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
190012excellentexcellent11excellent
18009excellentexcellent11excellent
17009excellentexcellent21excellent
160022goodexcellent21excellent
150021goodexcellent21excellent
140017excellentexcellent21excellent
130013excellentexcellent21excellent
120010excellentexcellent11excellent
11007excellentexcellent11excellent
100012excellentexcellent21excellent
090016excellentexcellent31excellent
080024goodexcellent21excellent
070017excellentexcellent21excellent
060015excellentexcellent21excellent
050012excellentexcellent21excellent
040012excellentexcellent11excellent
030010excellentexcellent11excellent
020010excellentexcellent11excellent
01009excellentexcellent11excellent
00007excellentexcellent11excellent
23007excellentexcellent11excellent
22006excellentexcellent11excellent
21005excellentexcellent11excellent
20004excellentexcellent11excellent