Document Detail


Organochlorine pesticides and polychlorinated biphenyls (PCBs) in eggs of red-legged frogs (Rana aurora) and northwestern salamanders (Ambystoma gracile) in an agricultural landscape.
MedLine Citation:
PMID:  11999766     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Organochlorine pesticides were widely used in the past in Sumas Prairie, British Columbia, Canada. In the 1990s, the hatching success of amphibians from agricultural sites was significantly depressed in the Sumas Prairie compared to reference sites. Therefore, in this study, organochlorine pesticides and polychlorinated biphenyls (PCBs) were measured in eggs of red-legged frogs (Rana aurora) and northwestern salamanders (Ambystoma gracile) from the Sumas Prairie. Egg masses were sampled from three agricultural sites that were exposed to agricultural runoff, and three reference sites that had lower agricultural runoff exposures. Not only was there little difference in contamination between agricultural and reference sites, but the levels of pesticides and PCBs found were lower than the concentrations reported to cause developmental or behavioural problems in amphibians.
Authors:
Shane R de Solla; Christine A Bishop; Karen E Pettit; John E Elliott
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Chemosphere     Volume:  46     ISSN:  0045-6535     ISO Abbreviation:  Chemosphere     Publication Date:  2002 Feb 
Date Detail:
Created Date:  2002-05-09     Completed Date:  2002-12-26     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0320657     Medline TA:  Chemosphere     Country:  England    
Other Details:
Languages:  eng     Pagination:  1027-32     Citation Subset:  IM    
Affiliation:
Canadian Wildlife Service, Environment Canada, Delta, BC.
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MeSH Terms
Descriptor/Qualifier:
Agriculture
Ambystoma*
Animals
Eggs
Environmental Exposure*
Environmental Monitoring
Environmental Pollutants / analysis,  pharmacokinetics*
Insecticides / analysis,  pharmacokinetics*
Polychlorinated Biphenyls / analysis,  pharmacokinetics*
Ranidae*
Risk Assessment
Water Pollutants, Chemical / analysis,  pharmacokinetics*
Chemical
Reg. No./Substance:
0/Environmental Pollutants; 0/Insecticides; 0/Polychlorinated Biphenyls; 0/Water Pollutants, Chemical

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


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