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
020019goodexcellent31excellent
010020goodexcellent41excellent
000022goodexcellent41excellent
230017goodexcellent41excellent
220017goodexcellent31excellent
210015goodexcellent31excellent
200012excellentexcellent31excellent
190013goodexcellent31excellent
180011excellentexcellent21excellent
170010excellentexcellent21excellent
16009excellentexcellent21excellent
15007excellentexcellent11excellent
140011excellentexcellent21excellent
130014goodexcellent31excellent
12008excellentexcellent11excellent
110018goodexcellent41excellent
100026goodexcellent61excellent
090030goodexcellent71excellent
080033goodexcellent71excellent
070028goodexcellent61excellent
060027goodexcellent61excellent
050026goodexcellent51excellent
040025goodexcellent51excellent
030029goodexcellent51excellent