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
05007excellentexcellent11excellent
04007excellentexcellent11excellent
03007excellentexcellent11excellent
02007excellentexcellent21excellent
01009excellentexcellent21excellent
000014goodexcellent31excellent
230024goodexcellent51excellent
220034goodexcellent61excellent
210023goodexcellent41excellent
200013goodexcellent21excellent
190011excellentexcellent21excellent
18009excellentexcellent11excellent
170011excellentexcellent11excellent
160010excellentexcellent11excellent
150015goodexcellent21excellent
140020goodexcellent31excellent
130017goodexcellent21excellent
120021goodexcellent31excellent
110020goodexcellent31excellent
100023goodexcellent31excellent
090026goodexcellent31excellent
080024goodexcellent21excellent
070021goodexcellent21excellent
060018goodexcellent21excellent