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
0500112moderately pollutedexcellent141excellent
0400103moderately pollutedexcellent111excellent
0300106moderately pollutedexcellent141excellent
0200126moderately pollutedexcellent131excellent
0100130moderately pollutedexcellent121excellent
0000122moderately pollutedexcellent121excellent
2300107moderately pollutedexcellent111excellent
220092lightly pollutedexcellent111excellent
210080lightly pollutedexcellent91excellent
200055goodexcellent51excellent
190031goodexcellent21excellent
180021goodexcellent31excellent
170013excellentexcellent11excellent
160012excellentexcellent21excellent
150019excellentexcellent21excellent
140026goodexcellent31excellent
130016excellentexcellent11excellent
12009excellentexcellent11excellent
110011excellentexcellent21excellent
100025goodexcellent31excellent
090053goodexcellent71excellent
080065lightly pollutedexcellent111excellent
070062lightly pollutedexcellent71excellent
060049goodexcellent51excellent