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
080017goodexcellent21excellent
070015goodexcellent21excellent
060011excellentexcellent31excellent
050017goodexcellent11excellent
040016goodexcellent21excellent
030025goodexcellent21excellent
020013goodexcellent21excellent
010011excellentexcellent21excellent
000016goodexcellent21excellent
230018goodexcellent21excellent
220020goodexcellent21excellent
210011excellentexcellent11excellent
20005excellentexcellent11excellent
19003excellentexcellent11excellent
18002excellentexcellent11excellent
17004excellentexcellent11excellent
16004excellentexcellent11excellent
15003excellentexcellent11excellent
14003excellentexcellent11excellent
13006excellentexcellent21excellent
120010excellentexcellent21excellent
110010excellentexcellent21excellent
100012excellentexcellent31excellent
090020goodexcellent51excellent