한국입자에어로졸학회지 (Particle and aerosol research)

  • 제17권1호
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  • Pages.1-8
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  • 2021
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  • 1738-8716(pISSN)
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  • 2287-8130(eISSN)
한국입자에어로졸학회 (Korean Association for Particle and Aerosol Research)
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연탄재 처리 환경미화원의 분진 및 호흡성 석영 노출

Occupational exposure to dust and respirable quartz in coal briquettes ash handling worker

  • 김부욱 (근로복지공단 직업환경연구원)
  • Kim, Boowook (Institute of Occupation and Environment, Korea Workers' Compensation and Welfare Service)
  • 투고 : 2021.01.07
  • 심사 : 2021.03.16
  • 발행 : 2021.03.31
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초록

The purpose of this study is to assess respirable crystalline silica (RCS) exposure levels in workers who collect and dispose used coal briquette ash (CBA) in sanitation companies that are subcontracted by one medium-sized local government on the collection of municipal household waste (MHW), and to analyze the quartz content in CBA. When the CBA powder that undergone specialized pretreatment in several steps were subjected to mineral identification and quantitative analysis using X-ray diffraction (XRD), it was found that quartz represented 18%, and in addition, mullite, and plagioclase were included. For two CBA collectors, samples were collected by the personal sampling evaluation method. After respirable dust was collected in accordance with the National Institute for Occupational Safety and Health 7500 method, the concentration of quartz was analyzed using XRD. Meanwhile, a portable real-time dust monitor (Sidepak AM520, TSI Inc., USA) was also used to observe the dust exposure level for each time zone and job task. The RCS exposure level of one worker was as high as 0.024 mg/㎥, which was the American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Values (TLV) level. The other worker also exhibited a concentration of 0.013 mg/㎥, which was more than half of TLV. The Sidepak results revealed that the work of collecting CBA and loading it onto a vehicle was hardly exposed to the dust of a significant level. It was found, however, that the work of transferring the collected CBA to a container through a conveyor belt was exposed to a very high average respirable dust concentration of 2.238 mg/㎥. The results of this study confirmed that quartz, which is crystalline silica and a carcinogen, is contained in CBA, one of municipal household waste (MHW), in high concentration. It was also confirmed that workers are exposed to high RCS concentrations while transferring collected CBA into a container. Although each local government in South Korea handles CBA in different ways, it is imperative to investigate the CBA exposure level of sanitation workers and improve their working conditions.

