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
100092lightly pollutedexcellent161excellent
0900130moderately pollutedexcellent171excellent
0800119moderately pollutedexcellent161excellent
0700126moderately pollutedexcellent161excellent
0600134moderately pollutedexcellent151excellent
0500113moderately pollutedexcellent161excellent
0400136moderately pollutedexcellent171excellent
0300121moderately pollutedexcellent181excellent
0200136moderately pollutedexcellent201excellent
0100130moderately pollutedexcellent191excellent
0000133moderately pollutedexcellent201excellent
2300125moderately pollutedexcellent191excellent
2200100lightly pollutedexcellent181excellent
2100109moderately pollutedexcellent191excellent
200089lightly pollutedexcellent181excellent
1900108moderately pollutedexcellent191excellent
1800106moderately pollutedexcellent181excellent
1700104moderately pollutedexcellent191excellent
160092lightly pollutedexcellent181excellent
150067lightly pollutedexcellent191excellent
140091lightly pollutedexcellent181excellent
130094lightly pollutedexcellent181excellent
120074lightly pollutedexcellent171excellent
110076lightly pollutedexcellent151excellent