GAS-CHROMATOGRAPHIC DETERMINATION OF HALOGENATED ORGANIC-COMPOUNDS INWATER AND SEDIMENT IN THE SKAGERRAK

Biogenic and anthropogenic volatile halocarbons and chlorinated phenol ic compounds were monitored in the Skagerrak. Measurements were made b oth in water and in sediment by means of gas chromatography with elect ron-capture detection. The results show that the load of biogenic halo carbons exceeds that of the anthropogenic halocarbons and that the iod inated compounds show a more marked seasonal trend than the brominated compounds. Additionally, it was established that waters of different origins have exclusive sets of biogenic halocarbons. Pentachlorophenol is widely distributed throughout the Skagerrak. It is transported in its dissociated form. The concentration level of other chlorinated phe nolics is less than 1 ng/l. However, it could be demonstrated that the re is an accumulation of chlorinated phenolics in sediments in the dee per parts of the Skagerrak.