Document Detail


Evaluation of cetacean exposure to organotin compounds in Brazilian waters through hepatic total tin concentrations.
MedLine Citation:
PMID:  18440109     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In Brazil, there is no restriction to the use of organotins (OTs). Previous investigations have shown that hepatic SigmaSn in cetaceans is predominantly organic. Hepatic SigmaSn concentrations were determined by GFAAS in 67 cetaceans (13 species) that stranded on Rio de Janeiro (RJ) and Espirito Santo (ES) states. Concentrations (in ng/g wet wt.) of marine tucuxis (n=20) from the highly contaminated Guanabara Bay (in RJ) varied from 1703 to 9638. Concentrations of three marine tucuxi foetuses and one newborn calf (all from Guanabara Bay) varied between 431 and 2107. Contrastingly, the maximum level among 19 oceanic dolphins was 346, and 15 out of these 19 specimens presented concentrations below detection limit. The levels of Sn in six marine tucuxis from a less contaminated area (ES) varied from below detection limit to 744. Comparing to the literature, coastal cetaceans from Brazil appear to be highly exposed to OTs.
Authors:
Paulo R Dorneles; José Lailson-Brito; Marcos A S Fernandez; Lara G Vidal; Lupércio A Barbosa; Alexandre F Azevedo; Ana B L Fragoso; João P M Torres; Olaf Malm
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-04-25
Journal Detail:
Title:  Environmental pollution (Barking, Essex : 1987)     Volume:  156     ISSN:  1873-6424     ISO Abbreviation:  Environ. Pollut.     Publication Date:  2008 Dec 
Date Detail:
Created Date:  2008-11-17     Completed Date:  2009-01-14     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8804476     Medline TA:  Environ Pollut     Country:  England    
Other Details:
Languages:  eng     Pagination:  1268-76     Citation Subset:  IM    
Affiliation:
Laboratório de Radioisótopos Eduardo Penna Franca, Instituto de Biofísica Carlos Chagas Filho, CCS, Universidade Federal do Rio de Janeiro, Brazil. dornelespr@gmail.com
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MeSH Terms
Descriptor/Qualifier:
Animals
Brazil
Dolphins*
Environmental Exposure
Life Style
Liver / chemistry
Organotin Compounds / toxicity*
Seawater
Species Specificity
Tin / analysis
Water Pollutants, Chemical / toxicity*
Chemical
Reg. No./Substance:
0/Organotin Compounds; 0/Water Pollutants, Chemical; 7440-31-5/Tin

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


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