A review of PCB concentrations in tropical media, 1996-2007

A review of PCB concentrations in tropical media, 1996-2007

A review of publications from the past ten years that report PCB concentrations in sediments and biota is given. During the past ten years only 33 papers out of the published 177 papers on PCBs were from samples obtained in tropical areas. Sediments from the tropics contained relatively low concentr...

Full abstract

Bibliography

Saved in:
Journal Title: Revista de Biología Tropical
First author: Alison L. Spongberg
Other Authors: Jason D. Witter
Traslated keyword:
PCB; marine pollution; tropical areas; sediments; PCB; contaminación marina; áreas tropicales; sedimentos
Language: Undetermined
Get full text: https://revistas.ucr.ac.cr/index.php/rbt/article/view/27161
Resource type: Journal Article
Source: Revista de Biología Tropical; Vol 56, No Suppl. 4 (Year 2008).
DOI: http://dx.doi.org/10.15517/rbt.v56i4.27161
Publisher: Universidad de Costa Rica
Usage rights: Reconocimiento (by)
Categories: Life Sciences --> Biology
Abstract: A review of publications from the past ten years that report PCB concentrations in sediments and biota is given. During the past ten years only 33 papers out of the published 177 papers on PCBs were from samples obtained in tropical areas. Sediments from the tropics contained relatively low concentrations of total PCBs. The most polluted tropical site in India had sediment concentrations up to 2330 mg/g dw attributed to industrialization and pollution. Sediment from pristine areas were unquantifiable at levels below the detection limits. Biota samples covered a range of species from a range of locations. Biota from pristine tropical areas were unquantifiable at levels below the detection limits. Higher taxa from more developed sites had relatively higher concentrations when compared to other tropical biota, but were still low compared to samples from temperate climates. The lack of data from the tropics still makes correlation of PCB concentrations with other factors problematic. Rev. Biol. Trop. 56 (Suppl. 4): 1-9. Epub 2009 June 30.
Translated abstract: Se hizo una revisión de los datos publicados sobre concentraciones de PCB en sedimentos y biota durante la última década. Solamente 33 trabajos de un total de 117 sobre PCB fueron de áreas tropicales. Los sedimentos de los trópicos tienen concentraciones relativamente bajas de PCB totales. El sitio más contaminado en la India tenía concentraciones de hasta 2330 mg/g de peso seco y se le atribuye a industrialización y contaminación. En cambio, los sedimentos de áreas no contaminadas mostraron valores no cuantificables, inferiores a los límites de detección. La biota incluye un amplio ámbito de especies de varias localidades. Los organismos de áreas tropicales no contaminadas presentan valores inferiores a los límites de detección. Los táxones de áreas tropicales industrializadas muy contaminadas tienen concentraciones altas cuando se les compara con otra biota tropical, pero aún así las concentraciones son relativamente bajas cuando se les compara con muestras de climas templados. La falta de datos de los trópicos aún dificulta correlacionar las concentraciones de PCB con otros factores.

Similar Items