PM 2.5
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]
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
19003excellentexcellent11excellent
18002excellentexcellent11excellent
17004excellentexcellent11excellent
16004excellentexcellent11excellent
15003excellentexcellent11excellent
14003excellentexcellent11excellent
13006excellentexcellent21excellent
120010excellentexcellent21excellent
110010excellentexcellent21excellent
100012excellentexcellent31excellent
090020goodexcellent51excellent
080022goodexcellent51excellent
070026goodexcellent51excellent
060022goodexcellent41excellent
050016goodexcellent31excellent
040014goodexcellent31excellent
030014goodexcellent31excellent
020014goodexcellent31excellent
010017goodexcellent31excellent
000011excellentexcellent21excellent
230011excellentexcellent21excellent
22009excellentexcellent11excellent
21007excellentexcellent11excellent
20003excellentexcellent11excellent