Home – Home – Jornals – Chemistry for Sustainable Development 2007 number 1

In the samples of bottom sediments of the Gulf of Finland in its eastern part, 43 organic compounds containing sulphur were identified and estimated quantitatively by means of gas chromatography - mass spectrometry. It is shown that polysulphides are widespread in the bottom sediments of the investigated part of the Gulf of Finland. An increase in the concentrations of sulphur-containing compounds with an increase in the salt content of water and with an increase in the depth of the gulf from the east to the west was detected. The high concentration of sulphur-containing organic compounds in bottom sediments in the region from the west edge of the island of Kotlin to 28 degrees of eastern longitude provides evidence that there exist the conditions for the formation of hydrogen sulphide zones stable in this region.