ABSTRACT
Aldrin residues in soil and plants will volatilize from soil surfaces or be slowly transformed to dieldrin in soil. Aldrin is an insecticide formerly used against termites and soil-dwelling pests such as ants, wireworms, and whitegrubs. A river die-away test was conducted in capped bottles with aldrin in raw water from the Little Miami River in Ohio. Aldrin was classified as refractory to biodegradation. The bioconcentration factor of aldrin in molluscs is 4571, in the golden orfe is 3890, in an unspecified fish is 10,715 and in the alga, Chlorellafusca, is 12,260. The fish were obtained from commercial fishermen in 1985: Pagelluserythrinus, Sargusvulgaris, Siganusrivulatis, Sphyraenasphyraena, and Trigla herundo from Abu Qir Bay; and Tilapia fish from Idku and Maryut Lakes. Individuals residing in countries where aldrin is still used are expected to be exposed to the compound by ingestion of contaminated food and drinking water.
