Safety and Health at Work

  • 제13권4호
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  • Pages.493-499
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  • 2022
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  • 2093-7911(pISSN)
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  • 2093-7997(eISSN)
산업안전보건연구원 (Occupational Safety and Health Research Institute, Korea Occupational Safety and Health Agency)
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A Pilot Establishment of the Job-Exposure Matrix of Lead Using the Standard Process Code of Nationwide Exposure Databases in Korea

  • Ju-Hyun Park (Department of Statistics, Dongguk University) ;
  • Sangjun Choi (Graduate School of Public Health and Healthcare Management, The Catholic University of Korea) ;
  • Dong-Hee Koh (Department of Occupational and Environmental Medicine, International St. Mary's Hospital, Catholic Kwandong University) ;
  • Dae Sung Lim (Hansung Health and Safety Technology Co., Ltd.) ;
  • Donguk Park (Department of Environmental Health, Korea National Open University) ;
  • Hwan-Cheol Kim (Department of Occupational and Environmental Medicine, Inha University) ;
  • Sang-Gil Lee (Occupational Safety and Health Research Institute, Korea Occupational Safety and Health Agency) ;
  • Jihye Lee (Occupational Safety and Health Research Institute, Korea Occupational Safety and Health Agency) ;
  • Ji Seon Lim (Department of Statistics, Dongguk University) ;
  • Yeji Sung (Graduate School of Public Health and Healthcare Management, The Catholic University of Korea) ;
  • Kyoung Yoon Ko (Graduate School of Public Health and Healthcare Management, The Catholic University of Korea)
  • 투고 : 2022.01.04
  • 심사 : 2022.09.01
  • 발행 : 2022.12.30
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초록

Background: The purpose of this study is to construct a job-exposure matrix for lead that accounts for industry and work processes within industries using a nationwide exposure database. Methods: We used the work environment measurement data (WEMD) of lead monitored nationwide from 2015 to 2016. Industrial hygienists standardized the work process codes in the database to 37 standard process and extracted key index words for each process. A total of 37 standardized process codes were allocated to each measurement based on an automated key word search based on the degree of agreement between the measurement information and the standard process index. Summary statistics, including the arithmetic mean, geometric mean, and 95th percentile level (X95), was calculated according to industry, process, and industry process. Using statistical parameters of contrast and precision, we compared the similarity of exposure groups by industry, process, and industry process. Results: The exposure intensity of lead was estimated for 583 exposure groups combined with 128 industry and 35 process. The X95 value of the "casting" process of the "manufacture of basic precious and non-ferrous metals" industry was 53.29 ㎍/m3, exceeding the occupational exposure limit of 50 ㎍/m3. Regardless of the limitation of the minimum number of samples in the exposure group, higher contrast was observed when the exposure groups were by industry process than by industry or process. Conclusion: We evaluated the exposure intensities of lead by combination of industry and process. The results will be helpful in determining more accurate information regarding exposure in lead-related epidemiological studies.

키워드

과제정보

This study was supported by the Occupational Safety and Health Research Institute grant (2021-OSHRI-795) funded by the Republic of Korea Occupational Safety and Health Agency and by the research program of Dongguk University, 2020 (JHP).

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