Residues of persistent chlorinated hydrocarbons HCB, BHC isomers, Hepatochlor and -epoxide, DDE, Aldrin, Dieldrin and PCBs have been analysed in selected environmental samples - soil, grass roots, pine-needles, hen's eggs and sheep's milk from Northern Greece (Xanthi). Almost all samples have shown residues in a range of 0.1-10 ppb except eggs and milk, which have been partially contaminated with HCB (approx. 20 ppb), DDE (approx. 40 ppb) and Dieldrin (approx. 30-40 ppb) related to freshweight. The contamination levels have been in the same order of magnitude as in environmental samples from Germany except PCBs, which have been accumulated in German samples tendencially higher. All residues detected have been significantly lower than the limits allowed in foodstuffs.