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
210021goodexcellent51excellent
200013excellentexcellent11excellent
190012excellentexcellent11excellent
18008excellentexcellent11excellent
17006excellentexcellent11excellent
16006excellentexcellent11excellent
15007excellentexcellent11excellent
14006excellentexcellent11excellent
13008excellentexcellent21excellent
120010excellentexcellent21excellent
110011excellentexcellent21excellent
100015excellentexcellent31excellent
090024goodexcellent41excellent
080034goodexcellent51excellent
070041goodexcellent51excellent
060041goodexcellent51excellent
050031goodexcellent51excellent
040046goodexcellent41excellent
030025goodexcellent41excellent
020027goodexcellent51excellent
010024goodexcellent41excellent
000031goodexcellent41excellent
230043goodexcellent61excellent
220039goodexcellent51excellent