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
08005excellentexcellent11excellent
07004excellentexcellent11excellent
06006excellentexcellent11excellent
05004excellentexcellent11excellent
04003excellentexcellent11excellent
03006excellentexcellent11excellent
02008excellentexcellent11excellent
01005excellentexcellent11excellent
00006excellentexcellent11excellent
23004excellentexcellent11excellent
22004excellentexcellent11excellent
21004excellentexcellent11excellent
20003excellentexcellent11excellent
19002excellentexcellent11excellent
18001excellentexcellent11excellent
17001excellentexcellent11excellent
16001excellentexcellent11excellent
15001excellentexcellent11excellent
14001excellentexcellent11excellent
13001excellentexcellent11excellent
12001excellentexcellent11excellent
11001excellentexcellent11excellent
10001excellentexcellent11excellent
09003excellentexcellent11excellent