Middelværdier og fraktiler for O3

Yearly statistics for O₃

Unit: µg/m³

O₃ 1997

Station

Average	Median (hour)	98-perc. (hour)	99.9-perc. (hour)	Max. 24 hours	Max. 8 hours^*)	Max. 1 hour
44	45	97	153	97	150	166
46	47	102	134	104	132	144
49	52	90	117	84	111	124
48	50	106	166	111	166	193
-	-	-	-	-	-	-

Threshold value

Average number of
exceedances per station

-	-	-	-	65	110	200
-	-	-	-	62	7	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 results are not available due to technical problems at the measuring site.

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 980312 K. Kemp

Yearly statistics for O3

O3 1997

Yearly statistics for O₃

O₃ 1997