High concentrations of phosphate and silicate were measured in the surface waters of the southern Baltic Proper. The nitrogen components showed normal values in the whole investigated area. On the west coast, nutrients showed for the season normal values, with the exception of the Sound where phosphate and silicate were elevated. Oxygen levels in the deep waters of southeastern Skagerrak and southern Kattegat were below normal for the season. In the Baltic hydrogen sulphide was present in the Hanö Bight, Bornholm Basin and in the eastern and northern Gotland Basins.