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Chemosphere. 2015 Jan;119:577-582. doi: 10.1016/j.chemosphere.2014.07.043. Epub 2014 Aug 14.

Fluorine distribution in soil in the vicinity of an accidental spillage of hydrofluoric acid in Korea.

Author information

1
Department of Civil & Environmental Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Republic of Korea.
2
Seoul Center, Korea Basic Science Institute, 74 Inchon-ro, Sungbuk-gu, Seoul 136-713, Republic of Korea.
3
Seoul Center, Korea Basic Science Institute, 74 Inchon-ro, Sungbuk-gu, Seoul 136-713, Republic of Korea. Electronic address: dunee@kbsi.re.kr.

Abstract

This study assessed the status of fluorine (F) in soil in the vicinity of a spillage of anhydrous hydrofluoric acid in Korea. Gaseous hydrogen fluoride dispersed was suspected to have contaminated the surrounding soil environment. Total and water soluble F concentrations in soil within a 1 km radius of the spillage were determined. Total F concentrations (mean=222±70.1 mg kg(-1)) were lower than the Korean limit value (i.e., 400 mg kg(-1)) and several reported measurements of background F concentrations in soils except for a single outlying case. Soluble F concentrations ranged from 0.111 to 6.40 mg kg(-1) (mean=2.20±1.80 mg kg(-1)). A negative correlation between the soluble F concentration of soil and distance from the spillage was observed. This indicates that the soluble F concentration has a crucial role in fractionating the F concentration arising from a 'non natural input' i.e., the spillage. The F content of rice samples seemed to be significantly influenced by the soluble F concentrations of soils. Rice samples collected from the control and affected areas contained 41 mg kg(-1) and 578 mg kg(-1) of total F, respectively.

KEYWORDS:

Fluorine; Hydrofluoric acid; Hydrogen fluoride; Industrial accident; Soil

[Indexed for MEDLINE]

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