Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
22003excellentexcellent11excellent
21003excellentexcellent11excellent
20002excellentexcellent11excellent
19003excellentexcellent11excellent
180017excellentexcellent11excellent
1700113moderately pollutedexcellent11excellent
16004excellentexcellent11excellent
15003excellentexcellent11excellent
140081lightly pollutedexcellent11excellent
130078lightly pollutedexcellent11excellent
12003excellentexcellent11excellent
11003excellentexcellent11excellent
100013excellentexcellent11excellent
09007excellentexcellent11excellent
08008excellentexcellent11excellent
070013excellentexcellent21excellent
060015excellentexcellent11excellent
050012excellentexcellent11excellent
040012excellentexcellent11excellent
03006excellentexcellent11excellent
02007excellentexcellent11excellent
01008excellentexcellent11excellent
00007excellentexcellent11excellent
230010excellentexcellent11excellent