ABSTRACT
Endrin has been used as an insecticide on cotton and grains, and as an avicide, and rodenticide. The amount of endrin used annually in the US prior to 1983 was estimated in 1985 to be 13,780 pounds. Endrin will be expected to strongly adsorb to soil and to be immobile in soil, based upon an estimated Koc; however, the detection of endrin in certain ground water samples suggest that leaching may be possible in some soils under certain conditions. Endrin will extensively sorb to sediment and will significantly bioconcentrate in aquatic organisms. Endrin’s source in the environment has been from use as an insecticide, avicide, and rodenticide. If endrin is released to soil, it will be expected to persist for extremely long periods of time. Endrin appears to be resistant to biodegradation in natural waters and most soils. Major general population exposure to endrin will occur through consumption of contaminated food and drinking water.
