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

Korean Industrial Hygiene Association (한국산업보건학회)
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Change in Exposure Concentration in the Cleaning Process after Installing a Local Exhaust System

디클로로메탄 사용 세척공정의 국소배기장치 설치 후 노출농도 변화

  • Myung Hwa Cho (Institute for Industrial Environment anf Health) ;
  • Seung gi Kim (Institute for Industrial Environment anf Health) ;
  • Hyun Soo Kim (Department of Safety Engineering, Seoul National University of Science and Technology)
  • Received : 2023.08.09
  • Accepted : 2023.09.27
  • Published : 2023.09.30
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Abstract

Objectives: The purpose of this study was to examine the change in exposure concentration in the cleaning process after installing a local exhaust system. Methods: Dichloromethane measurement was conducted according to the KOSHA Guide (A-19-2019). Results: After the local exhaust device was installed, a total of three measurements were conducted, including temporary work environment measurements, and all of the measurements did not exceed the DCM exposure standard, but were more than 50% of the DCM Time Weighted Average((8-TWA) Conclusions: It is thought that the local ventilation system of a small business needs not only support for the initial installation cost, but also educational support for maintaining the performance of the local ventilation system and support for consumables (adsorbents, filters, etc.) that incur periodic costs.

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References

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