Document Detail


Food chain transfer of zinc within the ecosystems of old and modern metalliferous mine wastes.
MedLine Citation:
PMID:  12088376     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Concentrations of zinc in mine waste, vegetation, invertebrate and small mammals from abandoned mines and a modern mine site have been determined in order to assess and compare environmental risk. Very high concentrations of zinc in mine waste from all sites were reflected in vegetation zinc levels but not in invertebrates and mammals. Physiological regulatory control mechanisms operate to optimise zinc retention, and maintain homeostasis in animals by enhancing absorption of zinc from diets low in the trace element, and by buffering the potential accumulative effects of high dietary levels of the metal. Zinc is not considered to be an acute toxicity factor precluding colonisation of these mine sites by invertebrates and mammals though it maybe a selective force influencing the species composition and relative abundance in animal communities.
Authors:
A Milton; M S Johnson
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Environmental technology     Volume:  23     ISSN:  0959-3330     ISO Abbreviation:  Environ Technol     Publication Date:  2002 May 
Date Detail:
Created Date:  2002-06-28     Completed Date:  2002-12-10     Revised Date:  2007-03-21    
Medline Journal Info:
Nlm Unique ID:  9884939     Medline TA:  Environ Technol     Country:  England    
Other Details:
Languages:  eng     Pagination:  525-36     Citation Subset:  IM    
Affiliation:
Knight Piesold, Kanthack House, Ashford, Kent, United Kingdom.
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MeSH Terms
Descriptor/Qualifier:
Animals
Ecosystem*
Environmental Monitoring
Food Chain*
Invertebrates
Mammals
Mining*
Plants
Risk Assessment
Zinc / analysis,  pharmacokinetics*
Chemical
Reg. No./Substance:
7440-66-6/Zinc

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


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