentexcellent21excellent
080011excellentexcellent31excellent
070010excellentexcellent31excellent
060012excellentexcellent21excellent
05008excellentexcellent21excellent
040010excellentexcellent31excellent
030011excellentexcellent31excellent
020010excellentexcellent31excellent
01008excellentexcellent21excellent
00007excellentexcellent11excellent
23007excellentexcellent11excellent