Determination of LC50 of Diazinon toxin and linear anionic detergents on Rutilus frisii kutum

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Tehranifard A., Fazeli M., Yarabbi J.

10th International Conference on Modelling, Monitoring and Management of Water Pollution, Bucharest, Romania, 9 - 11 June 2010, vol.135, pp.207-209 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 135
  • Doi Number: 10.2495/wp100181
  • City: Bucharest
  • Country: Romania
  • Page Numbers: pp.207-209
  • Çukurova University Affiliated: No


Diazinon is a pesticide that is commonly used in the rice fields of northern Iran The harmful effect of Diazinon and two anionic detergents were determined on Rutilus frisu kutum, individually and together on a laboratory scale Fish were adapted to laboratory circumstances, distributed species wise in 500 litre tanks Experiments were performed according to the TCR standard procedures The LC50- 96 h was 0 34 mg/l for Diazinon The LC50- 96 h in same species fingerlings were 4 69 and 12 24 mg/l under liquid and powder detergents, respectively The LC50- 96 h were 7 27 and 0 9 mg/l for a mixture of Diazinon and liquid detergent and a mixture of Diazinon and powder detergent, respectively The result showed that the toxicity of the mixture of Diazinon and powder detergent was greater than other mixtures Generally, the detergent concentration toxicity rate (LC50- 96 h) in the ecosystem is less than the laboratory scale, but detergent can mix with some chemicals in the ecosystem and become stronger The mortality rate will increase under this condition