Toxicity of imidazolium chlorides to aquatic organisms

The toxicity of 5 new cationic surface active substances (CSAS) - imidazolium chlorides against freshwater organisms - was evaluated. Tests were conducted with the green algae Scenedesmus quadricauda, the fish Lebistes reticulatus and the crustacean Daphnia magna. European Classification was used for the evaluation of adverse effects of investigated preparations. Two of them were classified as very toxic, the others were toxic. For genotoxic effect evaluation Bacillus subtilis rec-assay was performed. It was shown that none of the examined surfactants possessed genototoxic properties.