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
220065lightly pollutedexcellent81excellent
210064lightly pollutedexcellent81excellent
200051goodexcellent51excellent
190029goodexcellent41excellent
180031goodexcellent41excellent
170025goodexcellent41excellent
160030goodexcellent51excellent
150022goodexcellent41excellent
140024goodexcellent32excellent
130026goodexcellent41excellent
120029goodexcellent51excellent
110033goodexcellent51excellent
100042goodexcellent61excellent
090068lightly pollutedexcellent101excellent
080080lightly pollutedexcellent111excellent
070069lightly pollutedexcellent101excellent
060061lightly pollutedexcellent101excellent
050068lightly pollutedexcellent91excellent
040069lightly pollutedexcellent91excellent
030066lightly pollutedexcellent91excellent
020071lightly pollutedexcellent81excellent
010083lightly pollutedexcellent91excellent
000095lightly pollutedexcellent71excellent
230095lightly pollutedexcellent71excellent