Reference : High Accumulation of Perfluorooctane Sulfonate (PFOS) in Marine Tucuxi Dolphins (Sota...
Scientific journals : Article
Life sciences : Aquatic sciences & oceanology
Life sciences : Environmental sciences & ecology
Life sciences : Zoology
Physical, chemical, mathematical & earth Sciences : Chemistry
http://hdl.handle.net/2268/1416
High Accumulation of Perfluorooctane Sulfonate (PFOS) in Marine Tucuxi Dolphins (Sotalia guianensis) from the Brazilian Coast
English
Dorneles, Paulo R [Radioisotope Laboratory, Biophysics Institute, Rio de Janeiro Federal University (UFRJ), Brazil > > > >]
Lailson-Brito, José [Aquatic Mammal Laboratory (MAQUA), Oceanography Faculty, Rio de Janeiro State University (UERJ), Brazil > > > >]
Azevedo, Alexander [Oceanography Faculty, Rio de Janeiro State University (UERJ), Brazil > > > >]
Meyer, Johan [Universiteit Antwerpen - UA > Department of Biology > Laboratory for Ecophysiology, Biochemistry and Toxicology > >]
Vidal, Lara G [Oceanography Faculty, Rio de Janeiro State University (UERJ), Brazil > > > >]
Fragoso, Anna B [Oceanography Faculty, Rio de Janeiro State University (UERJ), Brazil > > > >]
Torres, Joao P [Radioisotope Laboratory, Biophysics Institute, Rio de Janeiro Federal University (UFRJ), Brazil, > > > >]
Malm, Olaf [Radioisotope Laboratory, Biophysics Institute, Rio de Janeiro Federal University (UFRJ), Brazil, > > > >]
Blust, Ronny [Universiteit Antwerpen - UA > Department of Biology > > >]
Das, Krishna mailto [Université de Liège - ULg > Département des sciences et gestion de l'environnement > Océanologie >]
2008
Environmental Science & Technology
American Chemical Society
42
14
5368-5373
Yes (verified by ORBi)
International
0013-936X
Washington
DC
[en] Perfluorooctane Sulfonate ; Tucuxi ; Sotalia guianensis ; Brazil ; marine mammals ; pollutants ; perfluoroalkyl compounds ; PFOs ; PFCs
[en] Perfluorooctane sulfonate (PFOS) and other perfluoroalkyl
compounds (PFCs) were measured in liver samples from 29
marine tucuxi dolphins from Rio de Janeiro state (RJ), Brazil. PFC
measurement combined liquid chromatography and mass
spectrometry, using a CapLC system connected to a Quadrupole-
LIT mass spectrometer. PFOS was the only PFC detected
and it was so in all samples. PFOS concentrations (ng ·g-1
dw) of dolphins (n)23) from the highly contaminated Guanabara
Bay (in RJ) varied between 43 and 2431 as well as between
76 and 427 from areas of RJ other than the quoted bay (n ) 6).
Concentrations of three fetuses and one neonate varied
between 664 and 1590. Fetus/mother ratios were calculated in
two situations (2.75 and 2.62). It seems that mother-to-calf
transference plays important role for relationships between
PFOS and age. When a one-year-old male calf presenting 2431
ng ·g-1 dw was excluded from the test, significant correlations
were observed between PFOS concentrations and both
age and total length. Despite the placental transference, PFOS
concentrations were not significantly lower in females than
in males. PFOS levels in marine tucuxi dolphins from Guanabara
Bay are among the highest detected to date in cetaceans,
andthismayrepresentathreat to the small population concerned.
MARE
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS ; Ministry of Education of BrazilsCAPES(fellowshiptoP.R.D.,“SandwichProgramme”s PDEE) ; Brazilian Research CouncilsCNPq ; Rio de Janeiro State Government Research AgencysFAPERJ (“Pensa Rio” Program)
Researchers ; Professionals ; Students ; General public
http://hdl.handle.net/2268/1416
http://reflexions.ulg.ac.be/cms/c_18399/tucuxi-et-nouveaux-polluants

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