A Survey on the Residues of Organochlorine Pesticides in Some Marine Foods from South Coast of Korea

The appearance of organochlorine pesticide residues in shellfish, seaweed, mud and water samples collected from south coast of Korean peninsula in September 1974 was surveyed to obtain the following results. 1) The residues in shellfish samples were found to be in the orders of Choongmoo > Yeosoo > Busan > Mokpo area, top-shell >short-necked clam > mussel > hard clam > red-shell, aldrin > > heptachlor> > dieldrin > heptachlor epoxide > endrin and in the range of edible fresh muscle. 2) The residues in seaweed samples from Wando area were found to be in the orders of tangle > green laver > laver, > > aldrin > dieldrin > heptachlor > heptachlor epoxide > endrin and in the range of dry matter. 3) The residues in water samples were found to be in the orders of Yeongsan River > Nakdong River > Seomjin River > Choongmoo shellfish farm, > > aldrin > heptachlor > dieldrin > heptachlor epoxide > endrin and in the range of while those in mud samples were in the order of > > aldrin > dieldrin > heptachlor > heptachlor epoxide > endrin and in the range of dry matter. It should be noted that BHC contents of water samples from Yeongsan and Nakdong rivers were far above the recommended environmental levels in USA.