Maxima for NOx (episodes)

The stations are sorted according to type of site.
Unit: µg(NO)/m3

NO (hour)     2004
Traffic:
Copenhagen/1257
Copenhagen/1103
Århus/6153
Odense/9155
Aalborg/8151
Urban backgr.:
Copenhagen/1259
Århus/6159
Odense/9159
Aalborg/8159
Rural:
Ll. Valby/2090
Keldsnor/9055
Max. 3 hours
Day:hour
Max. hour
Day:hour
408
041108: 7
792
041108: 7
666
041108: 6
832
041108: 7
340
040115: 7
628
040115: 8
396
041001: 5
704
041001: 7
363
040115: 8
398
041109:15
 
93
041117: 8
180
040413: 6
259
040127: 8
609
040115: 9
133
040127: 7
218
041001: 7
266
040115: 6
369
040115: 9
 
45
040115:16
112
041220:11
23
040421:10
34
040318:13


Unit: µg(NO2)/m3

NO2 (hour)     2004
Traffic:
Copenhagen/1257
Copenhagen/1103
Århus/6153
Odense/9155
Aalborg/8151
Urban backgr.:
Copenhagen/1259
Århus/6159
Odense/9159
Aalborg/8159
Rural:
Ll. Valby/2090
Keldsnor/9055
Max. 3 hours
Day:hour
Max. hour
Day:hour
168
040904: 0
185
040904: 2
164
040411: 1
188
041108: 7
128
040510:19
195
040115: 8
122
040510:13
142
040416: 7
116
041220: 6
162
040810: 6
 
85
040330:21
93
040330:22
100
040130: 8
156
040115: 9
68
041109: 7
79
040129: 8
107
040115: 5
133
040115: 6
 
54
041126: 6
66
040416: 7
58
040505: 7
77
040503:19
Alert threshold
 400   
   -   
   -   
   -   

The Alert threshold is given in EU Council Directive 1999/30/EC of 22 April 1999 (Official Journal of the European Communities - L163/41).
With reference to the definition of the alert threshold, the lowest one hour values are calculated for all consecutive three hour periods.
The highest of these one hour values are listed in the table in the column Max. 3 hour.

Overview of NOx

Updated 050323 K. Kemp