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KMID : 0950020050310020099
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Journal of Health Science & Medical Technology
2005 Volume.31 No. 2 p.99 ~ p.102
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A study on the removal of formaldehyde risk
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Kim Young-Hwan
Choi Dal-Woong
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Abstract
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Mutiple chemical sensitivity (MCS) is a disease of complex etiology involving the central nervous system (CNS), respiratory and skin disorder. MCS symptoms reported by occupants of new or renewal buildings, termed the sick building syndrome (SBS) include irritation of the eyes, nose and throat, headache, nervousness and respiratory distress. Form??aldehyde (HCHO) is a toxic and irritant indoor air pollutant found at relatively high concentrations in new house, schools and offices in developed countries. Exposure to HCHO elicits a variety of allergic signs and symptoms and irritates the upper respiratory tract. According to the guidelines for indoor air environment proposed by World Health Organi??zation (WHO) and the Ministry of Health, Labor and Welfare, Japan, the average level of HCHO in homes should be less than 0.08 ppm. However, the level of HCHO exceeds 0.08 ppm in many new or recently renewal buildings. The prevention and counterplan of the HCHO’s harm??fulness should be deal with urgently. Therefore, we explored the ability of charcoal to absorb and remove HCHO gas emitted from closed environments. Constant HCHO concentrations were maintained in artificial chamber for 2 days. The concentration of HCHO in the chamber was measured using 2,4-dinitrophenylhydrazine cartridge. Charcoal effectively eliminated HCHO in the chamber and decreased HCHO-induced toxicity in mice. This effect of charcoal persisted for 2 days. Present study suggests that charcoal can be used to prevent MCS.
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KEYWORD
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formaldehyde, charcoal, removal
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