[MARMAM] New article about Dechlorane Compounds in Franciscana dolphin

Mariana Alonso alonso.mb at gmail.com
Mon Nov 12 10:15:38 PST 2012


Dear all,


I am pleased to announce the publication of the following article:



A. de la Torre, M. B. Alonso, M. A. Martínez,P. Sanz, L. Shen, E. J. Reiner,

J. Lailson-Brito, J. P. M. Torres, C. Bertozzi, J. Marigo, L. Barbosa, M.
Cremer,

E. Secchi, O. Malm, E. Eljarrat, and D. Barceló

(2012)

“*Dechlorane-Related Compounds in Franciscana Dolphin (Pontoporia*

*blainvillei) from Southeastern and Southern Coast of Brazil**”*

*Environment Science and Technology *



ABSTRACT: Concentrations of Dechlorane (Dec) 603 (0.75 ng/g lipid weight
(lw); mean) and Dec 602 (0.38 ng/g lw; mean) were quantified in more than
95% of the franciscana (Pontoporia blainvillei) dolphin samples, whereas
the frequency of detection decreased to 75% for Dechlorane Plus (DP) (1.53
ng/g lw, mean). The presence of Chlordene Plus (CP) was also observed (0.13
ng/g lw, mean) in half of the samples. On the contrary, Dec 604,
decachloropentacyclooctadecadiene (aCl10DP), and
undecachloropentacyclooctadecadiene (aCl11DP) concentrations were below the
limit of quantifications in all cases. To the best of our knowledge, this
is the first article reporting the presence of Dec 603, Dec 602, and CP in
mammals. For comparative purposes, levels of Mirex, polybrominated diphenyl
ethers (PBDEs), and decabromodiphenylethane (DBDPE) are also reported.
Considering geographic distribution evaluation together with the strong
positive correlations found between DP and PBDEs (rs = 0.63; p < 0.01),
highly anthropogenic areas were identified as potential sources of these
chemicals in this dolphin species. However, local sources for Dec 602, 603,
Mirex, CP, and DBDPE were not found indicating that in this case historical
use and/or atmospheric transport and deposition may play an important role
in their fate.



The full text and pdf is available from:

http://pubs.acs.org/doi/abs/10.1021/es302934p?prevSearch=%255BTitle%253A%2Bdechlorane%255D&searchHistoryKey=




For any questions or pdf requests please email:

Mariana Alonso: alonso.mb at gmail.com <skj3 at st-andrews.ac.uk>



Best wishes,

Mariana

-- 
*Dra. Mariana Batha Alonso*
*
*
*Instituto de Biofísica Carlos Chagas Filho (IBCCF - UFRJ) *
*Laboratório de Mamíferos Aquáticos e Bioindicadores (FAOC - UERJ)*
* *
*Biophysics **Institute**, **Federal **University of Rio de Janeiro, Brazil*
*Aquatic Mammal and Bioindicator Lab, University of the State of Rio de
Janeiro, Brazil
Projeto BioPesca, São Paulo, Brazil*
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