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디클로로메탄 사용 세척공정의 국소배기장치 설치 후 노출농도 변화

Change in Exposure Concentration in the Cleaning Process after Installing a Local Exhaust System

  • 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)
  • 투고 : 2023.08.09
  • 심사 : 2023.09.27
  • 발행 : 2023.09.30

초록

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.

키워드

참고문헌

  1. Korea Occupational Safety and Health Agency(KOSHA). Working Environment Measurement and Analysis Technical Guidelines for Dichloromethane (KOSHA GUIDE A-19-2019). 2019
  2. Korea Occupational Safety and Health Agency(KOSHA). Transmission of cases of acute poisoning from dichloromethane handling. 2022. Available from: URL: https://www.kosha.or.kr/kosha/report/notice.do?mode=view&boardNo=505&articleNo=428364&attachNo=
  3. Occupational Safetr & Health Research Institute(OSHRI). Health examination for workers Practical guidelines 3 health impairment by Hazardous factors. 2022
  4. Jung K-C. Methylene chloride. In: Occupational Toxicology Handbook. Seoul: Shinkwang Publication; 1995. p. 604