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
200020goodexcellent4⇨1excellent
190018goodexcellent4⇨1excellent
180015goodexcellent4⇨1excellent
170011excellentexcellent4⇨1excellent
160012excellentexcellent4⇨1excellent
150013goodexcellent4⇨1excellent
140014goodexcellent5⇨1excellent
130019goodexcellent5⇨1excellent
120013goodexcellent5⇨1excellent
110018goodexcellent5⇨1excellent
100016goodexcellent4⇨1excellent
090015goodexcellent5⇨1excellent
080018goodexcellent5⇨1excellent
070015goodexcellent5⇨1excellent
060016goodexcellent5⇨1excellent
050021goodexcellent5⇨1excellent
040020goodexcellent5⇨1excellent
030015goodexcellent5⇨1excellent
020015goodexcellent5⇨1excellent
010016goodexcellent5⇨1excellent
000019goodexcellent6⇨1excellent
230020goodexcellent5⇨1excellent
220018goodexcellent5⇨1excellent
210022goodexcellent7⇨1excellent