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
140019goodexcellent51excellent
130034goodexcellent51excellent
120023goodexcellent41excellent
110019goodexcellent41excellent
100017goodexcellent51excellent
090023goodexcellent51excellent
080016goodexcellent51excellent
070019goodexcellent61excellent
060027goodexcellent61excellent
050024goodexcellent61excellent
040027goodexcellent71excellent
030024goodexcellent71excellent
020017goodexcellent71excellent
010023goodexcellent81excellent
000029goodexcellent81excellent
230032goodexcellent71excellent
220025goodexcellent71excellent
210029goodexcellent61excellent
200024goodexcellent61excellent
190028goodexcellent71excellent
180034goodexcellent71excellent
170034goodexcellent81excellent
160036goodexcellent91excellent
150028goodexcellent71excellent