Middelværdier og fraktiler for O3

Yearly statistics for O3

Unit: µg/m3

O3     1995
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
46
46
105
185
128
183
197
48
48
106
177
149
182
201
52
54
104
155
134
147
181
52
53
110
183
130
186
202
63
65
109
159
124
146
173
Threshold value
Average number of
exceedances per station
     -    
     -    
     -    
    -    
  65  
 110  
 200  
-
     -    
     -    
     -    
91
11
0.4
*) 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 970514 K. Kemp