Middelværdier og fraktiler for O3

Yearly statistics for O3

Unit: µg/m3

O3     1996

Station
 
Copenhagen/1259
Odense/9159
Aalborg/8159
Ll. Valby/2090
Keldsnor/9055
Average
 
Median
(hour)
98-perc.
(hour)
99.9-perc.
(hour)
Max. 24
hours
Max. 8
hours*)
Max. 1
hour
47
47
105
144
117
137
167
44
45
104
146
122
147
166
53
55
104
149
93
134
157
50
50
105
144
104
132
151
58
59
113
148
120
141
175
Threshold value
Average number of
exceedances per station
     -    
     -    
     -    
    -    
  65  
 110  
 200  
     -    
     -    
     -    
     -    
84
12
0.0
*) The eight hour values are calculated in accordance with the EEC directive (92/72/EEC), as a non-overlapping moving average; they are calculated four times a day from the eight hourly values between 0.00 and 9.00, 8.00 and 17.00, 16.00 and 1.00, 12.00 and 21.00.

The threshold values are implemented in Denmark by Regulation nr. 184 of 11. March 1994 issued by the ministry of Environment..


Overview of O3

Updated 970723 K. Kemp