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
110020excellentexcellent21excellent
100015excellentexcellent21excellent
090015excellentexcellent21excellent
080016excellentexcellent21excellent
070015excellentexcellent21excellent
060017excellentexcellent21excellent
050012excellentexcellent21excellent
040013excellentexcellent11excellent
030012excellentexcellent11excellent
020011excellentexcellent11excellent
01009excellentexcellent11excellent
00005excellentexcellent11excellent
230010excellentexcellent11excellent
22006excellentexcellent21excellent
210081lightly pollutedexcellent11excellent
20006excellentexcellent11excellent
19005excellentexcellent11excellent
18008excellentexcellent11excellent
170065lightly pollutedexcellent11excellent
160052goodexcellent11excellent
150095lightly pollutedexcellent11excellent
140069lightly pollutedexcellent11excellent
130015excellentexcellent11excellent
120098lightly pollutedexcellent11excellent