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

Korean Industrial Hygiene Association (한국산업보건학회)
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Identification of Predominant Bacteria and Fungi in the Industry Treating Soluble Metal Working Fluids

금속가공유 취급 업종에서 우점하는 세균 및 진균의 정성평가

  • Park, Hae Dong (Occupational Safety and Health Research Institute, KOSHA) ;
  • Park, Dongjin (Occupational Safety and Health Research Institute, KOSHA) ;
  • Park, Hyunhee (Occupational Safety and Health Research Institute, KOSHA)
  • 박해동 (한국산업안전보건공단 산업안전보건연구원) ;
  • 박동진 (한국산업안전보건공단 산업안전보건연구원) ;
  • 박현희 (한국산업안전보건공단 산업안전보건연구원)
  • Received : 2014.12.01
  • Accepted : 2014.12.19
  • Published : 2014.12.31
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Abstract

Objectives: The objective of this study is to analyze the predominant microorganisms in the industry treating MWFs(Metal working fluids). Methods: The bacteria and fungi were collected by agar plate impaction and bulk MWFs in storage tank at 54 sites in 9 shops in South Korea. The dominant bacteria and fungi isolated from agar media were identified by fatty acid analysis and morphological analysis, respectively. Results: Totally 111 dominant bacteria were identified in the process, outdoor, and bulk MWFs. The predominant bacterial genus was Micrococcus and Bacillus in the process and outdoor, Pseudomonas in bulk MWF. Among the identified 119 strains of fungi, Cladosporium and Penicillium genus were dominated. The ratios of bacteria designated biosafety level 2 and 1 were 30% and 21%, respectively. Conclusions: This study has investigated the dominant microorganisms in soluble MWF using industry. And it was useful that the qualitative evaluation method along with quantitative analysis for better understanding of the biological factors in the work environment.

Keywords

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