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
120068moderately pollutedexcellent11excellent
110027goodexcellent11excellent
10001excellentexcellent11excellent
09001excellentexcellent11excellent
08001excellentexcellent11excellent
07002excellentexcellent11excellent
06003excellentexcellent11excellent
05002excellentexcellent11excellent
04002excellentexcellent11excellent
03002excellentexcellent11excellent
02005excellentexcellent11excellent
01004excellentexcellent11excellent
00005excellentexcellent11excellent
23003excellentexcellent11excellent
22004excellentexcellent11excellent
21002excellentexcellent11excellent
20002excellentexcellent11excellent
19001excellentexcellent11excellent
18001excellentexcellent11excellent
17002excellentexcellent11excellent
16004excellentexcellent11excellent
150020goodexcellent11excellent
140017goodexcellent11excellent
130026goodexcellent11excellent