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
06006excellentexcellent11excellent
05005excellentexcellent11excellent
04006excellentexcellent11excellent
030053lightly pollutedexcellent11excellent
020046lightly pollutedexcellent11excellent
01006excellentexcellent11excellent
000057lightly pollutedexcellent11excellent
23005excellentexcellent11excellent
22006excellentexcellent11excellent
21005excellentexcellent11excellent
20007excellentexcellent11excellent
19005excellentexcellent11excellent
18006excellentexcellent11excellent
17007excellentexcellent11excellent
16005excellentexcellent11excellent
15005excellentexcellent11excellent
140074moderately pollutedexcellent11excellent
130087heavily pollutedexcellent11excellent
120087heavily pollutedexcellent11excellent
110047lightly pollutedexcellent11excellent
100025goodexcellent11excellent
090012excellentexcellent21excellent
080018goodexcellent21excellent
07007excellentexcellent21excellent