Exposure of diamond polishers to cobalt

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      <subfield code="a">Exposure of diamond polishers to cobalt</subfield>
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      <subfield code="a">Interstitial pulmonary fibrosis due to 'hard metal' exposure is well known, and the presence of cobalt has always been considered as the causative factor. In this study the dust composition in different workplaces where diamond disks are in use has been determined. Careful investigation showed that the exposure to respirable dust was comparable to that of 'hard metal' workers. The dust consists mainly of iron and cobalt particles and small amounts of silica</subfield>
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      <subfield code="a">The Annals of occupational hygiene</subfield>
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      <subfield code="t">The Annals of occupational hygiene</subfield>
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      <subfield code="g">nº 6, December 1990 ; p. 609-614</subfield>
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