The influence of a capacitor plant in Serpukhov on vegetable contamination by polychlorinated biphenyls.

PCB content in soil and vegetables grown on the polluted soils in some districts of the town of Serpukhov have been studied for 10 years after the use of PCBs had been banned at the local capacitor plant. Soil contamination with PCBs in the vicinity of the plant is still extremely high (up to 30 mg/kg). Vegetables grown on the polluted soils, especially carrots and green parts of fennel, parsley, celery are also highly contaminated. The primary pollutants are found to be tri- and tetrachlorobiphenyls (up to 70-80% of total PCBs).