Document Detail

Resistance to copper toxicity in populations of the earthworms Lumbricus rubellus and Dendrodrilus rubidus from contaminated mine wastes.
MedLine Citation:
PMID:  11596768     Owner:  NLM     Status:  MEDLINE    
Two arsenic and heavy metal-contaminated mine spoil sites, at Carrock Fell, Cumbria, United Kingdom, and Devon Great Consols Mine, Devon, United Kingdom, have been found to support populations of the earthworms Lumbricus rubellus Hoffmeister and Dendrodrilus rubidus (Savigny). Lumbricus rubellus and D. rubidus collected from the Devon site and an uncontaminated site were kept for 28 d in uncontaminated soil and in soil containing 750 mg/kg CuCl2, the state of the specimens being recorded using a semiquantitative assessment of earthworm health (condition index). The condition index remained high for all specimens except those of L. rubellus and D. rubidus from uncontaminated sites, which displayed 100% mortality. Bioavailability of Cu in the soils from one uncontaminated and two contaminated sites and in the uncontaminated soil treated with CuCl2 was determined using sequential extraction. Soils from Devon Great Consols had the greatest availability of Cu, Carrock Fell the lowest. Total tissue Cu for L. rubellus and D. rubidus from the contaminated sites did not change significantly for each species during the experiment. Total tissue concentrations of Cu for L. rubellus and D. rubidus from uncontaminated sites increased significantly during the first 7 d, after which mortality was 90%, making it impossible to continue the analysis.
C J Langdon; T G Piearce; A A Meharg; K T Semple
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Environmental toxicology and chemistry / SETAC     Volume:  20     ISSN:  0730-7268     ISO Abbreviation:  Environ. Toxicol. Chem.     Publication Date:  2001 Oct 
Date Detail:
Created Date:  2001-10-12     Completed Date:  2002-02-07     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8308958     Medline TA:  Environ Toxicol Chem     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2336-41     Citation Subset:  IM    
Institute of Environmental and Natural Sciences, Lancaster University, United Kingdom.
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MeSH Terms
Arsenic / adverse effects
Biological Availability
Copper / toxicity*
Industrial Waste / adverse effects*
Metals, Heavy / adverse effects
Oligochaeta / physiology*
Soil Pollutants
Reg. No./Substance:
0/Industrial Waste; 0/Metals, Heavy; 0/Soil Pollutants; 7440-38-2/Arsenic; 7440-50-8/Copper

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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