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
230017goodexcellent21excellent
220012excellentexcellent21excellent
21007excellentexcellent11excellent
20006excellentexcellent11excellent
19006excellentexcellent11excellent
18004excellentexcellent11excellent
170010excellentexcellent11excellent
16007excellentexcellent11excellent
150011excellentexcellent21excellent
140020goodexcellent21excellent
130074moderately pollutedexcellent21excellent
120024goodexcellent21excellent
110040lightly pollutedexcellent11excellent
100012excellentexcellent11excellent
09007excellentexcellent11excellent
08006excellentexcellent11excellent
07008excellentexcellent11excellent
06007excellentexcellent11excellent
05008excellentexcellent11excellent
04007excellentexcellent11excellent
03008excellentexcellent21excellent
020010excellentexcellent21excellent
01009excellentexcellent11excellent
000011excellentexcellent11excellent