Serum Concentrations of Organochlorine Pesticides in Non-Vocationally Exposed Population of Harbin City, China

Abstract

This work reports the method for determining organochlorine pesticides in human serum and evaluate the accumulation level of organochlorine pesticides in non-vocationally exposed residents lived at Harbin city, P.R. China. The blood samples were treated with ultrasonic, purified by C₁₈ solid phase extraction column and tested with the capillary columns gas chromatograph equipped with ECD detector. The recovery of ten kinds of organochlorine pesticides in human serum were 84.2-92.1 %. The relative standard deviation of the method was 2.61-14.4 %, linearity range at 0.2-50.0 μg/L. The range of detection limit were 0.02-0.05 ng/ mL and the correlation coefficient were r > 0.999. Of the 220 people investigated, 60 % were detected with different serum levels of organochlorine pesticides (range: 0.012-32.107 μg/L). The detection rate was 58.1 and 61.7 % in male and female, respectively. The serum level of accumulated organochlorine pesticides of non-vocationally exposed residents in Harbin were higher in female than that in male. However, both of them are in lower level of accumulated organochlorine pesticides.