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Defining Area of Damage of 2012 Hydrofluoric Acid Spill Accident in Gumi, Korea
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 Title & Authors
Defining Area of Damage of 2012 Hydrofluoric Acid Spill Accident in Gumi, Korea
Koh, Dohyun; Kim, Jeongsoo; Choi, Kyungho;
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 Abstract
Objectives: On September 27, 2012, leakage of anhydrous hydrofluoric acid occurred in a chemical plant in the Gumi National Industrial Complex. Following the accident, local factory workers and residents complained of abnormal health conditions. In addition, visual discolorations were widely observed in crops and trees in surrounding areas. The main objectives of the present study were to identify the area that was affected by the spill using data obtained from plants, soil, and water samples after the accident. Methods: Fluoride concentrations were analyzed in pine tree needles, soil, nearby streams, ponds and reservoirs collected from an area within a radius of three kilometers from the plant where the leak occurred. Fluoride concentrations in the air at the time of leakage were then estimated from fluoride concentrations that were measured in the pine tree needles. A Kriged map was developed to describe the spatial distribution of hydrofluoric acid at the time of the leakage and was compared with the area designated as a Special Disaster Zone by the government. Results: The Special Disaster Zone did not include all the affected area that was estimated by the Kriged map. Analytical results of the environmental samples also supported this discrepancy. Conclusion: Using plants, atmospheric concentrations of fluoride at the time of the leakage could be estimated. For the area that was identified as affected, further public health risk assessment and environmental risk assessment should be considered. Also, in the absence of air monitoring at the time of leakage, studies employing plants may be conducted in order to better understand the spatial extent and severity of the contamination.
 Keywords
Environmental impact;Fluoride;Hydrofluoric acid;Hydrofluoric acid spill;Kriging;
 Language
Korean
 Cited by
1.
용출시험을 통한 불산 누출사고지역의 토양 내 불소(F)의 거동특성,김도영;이준석;권은혜;이현아;윤혜온;이상훈;

대한환경공학회지, 2015. vol.37. 4, pp.234-239 crossref(new window)
1.
Estimation of the Concentration of HF in the Atmosphere Using Plant Leaves Exposed to HF in the Site of the HF Spill, Journal of Korean Society for Atmospheric Environment, 2016, 32, 3, 248  crossref(new windwow)
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