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KMID : 0371019870200020255
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Journal of Preventive Medicine and Public Health
1987 Volume.20 No. 2 p.255 ~ p.260
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Relationship between the Measurement Values of the Digital Dust Indicator and Personal Dust Sampler
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윤영노/Yoon YN
이정주/정호근/최호춘/Lee JJ/Chung HK/Choi HC
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Abstract
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The digital dust indicator (Sibata P-5), one of the direct-reading instruments was evaluated for the respirable dust in the underground coal mine environments. As a reference, respirable dust was determined using three cyclones and/or impactors. All the tests were performed on aerosol in twenty underground coal mines. The coefficients of mass-relative concentration were 0.067±0.054 (Mean± Standard deviation) (range: 0.006-0.172). The relationship between relative concentration and temperature was not significant statistically. Also, the relationship of relative concentration and relative humidity was not significant. Mass concentration and relative concentration were 5.31±5.22 mg/m3 and 162±163 CPM (Mean±Standard deviation) respectively. The range of mass concentration was 1.22-22.69 mg/mt relative concentration 16-628 CPM. The relationship of mass concentration and relative concentration was not significnat in these ranges.
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KEYWORD
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