Organochlorine pesticides and NDL-PCBs in wild boars from flatland region with intensive agricultural activities

The objective of this study was to analyse the content of OHCs and NDL-PCBs in wild boar population living in densely populated flatland region with intensive agricultural production. A total of 82 liver samples were analysed by GC-MS method, revealing the presence of minimum one residue in the liver of the majority of animals (92.7%). Most commonly detected residues included n-ary sumation HCH (64.6%), n-ary sumation endrin (56.1%) and n-ary sumation dieldrin (32.3%). Mean concentrations were in the range n-ary sumation endrin > n-ary sumation dieldrin > n-ary sumation HCH > n-ary sumation NDL-PCB > n-ary sumation DDT > n-ary sumation CHL > n-ary sumation endosulfan > methoxychlor. The dominant compound within the total content of NDL-PCBs was PCB 153 (76%). The assessment of daily intake and determination of Health Index indicated that in 6.1% of the samples the consumption of one single portion of wild boar liver would be harmful to human health due to the presence of n-ary sumation endrin or NDL-PCBs.