Paul Lachine

De Fukushima al desarme

SYDNEY --  Meses después de que los devastadores terremoto y maremoto del 11 de marzo azotaran al Japón, el actual desastre nuclear en Fukushima agrava la tragedia en materia humanitaria e impide la recuperación. Los reactores dañados y los estanques de combustible gastado contienen unas diez veces más combustible nuclear que el reactor de Chernóbil que estalló en 1986. En tres reactores, el combustible se ha fundido, casi con toda certeza a través de las vasijas de reacción; se han abierto brechas en las estructuras de contención primaria; las explosiones han destrozado la contención secundaria (los edificios); continúan las emisiones radioactivas y no se ha restablecido el enfriamiento en bucle cerrado.

Ahora las instalaciones están inundadas del todo con más de 100.000 toneladas de agua residual sumamente radioactiva, pues se sigue vertiendo agua  en ellas para impedir emisiones radioactivas en gran escala. El combustible gastado en los estanques adyacentes a cada uno de los reactores, que contienen más radioactividad que estos mismos, ha quedado también gravemente dañado, por lo que ha habido fugas radioactivas y sigue sin recibir el necesario enfriamiento estable. El combustible gastado del reactor 4 causó una explosión de hidrógeno y un incendio el 15 de marzo.

A consecuencia de ello, ya ha habido emisiones de radiación al aire, a la tierra y al océano en grandes cantidades, en escala comparable a la de Chernóbil,. Continuará habiendo más emisiones, probablemente durante años.

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