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
0000122severely pollutedgood151excellent
2300142severely pollutedgood141excellent
2200120heavily pollutedgood161excellent
210095heavily pollutedgood181excellent
200094heavily pollutedgood161excellent
190089heavily pollutedgood151excellent
180072moderately pollutedgood131excellent
170065moderately pollutedgood131excellent
160059lightly pollutedexcellent121excellent
150051lightly pollutedexcellent111excellent
140048lightly pollutedexcellent101excellent
130039lightly pollutedexcellent81excellent
120037lightly pollutedexcellent71excellent
110036goodexcellent71excellent
100038lightly pollutedexcellent61excellent
090032goodexcellent71excellent
080036goodexcellent71excellent
070034goodexcellent71excellent
060032goodexcellent71excellent
050032goodexcellent61excellent
040033goodexcellent61excellent
030036goodexcellent81excellent
020037lightly pollutedexcellent91excellent
010045lightly pollutedexcellent101excellent