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
110015goodexcellent41excellent
100030goodexcellent51excellent
090035goodexcellent41excellent
080035goodexcellent31excellent
070032goodexcellent31excellent
060037lightly pollutedexcellent41excellent
050033goodexcellent51excellent
040029goodexcellent41excellent
030023goodexcellent41excellent
020023goodexcellent51excellent
010025goodexcellent41excellent
000017goodexcellent41excellent
230013goodexcellent21excellent
220010excellentexcellent11excellent
210014goodexcellent21excellent
200018goodexcellent41excellent
190023goodexcellent41excellent
180017goodexcellent21excellent
17006excellentexcellent11excellent
16006excellentexcellent11excellent
15007excellentexcellent11excellent
14008excellentexcellent21excellent
13009excellentexcellent11excellent
12004excellentexcellent11excellent