Validation
Scatterplots
Choose compound
Ozone
Ammonium
Sulphur dioxide
Nitrogen dioxide
Ammonia+Ammonium
Choose season
Winter
Spring
Summer
Autumn
Year
Choose year
1989
1990
1991
1992
1993
1994
1995
Short time series containing the daily maximum ozone concentration
Choose station
Ulborg
Frederiksborg
Choose month
January
February
March
April
May
June
July
August
September
October
November
December
Choose year
1993
1994
Long time series containing the monthly mean ozone concentration
Choose station
Frederiksborg
Westerland
Langenbrugge
Deuselbach