Journal of Korean Society of Occupational and Environmental Hygiene (한국산업보건학회지)

Korean Industrial Hygiene Association (한국산업보건학회)
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Exposure Assessment of Airborne Dusts in the Cement Manufacturing and Handling Industries

시멘트 제조·취급사업장에서 발생하는 공기 중 분진의 노출평가

  • Received : 2017.12.03
  • Accepted : 2017.12.23
  • Published : 2017.12.30
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Abstract

Objectives: The purpose of this study was to evaluate concentrations in airborne total and respirable dusts in the cement manufacturing and handling industries. Methods: Fifty-three total dust and 42 respirable dustsamples were collected from 24 work places. Total dust samples were collected using a three-stage cassette. Respirable dust samples were collected using a cyclone equipped with a 37 mm, $5{\mu}m$ pore size PVC filter. Results: The geometric means of the dust concentrations were $0.10mg/m^3$ and $0.08mg/m^3$ in total dust and respirable dust, respectively. The Korean Occupational Exposure Limit($10mg/m^3$) was not exceeded, but the rate of exceeding the American Conference of Governmental Industrial Hygienist(ACGIH) Threshold Limit Value($1mg/m^3$) was 16.7%. Conclusion: When measuring the level of dust at cement manufacturers, the airborne concentration of respirable dust should be evaluated. In order to protect the health of workers exposed to cement dust, it is necessary to actively consider strengthening the Korean Occupational Exposure Limit.

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