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
180011excellentexcellent41excellent
170014goodexcellent41excellent
160020goodexcellent51excellent
150020goodexcellent51excellent
140015goodexcellent51excellent
130022goodexcellent41excellent
120023goodexcellent41excellent
110036goodexcellent41excellent
100019goodexcellent31excellent
090014goodexcellent31excellent
080013goodexcellent31excellent
070012excellentexcellent31excellent
060010excellentexcellent31excellent
050010excellentexcellent31excellent
040013goodexcellent31excellent
030016goodexcellent31excellent
020019goodexcellent41excellent
010016goodexcellent41excellent
000015goodexcellent41excellent
230017goodexcellent41excellent
220017goodexcellent41excellent
210021goodexcellent51excellent
200015goodexcellent51excellent
190012excellentexcellent51excellent