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
030033goodexcellent41excellent
020028goodexcellent41excellent
010040goodexcellent51excellent
000040goodexcellent51excellent
230032goodexcellent31excellent
220028goodexcellent31excellent
210029goodexcellent31excellent
200025goodexcellent31excellent
190026goodexcellent31excellent
180021goodexcellent31excellent
170027goodexcellent51excellent
160036goodexcellent51excellent
150032goodexcellent41excellent
140031goodexcellent51excellent
130026goodexcellent41excellent
120024goodexcellent32excellent
11007excellentexcellent11excellent
10005excellentexcellent11excellent
090014excellentexcellent11excellent
08005excellentexcellent11excellent
07006excellentexcellent11excellent
060017excellentexcellent21excellent
050013excellentexcellent11excellent
04008excellentexcellent11excellent