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EL RETO DEL MEDIO AMBIENTE

OCTOBER 1991   -  Volume: 66 -  Pages: 63

DOI:

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[No Consta]

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Downloads:   261

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Received Date :   1 October 1991


Key words:
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Article type:
ARTICULO DE INVESTIGACION / RESEARCH ARTICLE
Section:
VARIOUS

Cada vez tenemos un planeta más contaminado: el aire, el agua y la tierra están recibiendo más productos de desecho de los que puede eliminar de forma natural. La consecuencia es que se produce una acumulación progresiva de sustancias contaminantes. Algunas de ellas han existido siempre en la naturaleza y su carácter contaminante viene dado por su concentración excesiva. Tal es el caso del dióxido de carbono que los vegetales verdes utilizan en su metabolismo. Otros se degradan y son asimilados o "digeridos" por el medio natural no sin antes producir sus nocivos efectos. Otros se van almacenando sin remedio en nuestro medio vital (incluídos los organismos vivos) produciendo daños acumulativos en el tiempo.

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