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
100023goodexcellent31excellent
090026goodexcellent31excellent
080024goodexcellent21excellent
070021goodexcellent21excellent
060018goodexcellent21excellent
050034goodexcellent51excellent
040036goodexcellent51excellent
030030goodexcellent41excellent
020025goodexcellent31excellent
010023goodexcellent31excellent
000022goodexcellent21excellent
230026goodexcellent31excellent
220030goodexcellent41excellent
210027goodexcellent31excellent
200025goodexcellent31excellent
190018goodexcellent21excellent
180014goodexcellent21excellent
170013goodexcellent21excellent
160014goodexcellent21excellent
150017goodexcellent21excellent
140014goodexcellent31excellent
130016goodexcellent31excellent
120017goodexcellent31excellent
110016goodexcellent31excellent