Pyrethroids: A new threat to marine mammals?

被引：101

作者：

Alonso, Mariana B. ^{[2
,3
,5
]}

Feo, Maria Luisa ^{[1
]}

Corcellas, Cayo ^{[1
]}

Vidal, Lara G. ^{[2
,3
]}

Bertozzi, Carolina P. ^{[5
]}

Marigo, Juliana ^{[5
]}

Secchi, Eduardo R. ^{[4
]}

Bassoi, Manuela ^{[4
]}

Azevedo, Alexandre F. ^{[3
]}

Dorneles, Paulo R. ^{[2
,3
]}

Torres, Joao Paulo M. ^{[2
]}

Lailson-Brito, Jose ^{[3
]}

Malm, Olaf ^{[2
]}

Eljarrat, Ethel ^{[1
]}

Barcelo, Damia ^{[1
]}

机构：

[1] CSIC, Dept Environm Chem, IDAEA, ES-08034 Barcelona, Spain

[2] Fed Univ Rio de Janeiro UFRJ, Biophys Inst Carlos Chagas Filho IBCCF, Radioisotope Lab Eduardo Penna Franca LREPF, Rio De Janeiro, Brazil

[3] Rio de Janeiro State Univ UERJ, Sch Oceanog, Aquat Mammal & Bioindicator Lab MAQUA, Rio De Janeiro, Brazil

[4] Fundacao Univ Fed Rio Grande, Inst Oceanog, Turtles & Marine Mammals Lab, Rio Grande, RS, Brazil

[5] Projeto BioPesca, Praia Grande, SP, Brazil

来源：

ENVIRONMENT INTERNATIONAL | 2012年 / 47卷

关键词：

Bioaccumulation; Breast milk; Franciscana dolphin; Liver; Maternal transfer; Placenta; PONTOPORIA-BLAINVILLEI; ACUTE TOXICITY; SAO-PAULO; BRAZIL; INSECTICIDES; DELTAMETHRIN; CYPERMETHRIN; WATER; IDENTIFICATION; RESISTANCE;

D O I：

10.1016/j.envint.2012.06.010

中图分类号：

X [环境科学、安全科学];

学科分类号：

083001 [环境科学];

摘要：

The present study constitutes the first investigation to demonstrate pyrethroid bioaccumulation in marine mammals, despite the assumption that these insecticides are converted to non-toxic metabolites by hydrolysis in mammals. Twelve pyrethroids were determined in liver samples from 23 male franciscana dolphins from Brazil. The median concentration values for total pyrethroids were 7.04 and 68.4 ng/g lw in adults and calves, respectively. Permethrin was the predominant compound, contributing for 55% of the total pyrethroids. Results showed a distinct metabolic balance of pyrethroids through dolphin life. High loads are received at the beginning of their lives and, when they reach sexual maturity, these mammals seem to degrade/metabolize pyrethroids. Maternal transfer of these compounds was also evaluated through the analysis of breast milk and placenta samples. Pyrethroids were detected in both matrices, with values between 2.53-4.77 ng/g lw and 331-1812 ng/g lw, respectively. Therefore, for the first time, a study shows mother-to-calf transfer of pyrethroids by both gestational and lactation pathways in dolphins. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：99 / 106

页数：8

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