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
090025goodexcellent51excellent
080029goodexcellent61excellent
070033goodexcellent51excellent
060027goodexcellent41excellent
050028goodexcellent41excellent
040025goodexcellent41excellent
030028goodexcellent41excellent
020030goodexcellent41excellent
010032goodexcellent41excellent
000026goodexcellent41excellent
230021goodexcellent41excellent
220020goodexcellent41excellent
210021goodexcellent41excellent
200015goodexcellent31excellent
190010excellentexcellent21excellent
18007excellentexcellent11excellent
17005excellentexcellent11excellent
16006excellentexcellent11excellent
15006excellentexcellent21excellent
140010excellentexcellent21excellent
130010excellentexcellent31excellent
120012excellentexcellent41excellent
110017goodexcellent51excellent
100028goodexcellent71excellent