Related Experiment Video
Updated: Jul 3, 2026
Analysis of Organochlorine Pesticides in a Soil Sample by a Modified QuEChERS Approach Using Ammonium Formate
Published on: January 20, 2023
DDT and HCH isomer levels in soils, carrot root and carrot leaf samples
S M Waliszewski1, O Carvajal, S Gómez-Arroyo
1Institute of Forensic Medicine, University of Veracruz, SS Juan Pablo II s/n, 94290 Boca del Río, Veracruz, Mexico. swal@uv.mx
Abstract:
Agricultural cultivation assists organochlorine pesticide migration from contaminated soils to growing plants. This phenomenon is caused by retention processes that modify volatile pesticide exchange between soil, air and plants. The aim of the study was to monitor organochlorine pesticide (HCB, alpha- and gamma-HCH, pp'DDE, op'DDT, pp'DDT) levels and compare these concentrations in soil, carrot roots and carrot leaves. Fifty soil samples, 50 carrot root and 50 carrot leaf samples were taken from the same fields and analyzed by GLC-ECD. The results reveal organochlorine pesticide diffusion from agricultural soils to growing carrot plants and their vapors adsorption by leaves. Within the carrot plant, organochlorine pesticides accumulate especially in carrot root peel, 3-7 times more than in root flesh.
