Fluctuations of occupational exposure indices to mixtures

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<title>Fluctuations of occupational exposure indices to mixtures</title>
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<title>The Annals of occupational hygiene</title>
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<name type="personal" usage="primary" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080137656">
<namePart>Kumagai, Shinji</namePart>
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<namePart>Matsunaga, Ichiro</namePart>
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<dateIssued encoding="marc">1992</dateIssued>
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<abstract displayLabel="Summary">In workplaces, two or more hazardous substances are often used simultaneously. Daily average exposure to each can vary considerably from day to day, and thus indices (E mix) combining exposures to all substances used must vary in a more complex manner. In this study, we examined the between-days distributions of E mix using occupational data for five workers exposed to two or more organic solvents, and found E mix to be log-normally distributed. To describe the between days fluctuation of E mix, we propose a new model in which the causes of fluctuation were classified as a Specific Factor and a Common Factor. We also present a new method for estimating the distribution of E mix</abstract>
<note type="statement of responsibility">S. Kumagai and I. Matsunaga</note>
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<topic>Higiene industrial</topic>
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<topic>Contaminantes químicos</topic>
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<topic>Sustancias tóxicas y peligrosas</topic>
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<topic>Riesgo laboral</topic>
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<title>The Annals of occupational hygiene</title>
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<text>nº 2, April 1992 ; p. 131-143</text>
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