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- Title
Lysosomal Fragility in Earthworms (Eisenia Veneta) Exposed to Heavy Metal Contaminated Soils from Two Abandoned Pyrite Ore Mines in Southern Norway.
- Authors
Hønsi, Torunn G.; Stubberud, Hege E.; Andersen, Sjur; Stenersen, Jørgen
- Abstract
In this study we have investigated the toxicity of soils from the two abandoned pyrite mines Ertelien and Konnerud in the southern part of Norway. Soil samples were collected close to the pithead of the mines, and earthworms were exposed to different concentrations of the contaminated mine soil mixed with commercial plant soil for a period of 14 days. Life-cycle responses such as growth and survival, as well as the biomarker response lysosomal fragility were measured. The body burdens of the four heavy metals Cu, Cd, Zn and Pb were detected in the worms, and the body concentration of the metals generally increased with increasing heavy metal concentration in the soil. The growth and mortality of the earthworms were not influenced when exposed to any of the mine soil concentrations used. The lysosomal fragility of the earthworm coelomocytes measured by the neutral red retention time (NRR-time) was found to be markedly reduced in all the exposed earthworms. This assay seems to be a sensitive and dose dependent endpoint for the toxicity assessment of heavy metal mixtures in pyrite mine soils.
- Subjects
SOIL pollution; SOIL composition; EARTHWORMS; HEAVY metals; PYRITES; MINE soils
- Publication
Water, Air & Soil Pollution, 2003, Vol 142, Issue 1-4, p27
- ISSN
0049-6979
- Publication type
Article