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

Korean Industrial Hygiene Association (한국산업보건학회)
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Evaluationof Exposure Levels and Detection Rate of Hazardous Factors in the Working Environment, Focused on the Aluminum Die Casting Process in the Automobile Manufacturing Industry

자동차 부품제조 사업장의 유해인자 노출 농도수준 및 검출율 - 알루미늄 다이캐스팅 공정을 중심으로 -

  • Lee, Duk-Hee (Department of Environmental and Industrial Health, Graduate School of Catholic University of Pusan) ;
  • Moon, Chan-Seok (Department of Environmental and Industrial Health, Graduate School of Catholic University of Pusan)
  • 이덕희 (부산가톨릭대학교대학원 산업안전보건학과) ;
  • 문찬석 (부산가톨릭대학교대학원 산업안전보건학과)
  • Received : 2018.03.04
  • Accepted : 2018.03.26
  • Published : 2018.03.30
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Abstract

Objectives: This study examines exposure to hazardous substances in the working environment caused by exposure to toxic substances produced in the aluminum die casting process in the automobile manufacturing industry. Materials and Methods: The exposure concentration levels, detection rates and time-trend of 15 hazardous factors in the aluminum die casting process over 10 years(from 2006 to 2016) were used as a database. Results: The study found that hazardous factors in the aluminum die casting process were mostly metals. The rate for detected samples was 70.6%(405 samples), and that for not detected samples was 29.4%. The noise for an eight-hour work shift showed a 49.7% exceedance rate for TLV-TWA. Average noise exposure was 89.0 dB. The maximum exposure level was 105.1 dB. Conclusion: The high numbers of no-detection rates for hazardous substance exposure shows that there is no need to do a work environment measurement. Therefore, alternatives are necessary for improving the efficiency and reliability of the work environment measurement. Moreover, to prevent noise damage, reducing noise sources from automation, shielding, or sound absorbents are necessary.

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