한국환경보건학회지 (Journal of Environmental Health Sciences)

  • 제39권4호
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  • Pages.346-353
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  • 2013
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  • 1738-4087(pISSN)
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  • 2233-8616(eISSN)
한국환경보건학회 (Korean Society of Environmental Health)
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구미 불산 누출사고 지점 주변 식물의 불소화합물 농도 분포 및 공기 중 불화수소 농도 추정에 관한 연구

Study on the Distribution of Fluorides in Plants and the Estimation of Ambient Concentration of Hydrogen Fluoride Around the Area of the Accidental Release of Hydrogen Fluoride in Gumi

  • 구슬기 (원진재단부설 노동환경건강연구소) ;
  • 최인자 (원진재단부설 노동환경건강연구소) ;
  • 김원 (원진재단부설 노동환경건강연구소) ;
  • 선옥남 (원진재단부설 노동환경건강연구소) ;
  • 김신범 (원진재단부설 노동환경건강연구소) ;
  • 이윤근 (원진재단부설 노동환경건강연구소)
  • Gu, Seulgi (Wonjin Institute for Occupational and Environmental Health) ;
  • Choi, Inja (Wonjin Institute for Occupational and Environmental Health) ;
  • Kim, Won (Wonjin Institute for Occupational and Environmental Health) ;
  • Sun, Oknam (Wonjin Institute for Occupational and Environmental Health) ;
  • Kim, Shinbum (Wonjin Institute for Occupational and Environmental Health) ;
  • Lee, Yungeun (Wonjin Institute for Occupational and Environmental Health)
  • 투고 : 2013.03.20
  • 심사 : 2013.07.19
  • 발행 : 2013.08.31
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초록

Objectives: The goal of this study is to identify the distribution of the foliar fluorine content of vegetation surrounding the area where hydrofluoric acid was accidently released in Gumi, Gyeongsangbuk-do on September 27, 2012. In addition, it also aims to estimate the concentration of hydrogen fluoride in the air on the day of the accident. Methods: Samples of plant leaves were collected on October 7, 2012 within 1 km from the site where the accident occurred. These samples were analyzed for soluble fluorine ion with an ion selective electrode. The ambient concentration of hydrogen fluoride was calculated using the fluoride content in the plant via the dose-rate equation (${\Delta}F$=KCT). Results: The arithmetic and geometric means of the concentrations were 2158.2 and 1183.7mg F $kg^{-1}$ for leaves and, 2.4 and 1.1 ppm HF for the air, respectively. The highest concentration of hydrogen fluoride in the air was 14.7 ppm, which is higher than the maximum concentration reported by the government (1 ppm) and the exposure limit (ceiling, 3 ppm). The concentrations of both fluorine and hydrogen fluoride decreased with increasing distance from the accident site and showed a significant decrease outside of a 500m radius from the site (p <0.05). Conclusions: The area around the accident site was highly polluted with hydrogen fluoride according to the results of this study. Considering the persistency of hydrogen fluoride in the environment, long-term monitoring and environmental impact assessment should be pursued.

키워드

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피인용 문헌

  1. Accident analysis of the Gumi hydrogen fluoride gas leak using CFD and comparison with post-accidental environmental impacts vol.48, 2017, https://doi.org/10.1016/j.jlp.2017.05.001
  2. Large Eddy Simulation for the Prediction of Unsteady Dispersion Behavior of Hydrogen Fluoride vol.30, pp.1, 2015, https://doi.org/10.14346/JKOSOS.2015.30.1.014
  3. Diagnostic assessment on vegetation damage due to hydrofluoric gas leak accident and restoration planning to mitigate the damage in a forest ecosystem around Hube Globe in Gumi vol.17, pp.1, 2015, https://doi.org/10.17663/JWR.2015.17.1.045
  4. Estimation of the Concentration of HF in the Atmosphere Using Plant Leaves Exposed to HF in the Site of the HF Spill vol.32, pp.3, 2016, https://doi.org/10.5572/KOSAE.2016.32.3.248
  5. Alternative Risk Assessment for Dangerous Chemicals in South Korea Regulation: Comparing Three Modeling Programs vol.15, pp.8, 2018, https://doi.org/10.3390/ijerph15081600