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
090020goodexcellent41excellent
080016goodexcellent31excellent
070014goodexcellent31excellent
060013goodexcellent31excellent
050013goodexcellent21excellent
040015goodexcellent31excellent
030015goodexcellent31excellent
020031goodexcellent71excellent
010037lightly pollutedexcellent71excellent
000035goodexcellent61excellent
230032goodexcellent51excellent
220028goodexcellent61excellent
210030goodexcellent61excellent
200032goodexcellent61excellent
190030goodexcellent51excellent
180034goodexcellent51excellent
170028goodexcellent51excellent
160023goodexcellent51excellent
150019goodexcellent51excellent
140023goodexcellent51excellent
130019goodexcellent51excellent
120025goodexcellent61excellent
110025goodexcellent61excellent
100027goodexcellent61excellent