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
02008excellentexcellent11excellent
01006excellentexcellent11excellent
00004excellentexcellent11excellent
23004excellentexcellent11excellent
22004excellentexcellent11excellent
21004excellentexcellent11excellent
20003excellentexcellent11excellent
19003excellentexcellent11excellent
18003excellentexcellent11excellent
17003excellentexcellent11excellent
16002excellentexcellent11excellent
150041lightly pollutedexcellent11excellent
14004excellentexcellent11excellent
130012excellentexcellent11excellent
12005excellentexcellent11excellent
11006excellentexcellent11excellent
10007excellentexcellent11excellent
09009excellentexcellent11excellent
080011excellentexcellent21excellent
070013goodexcellent21excellent
060012excellentexcellent21excellent
050012excellentexcellent21excellent
040012excellentexcellent21excellent
030011excellentexcellent21excellent