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
160016goodexcellent41excellent
150013goodexcellent31excellent
140014goodexcellent31excellent
130016goodexcellent31excellent
120018goodexcellent31excellent
110019goodexcellent41excellent
100026goodexcellent51excellent
090040lightly pollutedexcellent81excellent
080044lightly pollutedexcellent81excellent
070040lightly pollutedexcellent81excellent
060037lightly pollutedexcellent71excellent
050038lightly pollutedexcellent61excellent
040040lightly pollutedexcellent61excellent
030037lightly pollutedexcellent61excellent
020041lightly pollutedexcellent61excellent
010047lightly pollutedexcellent61excellent
000056lightly pollutedexcellent51excellent
230058lightly pollutedexcellent51excellent
220072moderately pollutedexcellent61excellent
210040lightly pollutedexcellent51excellent
200027goodexcellent51excellent
190026goodexcellent41excellent
180026goodexcellent41excellent
170020goodexcellent41excellent