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
22004excellentexcellent11excellent
21002excellentexcellent11excellent
20002excellentexcellent11excellent
19001excellentexcellent11excellent
18001excellentexcellent11excellent
17002excellentexcellent11excellent
16004excellentexcellent11excellent
150020goodexcellent11excellent
140017goodexcellent11excellent
130026goodexcellent11excellent
120012excellentexcellent11excellent
110011excellentexcellent11excellent
100025goodexcellent11excellent
090026goodexcellent11excellent
080055lightly pollutedexcellent11excellent
07009excellentexcellent11excellent
06008excellentexcellent11excellent
050010excellentexcellent11excellent
04009excellentexcellent11excellent
03009excellentexcellent21excellent
020012excellentexcellent21excellent
01009excellentexcellent21excellent
000011excellentexcellent21excellent
23008excellentexcellent11excellent