| Project/Area Number |
20590621
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Hygiene
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| Research Institution | University of Occupational and Environmental Health, Japan |
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Principal Investigator |
MYOJO Toshihiko University of Occupational and Environmental Health, Japan, 産業生態科学研究所, 教授 (00209959)
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| Co-Investigator(Kenkyū-buntansha) |
TANAKA Isamu 産業医科大学, 産業生態科学研究所, 名誉教授 (00038035)
OOYABU Takako 産業医科大学, 産業生態科学研究所, 助教 (20320369)
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| Co-Investigator(Renkei-kenkyūsha) |
ONO Mariko 労働安全衛生総合研究所, 上席研究員 (60333374)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2009: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2008: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | 産業衛生 / 作業環境計測 / カーボンナノチューブ / フラーレン / エアロゾル / ナノマテリアル / ナノ粒子 / カーボンモニター / 元素状炭素 |
|---|
| Research Abstract |
Nanomaterials such as carbon nanotubes and fullerenes have many beneficial characteristics as industrial materials, but also have risk on exposure to these nanomaterials. For safe production and handling of these nanomaterials, it is important to conduct a risk assessment that includes hazard assessment and exposure assessment. As part of the exposure assessment, we conducted experiments to qualify and quantify carbonaceous nanomaterials using an aerosol carbon analyzer. Several types of multi-walled carbon nanotubes (MWCNT) and other carbonaceous nanomaterials, such as single-walled carbon nanotubes (SWCNT), and ambient particulate matter were analyzed by this method on the basis of the elemental carbon (EC) concentration. Respirable dust is sampled using a Sioutas cascade impactor (SCI) for a certain volume of workplace air. The SCI can collect size-segregated particles having 5 kinds of aerodynamic diameters. EC in sampled particles are determined by the carbon analysis. The validity of this method was also confirmed by data of real work environment.
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