Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
09005excellentexcellent11excellent
08008excellentexcellent11excellent
070013excellentexcellent21excellent
060015excellentexcellent11excellent
050012excellentexcellent11excellent
040012excellentexcellent11excellent
03006excellentexcellent11excellent
02007excellentexcellent11excellent
01008excellentexcellent11excellent
00007excellentexcellent11excellent
230010excellentexcellent11excellent
22005excellentexcellent11excellent
21004excellentexcellent11excellent
20005excellentexcellent11excellent
19005excellentexcellent11excellent
180078lightly pollutedexcellent11excellent
17008excellentexcellent11excellent
16003excellentexcellent11excellent
150090lightly pollutedexcellent11excellent
140077lightly pollutedexcellent11excellent
13007excellentexcellent11excellent
12006excellentexcellent11excellent
11009excellentexcellent11excellent
10009excellentexcellent11excellent