Palabras clave
marine pollution
tropical areas
sediments
PCB
contaminación marina
áreas tropicales
sedimentos
Cómo citar
Resumen
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.Citas
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Derechos de autor 2008 Revista de Biología Tropical