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
11003excellentexcellent11excellent
10004excellentexcellent11excellent
09004excellentexcellent11excellent
08006excellentexcellent21excellent
07009excellentexcellent21excellent
06009excellentexcellent31excellent
050016goodexcellent31excellent
040017goodexcellent41excellent
030016goodexcellent31excellent
020013goodexcellent31excellent
010014goodexcellent31excellent
000015goodexcellent31excellent
230011excellentexcellent21excellent
220010excellentexcellent21excellent
21005excellentexcellent11excellent
20003excellentexcellent11excellent
19004excellentexcellent11excellent
18003excellentexcellent11excellent
17002excellentexcellent11excellent
16003excellentexcellent11excellent
15002excellentexcellent11excellent
14003excellentexcellent11excellent
13006excellentexcellent11excellent
12004excellentexcellent11excellent