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
210050lightly pollutedexcellent11excellent
20006excellentexcellent11excellent
19005excellentexcellent11excellent
18004excellentexcellent11excellent
17005excellentexcellent11excellent
16004excellentexcellent11excellent
150017goodexcellent11excellent
14004excellentexcellent11excellent
130011excellentexcellent11excellent
12005excellentexcellent11excellent
110011excellentexcellent11excellent
100054lightly pollutedexcellent11excellent
09008excellentexcellent11excellent
08008excellentexcellent21excellent
07008excellentexcellent21excellent
060011excellentexcellent21excellent
050013goodexcellent31excellent
040017goodexcellent31excellent
030018goodexcellent31excellent
020018goodexcellent21excellent
010019goodexcellent31excellent
000025goodexcellent51excellent
230018goodexcellent81excellent
220011excellentexcellent41excellent