The Role of Some Enhancements on the Fate of Dursban Residues in Ecosystem Components

Abstract

This study dealt with tracking Dursban pesticide residues in a miniature ecosystem and studying the role of biological and chemical stimuli in removing Durspan pesticide residues from sandy clay soil. The study was on miniature ecosystems, namely bean plants grown in sandy clay soil. The results showed that the bean plant exceeded the permissible limits (μg/g0.3) and the concentration of residues in it was (μg/g18.42). The concentration of residues in the soil before treatment with stimulants was 25.07 μg/g), after treatment with the bio-stimulant the concentration of the residues became (13.16 μg/g), and after treatment with the chemical catalyst (11.66 μg/g). The results also showed that the role of biocatalysts was higher with a removal rate of 52.5%, and that of chemical catalysts was lower with a removal rate of 46.5%. The ratios between the two stimuli were very close and there were no significant differences between them.