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
16009excellentexcellent21excellent
150010excellentexcellent21excellent
140018goodexcellent21excellent
130016goodexcellent21excellent
120015goodexcellent31excellent
110018goodexcellent41excellent
100020goodexcellent41excellent
090022goodexcellent41excellent
080025goodexcellent41excellent
070025goodexcellent41excellent
060026goodexcellent31excellent
050026goodexcellent31excellent
040025goodexcellent31excellent
030019goodexcellent21excellent
020017goodexcellent21excellent
010016goodexcellent11excellent
000013goodexcellent11excellent
230011excellentexcellent11excellent
22009excellentexcellent11excellent
21007excellentexcellent11excellent
20007excellentexcellent11excellent
19007excellentexcellent11excellent
18007excellentexcellent11excellent
17007excellentexcellent11excellent