Title
Anthropogenic and naturally-produced organobrominated compounds in marine mammals from Brazil
Author
Faculty/Department
Faculty of Sciences. Biology
Faculty of Pharmaceutical, Biomedical and Veterinary Sciences. Pharmacy
Publication type
article
Publication
Oxford ,
Subject
Biology
Source (journal)
Environment international. - Oxford
Volume/pages
36(2010) :1 , p. 60-67
ISSN
0160-4120
ISI
000273245200008
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Liver samples from 51 cetaceans, comprising 10 species, stranded between 1994 and 2006 in a highly industrialized and urbanized region in Southeast Brazil, were analyzed for polybrominated diphenyl ethers (PBDEs) and methoxylated-PBDEs (MeO-PBDEs). A concentration range of PBDEs (35960 ng/g lw) similar to that observed in Northern Hemisphere dolphins was found. MeO-PBDE concentrations in continental shelf (CS) dolphins from Brazil are among the highest detected to date in cetaceans (up to 250 µg/g lw). Higher ÓMeO-PBDE concentrations were measured in CS and oceanic dolphins than in estuarine dolphins. The ÓPBDE/ÓMeO-PBDE ratio varied significantly ranging from a mean value of 7.12 to 0.08 and 0.01 for estuarine, CS and oceanic species, respectively. A positive correlation was observed between ÓPBDE and year of stranding of male estuarine dolphins (Sotalia guianensis), which suggests temporal variation in the exposure. Placental transfer of organobrominated compounds was also evidenced in S. guianensis.
E-info
https://repository.uantwerpen.be/docman/iruaauth/2fb471/f3cdaff9da5.pdf
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