A method to quantify genotoxicity of malathion in rainbow trout using the weighted averaging.

DNA breakage has been frequently used as a biomarker of the pesticide toxicity. The present study introduced a method to quantify the DNA breakage in Oncorhynchus mykiss exposed to the pesticide malathion. Specimens were exposed to different concentrations of malathion for 1-9 days and their gill and liver were sampled.