Journal of Environmental Health Sciences (한국환경보건학회지)

Korean Society of Environmental Health (한국환경보건학회)
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Evaluation of Total, Water-soluble and Hexavalent Chromium Contents in Construction Materials(Concretes, Cements)

  • Choi, In-Ja (Wonjin Institute for Occupational and Environmental Health) ;
  • Yoon, Chung-Sik (School of Public Health, Seoul National University) ;
  • Choi, Sang-Jun (Wonjin Institute for Occupational and Environmental Health)
  • Published : 2007.12.31
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Abstract

The objective of the study is to determine the contents of total chromium, water-soluble chromium and hexavalent chromium in cements and concretes specimens taken from manufacturing or construction sites. Chromate is an allergen that is widespread in the environment and is richly contained in cements. Metals were extracted with microwave oven and analyzed by atomic absorption spectrometer. Hexavalent chromium was analysed by ion chromatography. The concentrations of total chromium, water-soluble chromium and hexavalent chromium in cements were $36.02{\sim}108.01,\;15.95{\sim}89.01\;and\;26.77{\sim}89.61\;mg/kg$, respectively. The concentrations of hexavalent chromium in cements were higher than 2 mg/kg, a maximum value recommended in Northern European Countries. The concentrations of total chromium, water-soluble chromium and hexavalent chromium in concretes were $17.44{\sim}76.25,\;0.98{\sim}17.71\;and\;ND{\sim}24.13\;mg/kg$, respectively. Especially Hexavalent chromium was detected only from concrete specimens from construction sites. It is oxidized or reduced status by environmental condition or surrounding materials.

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