Measures for Reducing the Levels of Chemical Compounds in the Indoor Air of Schools
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- TAKEKUMA Mikiko
- Saitama Institute of Public Health
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- OHMURA Atsuko
- Saitama Institute of Public Health
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- SAITO Koichi
- Hoshi University
Bibliographic Information
- Other Title
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- 学校施設における室内空気中化学物質濃度の低減化対策
- 学校施設における室内空気中化学物質濃度の低減化対策--換気の効果
- ガッコウ シセツ ニ オケル シツナイ クウキチュウ カガク ブッシツ ノウド ノ テイゲンカ タイサク カンキ ノ コウカ
- -A Study of the Effect of Ventilation-
- -換気の効果-
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Abstract
We studied the effect of ventilation as a measure for decreasing the levels of two aldehydes and forty-six volatile organic compounds (VOCs) in the indoor air of schools. A technical high school in Saitama Prefecture was chosen as the investigation facility during a long summer vacation. The levels of chemical compounds in the indoor air were measured prior to and after ventilating the classrooms.<BR>Prior to ventilation, formaldehyde levels exceeding the guideline values for indoor air quality were detected in four of the five classrooms that were measured. After ten minutes of passive ventilation the formaldehyde levels in the classrooms decreased by 72%, bringing the levels below the guideline values for indoor air quality. The acetaldehyde levels in the classrooms decreased by 50%.<BR>In the windowless laboratory aldehyde levels were reduced using an electric fan for mechanical ventilation.<BR>For VOCs, 15-17 compounds were detected in the classrooms and 21 compounds were detected in the laboratory prior to ventilation. After ventilation only 2-5 compounds were detected in each room, and in all cases the levels decreased considerably compared to the levels before ventilation. As a result, ventilation decreased the total volatile organic compounds (TVOC) by approximately 80-90%.
Journal
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- Indoor Environment : Journal of Society of Indoor Environment, Japan
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Indoor Environment : Journal of Society of Indoor Environment, Japan 8 (1), 35-39, 2005
Society of Indoor Environment, Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390001204480067200
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- NII Article ID
- 130001931902
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- NII Book ID
- AA11443020
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- ISSN
- 21864314
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- NDL BIB ID
- 8784571
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- CiNii Articles
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- Abstract License Flag
- Disallowed