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참고문헌

  1. Bhaskar, R., Li, J., and Xu, L. (1994). A comparative study of particle size dependency of IR and XRD methods for quartz analysis, American Industrial Hygiene Association Journal, 55(7), 605-609. https://doi.org/10.1080/15428119491018682
  2. Fleming, L.E., Bean, J.A., Danits, M., John, N., and Rogers, J. (2002). Solid waste workers: occupational exposures and health, The Journal of Solid Waste Technology and Management, 28(2), 79-96.
  3. Government Announcement, joint government departments (2018). How to improve waste collection worker's safety, https://www.gov.kr/portal/ntnadmNews/1317481 (Korean).
  4. IARC (2012). Diesel and gasoline engine exhausts and some nitrogenes, International Agency for Research on Cancer, Lyon, France.
  5. IARC (1997). Silica, some silicates, coal dust and paraaramid fibrils, IARC Monographs on the Evaluation of Carcinogenic Risks to Humans, No. 68, 1-475.
  6. Jeong, I., Ryu, I., Kim, B., Park, I., Won, J.U., Kim, E.A., Kim, I., and Roh, J. (2013). Two cases of lung cancer in foundry workers, Annals of Occupational and Environmental Medicine, 25, 16. https://doi.org/10.1186/2052-4374-25-16
  7. Kim, B., Kim, D., Kim, H.R., and Choi, B.S. (2019). Exposure assessment of crystalline silica in diatomite powder handling workplace with acute silicosis, Journal of Korean Society of Occupational and Environmental Hygiene, 29(3), 271-277. https://doi.org/10.15269/JKSOEH.2019.29.3.271
  8. Kim, S.H., Bae, H.J., Jung, J.H., and Phee, Y.G. (2014). Particle size-related dust and quartz concentration of stone grinding operations, Journal of Korean Society of Occupational and Environmental Hygiene, 24(4), 462-470. https://doi.org/10.15269/JKSOEH.2014.24.4.462
  9. Kim J.B., Kim, D., Noh, S., Yoon, K.H., Park, D., Lee, J.J., and Kim, J. (2020). Estimation of PM2.5 correction factor for optical particle counter in ambient air, Particle and Aerosol Research, 16(2), 49-59.
  10. Kim, B., Choi, S., and Shin, J. (2017a). Study on the ratio and concentration of respirable dust in the workplace, Occupational Lung Diseases Institute, Korea Workers' Compensation and Welfare Service. Report No. Research-2017-라-12.
  11. Kim, S.W., Lee, G.H., Phee, Y.G., Yang, W.H., Ha, W., and Park, H. (2017b). Exposure of outdoor workers to particulate matter in construction sites, Journal of Korean Society of Occupational and Environmental Hygiene, 27(1), 46-58. https://doi.org/10.15269/JKSOEH.2017.27.1.46
  12. Kim, H.R., Kim, B., Jo, B.S., and Lee, J.W. (2018). Silica exposure and work-relatedness evaluation for occupational cancer in Korea, Annals of Occupational and Environmental Medicine, 30, 4. https://doi.org/10.1186/s40557-018-0216-1
  13. Lee, K.H., Jung, H.J, Park, D.U., Ryu, S.H., Kim, B., Ha, K.C., Kim, S., and Yi, G. (2015). Occupational exposure to diesel particulate matter in municipal household waste workers, PLoS ONE, 10(8), e0135229. https://doi.org/10.1371/journal.pone.0135229
  14. Park, D., Lee, K., Ryu, S., Kim, S., Yoon, C., and Ha, K. (2013). Characteristics of particulate matter generated while handling municipal household waste, Journal of Occupational Health, 55(6), 503-510. https://doi.org/10.1539/joh.13-0166-FS
  15. Park, H., Hwang, E., Jang, M., and Yoon, C. (2020). Exposure assessment of elemental carbon, polycyclic aromatic hydrocarbons and crystalline silica at the underground excavation sites for top-down construction buildings, PLoS ONE, 15(9), e0239010. https://doi.org/10.1371/journal.pone.0239010
  16. Poulsen, O.M., Breum, N.O., Ebbehoj, N., Hansen, A.M., Ivens, U.I., Lelieveld, D.van, Malmros, P., Matthiasen, L., Nielen, B., Nielen, E., Schibye, B., Skov, T., Stenbaek, E., and Wilkins, K. (1995). Collection of domestic waste, review of occupational health problems and their possible causes, Science of the Total Environment, 170, 1-19. https://doi.org/10.1016/0048-9697(95)04524-5
  17. Shin, J., Kim, B., Lee, J., Jung, J.S., Shin, Y.C., and Lee, K. (2021). Exposure assessment of elemental carbon, ultrafine particles, and crystalline silica at highway toll booths, Environmental Engineering Research, 26(5), 200380. https://doi.org/10.4491/eer.2020.380
  18. Shin, Y.C., Choi, B.S., Lee, B.K., Yi, G.Y., Lee, J.T. Lee, J.S., Lee, J.O., Kim, K.W., Kim, T.K., Go, K.S., and Chung, H.K. (2002). Exposure assessment of air contaminants by type of mines in Korea focused on carcinogenic substances, Journal of Korean Society of Occupational and Environmental Hygiene, 12(2), 95-105.
  19. Tulepov, M.I., Sassykova, L.R., Kerimkulova, A.R., Tureshova, G.O., Tolep, D.M., Zhapekova, A.O., Spanova, G.A., Abdrakova, F.Yu., and Mansurov, Z.A. Preparation of coal briquettes and determination of their physical and chemical properties, Oriental Journal Chemistry, 35(1), 180-185. https://doi.org/10.13005/ojc/350120
  20. Zilaout, H,. Houba, R., and Kromhout, H. (2020). Temporal trends in respirable dust and respirable quartz concentrations within the European industrial minerals sector over a 15-year period (2002-2016), Occupational and Environmental Medicine, 77(4), 268-275. https://doi.org/10.1136/oemed-2019-106074