Document Detail

Heavy metals in green mussel (Perna viridis) and oysters (Crassostrea sp.) from Trinidad and Venezuela.
MedLine Citation:
PMID:  11994781     Owner:  NLM     Status:  MEDLINE    
Heavy metal concentrations were monitored in edible soft tissues of shellfish from Trinidad and Venezuela. Oysters (Crassostrea sp.) and the green mussel (Perna viridis), which is a recently transplanted species to the Caribbean from the Far East, were collected at six locations in Venezuela and five in Trinidad, the latter along the coast line of the Gulf of Paria. Simple and low-cost methods of analysis were optimized and validated using standard reference materials. Cadmium, copper, lead, nickel, and zinc were analyzed by flame atomic absorption spectrometry. Mercury was determined by cold-vapor atomic absorption spectrometry. The present study has confirmed that oysters have a much greater capacity for accumulation of copper and zinc than does green mussel. In addition, concentrations of copper and zinc in oysters (Crassostrea sp.) at many of the sites in the Gulf of Paria exceeded local and international standards, whereas green mussel P. viridis contained generally acceptable levels for human consumption.
L Rojas de Astudillo; I Chang Yen; J Agard; I Bekele; R Hubbard
Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Archives of environmental contamination and toxicology     Volume:  42     ISSN:  0090-4341     ISO Abbreviation:  Arch. Environ. Contam. Toxicol.     Publication Date:  2002 May 
Date Detail:
Created Date:  2002-05-07     Completed Date:  2002-06-21     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0357245     Medline TA:  Arch Environ Contam Toxicol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  410-5     Citation Subset:  IM    
Department of Chemistry, Universidad de Oriente, Cumaná, Estado Sucre, Venezuela.
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MeSH Terms
Bivalvia / chemistry*
Metals, Heavy / pharmacokinetics*
Ostreidae / chemistry*
Species Specificity
Spectrophotometry, Atomic
Trinidad and Tobago
Water Pollutants, Chemical / pharmacokinetics*
Reg. No./Substance:
0/Metals, Heavy; 0/Water Pollutants, Chemical

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