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The World of Protozoa, Rotifera, Nematoda and Oligochaeta

Ref ID : 7014

Randall S. Wentsel and Mark A. Guelta; Avoidance of Brass Powder-Contaminated Soil by the Earthworm, Lumbricus terrestris. Environmental Toxicology & Chemistry 7:241-243, 1988

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Tests on the avoidance of brass powder (70% Cu, 30% Zn) contaminated soils by the earthworm Lumbricus terrestris at concentrations ranging from 0 to 200 µg/g were conducted. Avoidance was significant (p<0.001) at brass concentrations as low as 38 µg/g. Avoidance was found to be a more sensitive indicator of the impact of brass powder on the worms than sublethal effects measured by weight loss.