Maxima for NOx (episodes)

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

NO (hour)     1997

Traffic:
Copenhagen/1257
Odense/9155
Aalborg/8151
Urban backgr.:
Copenhagen/1259
Odense/9159
Aalborg/8159
Rural:
Ll. Valby/2090
Keldsnor/9055
Max. 3 hours
Day:hour
Max. hour
Day:hour
489
971124: 6
708
971124: 7
527
970110: 8
692
970110: 8
585
970108:14
729
970108:15
 
191
971202: 8
310
970106:19
166
970925: 6
258
970110: 8
259
971202: 8
559
971202: 9
 
236
970110:19
312
971124: 9
70
970116:21
75
970116:23


Unit: µg(NO2)/m3

NO2 (hour)     1997

Traffic:
Copenhagen/1257
Odense/9155
Aalborg/8151
Urban backgr.:
Copenhagen/1259
Odense/9159
Aalborg/8159
Rural:
Ll. Valby/2090
Keldsnor/9055
Max. 3 hours
Day:hour
Max. hour
Day:hour
124
970814:19
140
970814:19
134
970814:13
146
970814:16
125
970820: 7
137
970820: 7
 
95
970117: 6
128
970814:21
92
970115:15
126
970814: 8
99
970321: 6
130
971104: 2
 
85
970117: 5
89
970117: 5
94
970116:17
99
970116:18
Warning limit
 350   
   -   
   -   
   -   

The warning limit is a part of the national smog warning system.
With reference to the warning limit crirerias the lowest one hour value is identified for every consequtive three hour period. The highest of these one hour values are listed in the table in the column Max. 3 hour.

Overview of NOx


Updated 980721 K. Kemp