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
010060lightly pollutedgood151excellent
000060lightly pollutedgood171excellent
230063moderately pollutedgood171excellent
220080moderately pollutedgood181excellent
210066moderately pollutedgood171excellent
200081moderately pollutedgood161excellent
190079moderately pollutedgood161excellent
180087heavily pollutedgood171excellent
170080moderately pollutedgood161excellent
160076moderately pollutedgood151excellent
150074moderately pollutedgood141excellent
140071moderately pollutedgood151excellent
130079moderately pollutedgood151excellent
1200100heavily pollutedgood181excellent
1100124severely pollutedgood241excellent
1000129severely pollutedgood241excellent
0900136severely pollutedgood251excellent
0800112heavily pollutedgood201excellent
0700104heavily pollutedgood201excellent
0600106heavily pollutedgood181excellent
0500105heavily pollutedgood181excellent
0400105heavily pollutedgood181excellent
030094heavily pollutedgood161excellent
020099heavily pollutedgood161excellent