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
07004excellentexcellent11excellent
06003excellentexcellent11excellent
05003excellentexcellent11excellent
04003excellentexcellent11excellent
03003excellentexcellent11excellent
02004excellentexcellent11excellent
01004excellentexcellent11excellent
00006excellentexcellent11excellent
23007excellentexcellent11excellent
22003excellentexcellent11excellent
21003excellentexcellent11excellent
20002excellentexcellent11excellent
19001excellentexcellent11excellent
18001excellentexcellent11excellent
17001excellentexcellent11excellent
16001excellentexcellent11excellent
15001excellentexcellent11excellent
14001excellentexcellent11excellent
13001excellentexcellent11excellent
12001excellentexcellent11excellent
11002excellentexcellent11excellent
10001excellentexcellent11excellent
09002excellentexcellent11excellent
08001excellentexcellent11excellent