The accumulation of chlorinated hydrocarbons in selected organs of fresh-water fish after exposure to gamametox powder

Gas chromatography was used to determine lindan and methoxychloride residues in the muscle, brain and liver of selected fish species caught in Popielewo pond in Białystok province. The fish (Carassius carassius L, Cyprinus carpio L, Leucaspius delineatus Heckel) were exposed to an effective concentration of 0,5 ppm Gamametox Powder in water for 30 days. The experiment showed that the highest accumulation of lindan and methoxychlor was in the brain. In the brain of Cyprinus carpio the level was up to 2.41 ppm lindan. The level methoxychlor in livers was similar to the level of this pesticide in the brain, while the level of lindan in livers was considerably the lowest The lowest residues of lindan and methoxychlor accumulation were observed in muscle, where the levels were up to 0.0149 and 0.0351 ppm (Leucaspius delineatus and Cyprinus carpio). Organochlorine pesticide was detected in samples offish from Popielewo pond (control group), but this level was very low. Therefore, it is suggested that the natural environment (Popielewo pond) also contains low concentrations of organochlorine.