Organochlorine compound accumulation in delphinids from Rio de Janeiro State, southeastern Brazilian coast

被引：49

作者：

Lailson-Brito, Jose ^{[1
]}

Dorneles, Paulo R. ^{[2
]}

Azevedo-Silva, Claudio E. ^{[2
]}

Bisi, Tatiana L. ^{[1
]}

Vidal, Lara G. ^{[1
]}

Legat, Leticiaa N. ^{[1
]}

Azevedo, Alexandre F. ^{[1
]}

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

Malm, Olaf ^{[2
]}

机构：

[1] Rio de Janeiro State Univ UERJ, Aquat Mammal & Bioindicator Lab MAQUA, Sch Oceanog, BR-20550013 Rio De Janeiro, Brazil

[2] Fed Univ Rio de Janeiro UFRJ, Radioisotope Lab, Inst Biophys, BR-21941900 Rio De Janeiro, Brazil

来源：

SCIENCE OF THE TOTAL ENVIRONMENT | 2012年 / 433卷

关键词：

PCB; DDT; HCB; Cetacean; Bioaccumulation; Discriminant analysis; PERSISTENT ORGANIC POLLUTANTS; BOTTLE-NOSED DOLPHINS; PORPOISE PHOCOENA-PHOCOENA; WHALES ORCINUS-ORCA; POLYCHLORINATED BIPHENYL EXPOSURE; POLYCYCLIC AROMATIC-HYDROCARBONS; KILLER WHALES; COMMON DOLPHINS; TURSIOPS-TRUNCATUS; SOTALIA-GUIANENSIS;

D O I：

10.1016/j.scitotenv.2012.06.030

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The present study investigated organochlorine compound levels (PCBs, DDTs and HCB) in blubber samples of six delphinid species from Rio de Janeiro State, southeastern Brazilian coast. The species analyzed inhabit the continental shelf (one killer whale, one false killer whale, two bottlenose dolphins, three rough-toothed dolphins, and four long-beaked common dolphins) and open ocean (four Fraser's dolphins). PCBs represented the greatest proportion of the sum of all measured organochlorines (from 0.60 to 257.2 mu g g(-1) lw). followed by DDTs (from 0.15 to 125.6 mu g g(-1) lw), and, at last, HCB (from <DL to 2.91 mu g g(-1) lw). Higher concentrations were found in species that occupy the inner continental shelf (rough-toothed dolphin), as well as in cetaceans that are known to or are suspected to prey on other marine mammals (killer whale and false killer whale, respectively). The findings have shown that organochlorine levels in delphinids from southeastern Brazilian coast are comparable to those reported in cetaceans from highly industrialized regions of the Northern Hemisphere. Organochlorine accumulation patterns among delphinids from Rio de Janeiro State were related to habitat use. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：123 / 131

页数：9

共 78 条

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