[Dieldrin, aldrin, endrin, isodrin, endosulfan 1 and 2 on fish in the Gulf of Gdańsk].

The residues of dieldrin, aldrin, endrin, isodrin, endosulfan 1 and 2 has been determined in a several species of fish caught in the Gulf of Gdańsk in 1992. The method of measurement was capillary gas chromatograph and low resolution mass spectrometry (HRGC/LRMS) after a nondestructive extraction and clean-up step with a further fractionation of the extract on Florisil column. Apart from dieldrin no other cyclodiene pesticides studied were found in fishes in detectable amounts, and for dieldrin concentrations ranged from 0.84 to 6.6 ng/g wet weight.