Influence of individual and mix heavy metal (Cu, Cd) and detergent (LAS) on Daphnia magna

Abstract

In this study, the individual and mixed impacts of heavy metals (cu, cd) and detergent (LAS) on Daphnia magna. Pollutants acute toxicity (OECD) determination tests were done individually and mixedly on Daphnia, with 5 treatments, on witness and three results were Concentrations limits were determined logarithmically. At last, the achieved results were calculated with probit Analysis and the Coefficient of correlation and EC (10, 50, and 90) of the pollutants were determined individually and mixedly. The achieved results of Daphnia magna acute toxicity determination tests and the amounts of EC (10,50,90) resulted from individual impacts of heavy metals (Cu,Cd) and detergent (LAS) and (LAS +Cd) mixture and (LAS + Cu) mixture ranged as: Cd (0.14 – 0.26 – 0.05) , Cu (0.007 – 0,03 – 0,13) , LAS (1,7.8,60.6) , LAS + Cd (0.029 – 0.066 – 0.14) , LAS+Cu (0.003-0.016-0.077) and the achieved permissible limits were 0.026,0.003,0.78,0.006 and 0.0016 Mg/L with the coefficients of correlation ranged as: 88,68,84and 95 percent.