河川及び湖沼の水及び魚類中の除草剤

Abstract

Concentrations of 4 insecticides in water and fish from rivers and lakes were reviewed and the bioconcentration potential of the insecticides and their contamination in the field fish were evaluated. For the water survey data in Japan and foreign countries, diazinon and malathion were detected at about the same concentration levels, but fenitrothion and fenthion could not be adequately compared because of few reports in foreign countries. For the fish survey data, the 3 insecticides except malathion were detected in fish from rivers and lakes in Japan and the concentrations of 3 insecticides in fish had a tendency to increase and decrease nearly according to those in water, while malathion was detected in fish from a few lakes in Egypt and India because of its high level contamination in these lakes. The concentrations of 4 insecticides in fish from rivers and lakes were approximately estimated by the laboratory bioconcentration factors of these insecticides in fish.