PM 2.5
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]
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
11004excellentexcellent11excellent
10006excellentexcellent11excellent
09007excellentexcellent21excellent
08008excellentexcellent21excellent
070010excellentexcellent21excellent
060016goodexcellent31excellent
050018goodexcellent31excellent
040018goodexcellent41excellent
030018goodexcellent41excellent
020019goodexcellent31excellent
010020goodexcellent41excellent
000022goodexcellent41excellent
230017goodexcellent41excellent
220017goodexcellent31excellent
210015goodexcellent31excellent
200012excellentexcellent31excellent
190013goodexcellent31excellent
180011excellentexcellent21excellent
170010excellentexcellent21excellent
16009excellentexcellent21excellent
15007excellentexcellent11excellent
140011excellentexcellent21excellent
130014goodexcellent31excellent
12008excellentexcellent11excellent