Abstract
Tetrahymena pyriformis, a common freshwater ciliate concentrated the four common HCH (Hexachlorocyclohexane) isomers viz., α, β, δ, and γ to varied extent. Bioconcentration factor [as expressed by the ratio of cellular insecticide in ng mg−1 (dry weight) to supernatant in ng μL−1 ranged from 342 to 2260 for α-HCH, 37 to 831 for β-HCH, 326 to 2806 for δ-HCH and from 106 to 1214 ppm for γ-HCH.
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Mathur, R., Saxena, D.M. Bioconcentration of HCH isomers by the ciliate protozoan, Tetrahymena pyriformis under laboratory conditions. Water Air Soil Pollut 32, 323–327 (1987). https://doi.org/10.1007/BF00225118
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DOI: https://doi.org/10.1007/BF00225118