Determination of exposure to cobalt and nickel in the atmosphere in the hard metal industry

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<rdf:Description>
<dc:creator>Kusaka, Yukinori</dc:creator>
<dc:date>1992-10-01</dc:date>
<dc:description xml:lang="es">Sumario: Cobalt and nickel, matrices of hard metal, have been shown to be respiratory sensitizers. Airborne dust at hard metal-griding worksites in a factory with a work-force of about 180 grinders was analysed for cobalt and nickel. The electron-microscopic X-ray microanalysis of airborne dust particles demonstrated that they had the same metallic components as hard metal products. Andersen sampling revealed that 66% of total dust was respirable (<7 microm). Consecutive personal sampling for individuals indicated log-normally distributed concentrations of total dust and cobalt. Of the workers surveyed, 12% (16 out of 133) were exposed to cobalt at more than 50 microm exp. (-3), while 1.5% (two out of 133) were exposed to nickel concentrations of more then 50 microm exp. (-3). A correlation between cobalt exposure concentrations and nickel concentrations for individuals was significant and positive</dc:description>
<dc:identifier>https://documentacion.fundacionmapfre.org/documentacion/publico/es/bib/46097.do</dc:identifier>
<dc:language>eng</dc:language>
<dc:rights xml:lang="es">InC - http://rightsstatements.org/vocab/InC/1.0/</dc:rights>
<dc:subject xml:lang="es">Higiene industrial</dc:subject>
<dc:subject xml:lang="es">Contaminantes químicos</dc:subject>
<dc:subject xml:lang="es">Partículas ambientales</dc:subject>
<dc:subject xml:lang="es">Polvo</dc:subject>
<dc:subject xml:lang="es">Níquel</dc:subject>
<dc:subject xml:lang="es">Cobalto</dc:subject>
<dc:subject xml:lang="es">Contaminación atmosférica</dc:subject>
<dc:subject xml:lang="es">Métodos de análisis</dc:subject>
<dc:subject xml:lang="es">Rayos X</dc:subject>
<dc:type xml:lang="es">Artículos y capítulos</dc:type>
<dc:title xml:lang="es">Determination of exposure to cobalt and nickel in the atmosphere in the hard metal industry</dc:title>
<dc:title xml:lang="es">Título: The Annals of occupational hygiene</dc:title>
<dc:relation xml:lang="es">En: The Annals of occupational hygiene. - Oxford [etc.]. - nº 5, October 1992 ; p. 497-507</dc:relation>
</rdf:Description>
</rdf:RDF>