Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
150095lightly pollutedexcellent11excellent
140069lightly pollutedexcellent11excellent
130015excellentexcellent11excellent
120098lightly pollutedexcellent11excellent
110045goodexcellent11excellent
100050goodexcellent11excellent
090091lightly pollutedexcellent11excellent
08009excellentexcellent11excellent
070023goodexcellent11excellent
06006excellentexcellent11excellent
05008excellentexcellent11excellent
040011excellentexcellent11excellent
03008excellentexcellent11excellent
020011excellentexcellent11excellent
010013excellentexcellent21excellent
00009excellentexcellent11excellent
23007excellentexcellent11excellent
22008excellentexcellent11excellent
21007excellentexcellent11excellent
200081lightly pollutedexcellent11excellent
19002excellentexcellent11excellent
18003excellentexcellent11excellent
170029goodexcellent11excellent
16005excellentexcellent11excellent