Studies on contamination of vegetable drugs with halogen derivative pesticides. Part 2: Concentrations of halogen derivative pesticides in vegetable blends and herbal granulated products produced in Poland in 1980-1984.

ABSTRACT

Changes in concentration levels of halogen derivative pesticides (p,p'-DDT and its metabolites p,p'-DD and p,p'-DDE, as well as HCH, DMDT, aldrin, dieldrin) in vegetable blends and granulated products produced in Poland were studied in the period 1980-1984. By means of GLC and TLC methods it has been found, that as in the case of raw materials, contamination levels of these materials increased from 1980 up to the maximum values for vegetable blends in 1982 and in granulated products in 1983. Generally, concentration levels in vegetable blends and in raw material were similar over the same periods of time, whereas concentrations in granulated products were considerable lower.