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
01005excellentexcellent11excellent
00003excellentexcellent11excellent
23003excellentexcellent11excellent
22002excellentexcellent11excellent
21002excellentexcellent11excellent
20002excellentexcellent11excellent
19002excellentexcellent11excellent
180038lightly pollutedexcellent11excellent
1700104heavily pollutedexcellent11excellent
16003excellentexcellent11excellent
15002excellentexcellent11excellent
140055lightly pollutedexcellent11excellent
130052lightly pollutedexcellent11excellent
12002excellentexcellent11excellent
11002excellentexcellent11excellent
100019goodexcellent11excellent
09003excellentexcellent11excellent
08006excellentexcellent11excellent
07008excellentexcellent11excellent
06008excellentexcellent11excellent
05006excellentexcellent11excellent
04007excellentexcellent11excellent
03003excellentexcellent11excellent
02005excellentexcellent11excellent