Middelværdier og fraktiler for O3

Yearly statistics for O3

Unit: µg/m3

O3     1994
Station
 
Copenhagen/1259
Odense/9159
Aalborg/8159
Ll. Valby/2090
Average
 
Median
(hour)
98-perc.
(hour)
99.9-perc.
(hour)
Max. 24
hours
Max. 8
hours*)
Max. 1
hour
51
50
119
169
124
166
178
50
50
118
172
126
169
189
52
53
108
144
106
134
162
57
58
124
184
129
184
197
Threshold value
Average number of
exceedances per station
     -    
     -    
     -    
    -    
  65  
 110  
 200  
     -    
     -    
-
     -    
101
23
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 970526 K. Kemp