The lethal effect of detergent on Microcyclops sp.

The lethal effect of detergent on Microcyclops sp.

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Microcyclops sp.was exposed to selected detergents (two dishwasher detergents, one washing-powder, one washing-machine powder and one shampoo) for 24 hours.The results indicated the dishwasher powder had higher lethal effect Vitamin B on Microcyclops sp.

than the other examined detergents, especially one containing 17% Linear Alkyl Benzene Sulfonate, 5% Di-Ethanolamine and 2% Lauric Acid.The permissible concentration and the LC50 for the dishwasher powder is 7.84 and 13.

32 mg/l respectively.Among the powders the washing-machine powder appeared to be Tables least lethal (LC50 = 43.87 mg/l) and the shampoo with LC50 of 47.

27 mg/l had the lowest lethal effect on Microcyclops sp.Correlation rate of the detergent concentration logarithm and the mortality of Microcyclops sp.ranged between 94-98%.