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KMID : 0895419910010010062
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Journal of Korean Society of Occupational and Enviromental Hygiene
1991 Volume.1 No. 1 p.62 ~ p.67
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Size Distributions and Respirable Mass Fractions of Airborne Coal Dust in Underground Coal Mines
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Abstract
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Authors investigated size distributions of airborne mixed coal dust at drillings, coal-faces, and separating sites of underground coal mines in Taebaek, Hwasun, and Jeomchon area by ambient cascade impactors. And Respirable mass fractions were calculated from the size distributions by the ACGIH criteria.
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