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
140028goodexcellent61excellent
130028goodexcellent51excellent
120025goodexcellent41excellent
110021goodexcellent31excellent
100015goodexcellent21excellent
090012excellentexcellent21excellent
080011excellentexcellent11excellent
070010excellentexcellent11excellent
06008excellentexcellent11excellent
05009excellentexcellent21excellent
040011excellentexcellent21excellent
030013goodexcellent31excellent
020015goodexcellent31excellent
010016goodexcellent31excellent
000016goodexcellent31excellent
230017goodexcellent31excellent
220016goodexcellent31excellent
210019goodexcellent41excellent
200019goodexcellent41excellent
190020goodexcellent41excellent
180016goodexcellent31excellent
170010excellentexcellent21excellent
160011excellentexcellent21excellent
15009excellentexcellent11excellent