Organochlorine pesticides (M) and polychlorinated biphenyls (PCBs) in sediments and crabs (Chasmagnathus granulata, Dana, 1851) from mangroves of Guanabara Bay, Rio de Janeiro State, Brazil

被引：73

作者：

de Souza, Alexandre Santos ^{[1
,2
,3
]}

Machado Torres, Joao Paulo ^{[1
,4
]}

Meire, Rodrigo Ornellas ^{[1
,4
]}

Neves, Rafael Curcio ^{[1
,5
]}

Couri, Marcia Souto ^{[1
,3
]}

Serejo, Cristiana Silveira ^{[1
,3
]}

机构：

[1] Univ Fed Rio de Janeiro, Lab Radioisotopos, Inst Biofis Carlos Chagas Filho, BR-21941900 Rio De Janeiro, Brazil

[2] Brazilian Environm Inst Nat Renewable Resources I, Rio De Janeiro, Brazil

[3] Univ Fed Rio de Janeiro, Natl Museum, Rio De Janeiro, Brazil

[4] Univ Fed Rio de Janeiro, Inst Biophys, Rio De Janeiro, Brazil

[5] Univ Fed Rio de Janeiro, Inst Biol, Rio De Janeiro, Brazil

来源：

CHEMOSPHERE | 2008年 / 73卷 / 01期

关键词：

crabs; mangroves; organochlorine pesticides; PCBs; petrochemicals; sediments;

D O I：

10.1016/j.chemosphere.2007.04.093

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Organochlorinated compounds, seven indicator PCB congeners, DDT and its main metabolites, were determined in sediment and crab (Chasmagnathus granulata) samples collected from mangrove areas near Rio de Janeiro, Brazil. Samples were analysed according to the FAO/SIDA protocols using continuous non-polar solvent extraction and a conventional GC-ECD apparatus. The highest levels of total PCB congeners and total DDT metabolites in sediments (184.16 and 37.40 ng g(-1) d.w. respectively) and crab eggs (570.62 and 98.22 ng g(-1) d.w. respectively) were found at impacted mangroves. The higher PCB congeners than DDT metabolites levels suggesting a stronger industrial impact in this area. The results indicate that the population density of crab is negatively affected by sediment contamination that is reflected basically by the organochlorine content in the female eggs. The organochlorine concentration in eggs is more significant to evaluate or estimate an impact of these pollutants upon C. granulata population than the organochlorine concentration in sediment samples. (c) 2008 Elsevier Ltd. All rights reserved.

引用

页码：S186 / S192

页数：7

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