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
21007excellentexcellent11excellent
20003excellentexcellent11excellent
19002excellentexcellent11excellent
18002excellentexcellent11excellent
17002excellentexcellent11excellent
16002excellentexcellent11excellent
15002excellentexcellent11excellent
14002excellentexcellent11excellent
13003excellentexcellent11excellent
12003excellentexcellent11excellent
11005excellentexcellent11excellent
10006excellentexcellent21excellent
090014goodexcellent31excellent
080017goodexcellent31excellent
070015goodexcellent21excellent
060011excellentexcellent31excellent
050017goodexcellent11excellent
040016goodexcellent21excellent
030025goodexcellent21excellent
020013goodexcellent21excellent
010011excellentexcellent21excellent
000016goodexcellent21excellent
230018goodexcellent21excellent
220020goodexcellent21excellent