Dissipation, decontamination, dietary, and ecological risk assessment of chlorantraniliprole in chilli fields

Abstract

For quantification of the insecticide chlorantraniliprole in chilli and soil, an optimized gas chromatographic-mass spectrometric method is presented, with recoveries of 92–96%, and relative standard deviations of 1.4–2.7%. The limit of quantification is 0.01 mg/kg. Degradation of chlorantraniliprole follows first-order kinetics with half-lives between 1.6 and 1.8 days for chilli and soil. For earthworms and arthropods in the chilli field, the calculated risk quotient is found to be <1, as well as for consumers of chilli just after application of chlorantraniliprole. Residue concentrations in chilli fruit can be further reduced by 6–63% using different decontamination methods.

Keywords:

• GC-MS
• chlorantraniliprole
• chilli
• dissipation
• risk assessment; decontamination, soil

Acknowledgments

The authors are grateful to Department of Agricultural Entomology, Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Coimbatore, India for providing infrastructural facilities.

Disclosure statement

No potential conflict of interest was reported by the author(s).