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
00007excellentexcellent11excellent
23007excellentexcellent11excellent
22009excellentexcellent11excellent
21007excellentexcellent11excellent
20005excellentexcellent11excellent
19005excellentexcellent11excellent
18005excellentexcellent11excellent
170010excellentexcellent11excellent
16005excellentexcellent11excellent
15005excellentexcellent11excellent
14005excellentexcellent11excellent
13003excellentexcellent11excellent
12005excellentexcellent11excellent
11005excellentexcellent11excellent
10006excellentexcellent11excellent
09007excellentexcellent21excellent
08008excellentexcellent21excellent
070010excellentexcellent21excellent
060016goodexcellent31excellent
050018goodexcellent31excellent
040018goodexcellent41excellent
030018goodexcellent41excellent
020019goodexcellent31excellent
010020goodexcellent41excellent