| Project/Area Number |
59460156
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| Research Category |
Grant-in-Aid for General Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
建築環境・環境工学
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| Research Institution | The Institute of Public Health |
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Principal Investigator |
IRIE Tatehisa Head of the Building Sanitation Section, Dept. of Architectural Hygiene Engineering and Housing, IPH, その他, その他 (30077177)
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| Co-Investigator(Kenkyū-buntansha) |
SUGAWARA Fumiko Assistant Professor of Faculty Life Science, Shohoku Junior College, 生活科学科, 講師
SASAKI Akihiko Researcher, Dept, of Physiological Hygiene, IPH, 生理衛生学部, 研究員 (70150175)
KOMINE Hiromi Chief Researcher, Dept. of Architectural Hygiene Engineering and Housing, IPH, 建築衛生学部, 主任研究官 (20114481)
IKEDA Koichi Chife Researcher, Dept. of Architectural Hygiene Engineering and Housing, IPH, 建築衛生学部, 主任研究官 (90100057)
YOSHIZAWA Susumu Chief of Dept. of Architectural Hygiene Engineering and Housing,IPH, 建築衛生学部, 部長 (20077176)
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| Project Period (FY) |
1984 – 1986
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| Project Status |
Completed (Fiscal Year 1986)
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| Budget Amount *help |
¥6,600,000 (Direct Cost: ¥6,600,000)
Fiscal Year 1986: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 1985: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 1984: ¥4,400,000 (Direct Cost: ¥4,400,000)
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| Keywords | Ventilation Requirement / Indicator of Indoor Air Pollution / Environmental Standard / Allowable Concentration / Pollutants' Generation / Sick Building / シックビルディング / 二酸化炭素 |
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| Research Abstract |
After three years' study on the indoor air environmental indicators to determine ventilation requirement, following results have been obtained.
1. Through field experiments in office buildings:
1) <CO_2> concentration is always an appropriate and stable indicator of indoor air pollution.
2) Airborne particulate matter comes mainly from smoking and plays an important roll as an indicator in some cases, but it is not always suitable, because its generation is usually affected by occupants' random smoking behavior.
3) CO and <NO_x> are not so appropriate indicators either in buildings for general use.
4) Large particulate matter including micro-organisms is found to have nothing to do with outdoor air volume.
5) Odor intensity is hard to evaluate and only available as an indicator when and where <CO_2> concentration shows remarkably high value.
2. Through the field experiments in dwellings:
1) <CO_2> is the most appropriate indicator both with and without unvented gas-and kerosene-fired appliances.
2) With unvented burner CO and <NO_x> should be considered as poisons rather than environmental indicators.
3) Formaldehyde within newly built homes will become an indicator and Radon gas within airtight buildings, as well.
3. Through laboratory experimental study:
1) When smoking is only one source of indoor pollution, concentrations of CO, SPM and <NO_x> correlates highly with each other. Any of them may be used as an indicator where smoking is heavy.
2) In room with unvented kerorene heater total hydrocarbons may be used as an indicator because its concentration reflects the odor intensity.
As a conclusion it has been found that <CO_2> is in any case the most appropriate indicator and each one of other important pollutants might be used, if necessary, to determine the ventilation requirement in buildings.
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