Toxicity evaluation and degradation of cypermethrin-contaminated soil using biochar and Bacillus cereus amendments.

Cypermethrin (Cyp), a persistent synthetic pyrethroid insecticide widely used for insect control. The persistence of Cyp creates toxicity to both humans and the environment This study investigates biochar and Bacillus cereus distinct and collective effects on Cyp -contaminated soil during a 90-day incubation. This study also investigates the effects of different concentrations of Cyp (50, 100, ,500 to 1000 mg kg) on soil physicochemical and biological activities during a 90-day incubation period.