Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
180042goodexcellent61excellent
170035goodexcellent51excellent
160043goodexcellent61excellent
150051goodexcellent81excellent
140056goodexcellent81excellent
130065lightly pollutedexcellent81excellent
120055goodexcellent71excellent
110055goodexcellent71excellent
100051goodexcellent71excellent
090056goodexcellent61excellent
080067lightly pollutedexcellent81excellent
070064lightly pollutedexcellent71excellent
060063lightly pollutedexcellent71excellent
050053goodexcellent61excellent
040059goodexcellent71excellent
030066lightly pollutedexcellent71excellent
020054goodexcellent61excellent
010051goodexcellent51excellent
000044goodexcellent51excellent
230053goodexcellent61excellent
220065lightly pollutedexcellent81excellent
210059goodexcellent71excellent
200064lightly pollutedexcellent91excellent
190078lightly pollutedexcellent121excellent