Screening of chromosomal aberrations and sister chromatid exchanges in peripheral lymphocytes of vegetable garden workers.

1. Twenty-five male workers occupationally exposed to DDT, BHC malathion, parathion, dimethoate, fenitrothion, urea and gromor were selected as subjects for the analysis of chromosomal aberrations and sister chromatid exchanges (SCE) in peripheral lymphocytes. 2. Blood samples were collected from 30 normal healthy males from the same age group and socioeconomic class for the control. 3. The frequency of chromosomal aberrations and SCEs increased significantly irrespective of the duration of exposure to pesticides, when compared to controls.