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El asbesto como un cofactor en la carcinogénesis entre los trabajadores de procesamiento de níquel
Science (New York, N.Y.)
|July 18, 1980
Resumen
Los trabajadores de las fundiciones de níquel expuestos a las fibras de amianto en los minerales pueden desarrollar cáncer de pulmón y de senos nasales. La higiene actual que se centra solo en el níquel puede ser insuficiente, lo que requiere una reevaluación para evitar la inhalación de amianto.
Área de la Ciencia:
- Salud ocupacional y salud en el trabajo.
- Ciencias ambientales Ciencias ambientales.
- Oncología Oncología.
Sus antecedentes:
- Los cánceres de pulmón y de seno nasal se observan en los trabajadores de las fundiciones de níquel.
- La carcinogenicidad del níquel es la causa asumida en ausencia de otras explicaciones.
- Se están explorando hipótesis alternativas para la causalidad del cáncer.
Objetivo del estudio:
- Para investigar el papel potencial de la contaminación por asbesto en los minerales de níquel.
- Evaluar la adecuación de las actuales medidas de higiene para los trabajadores de las fundiciones de níquel.
- Para identificar posibles co-exposiciones que contribuyen a los riesgos de cáncer.
Principales métodos:
- Análisis de la composición del mineral de níquel de Nueva Caledonia.
- Identificación de la contaminación por fibra de amianto en las rocas anfitrionas serpentinizadas.
- Evaluación de la exposición de los trabajadores al polvo que contiene amianto.
Principales resultados:
- Los minerales de níquel en Nueva Caledonia están fuertemente contaminados con fibras de amianto crisotilo.
- Las rocas anfitrionas serpentinizadas, una fuente de minerales de níquel, contienen grandes cantidades de amianto.
- Los trabajadores pueden estar expuestos a las fibras de amianto durante la minería y el procesamiento.
Conclusiones:
- La exposición al amianto es un plausible factor que contribuye a los cánceres en los trabajadores de las fundiciones de níquel.
- Las medidas de higiene centradas únicamente en el níquel pueden ser inadecuadas.
- Es necesaria una reevaluación de los protocolos de seguridad para prevenir la inhalación de amianto.
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