| Project/Area Number |
16590484
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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 | Showa University |
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Principal Investigator |
NAKADATE Toshio Showa University School of Medicine, Department of Hygiene, Professor, 医学部, 教授 (60155760)
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| Co-Investigator(Kenkyū-buntansha) |
TAKAHASHI Eiko Showa University School of Medicine, Department of Hygiene, Associate Professor, 医学部, 助教授 (70271369)
YAMANO Yuko Showa University School of Medicine, Department of Hygiene, Lecturer, 医学部, 講師 (30167580)
ADACHI Chieko Showa University School of Medicine, Department of Hygiene, Research associate, 医学部, 助手 (50276557)
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| Project Period (FY) |
2004 – 2005
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| Project Status |
Completed (Fiscal Year 2005)
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| Budget Amount *help |
¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 2005: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 2004: ¥2,100,000 (Direct Cost: ¥2,100,000)
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| Keywords | Magnetopneumography / magneric dust / pulmonary function / occupational exposure / pulmonary fibrosis / 磁性粉じん / 呼吸機能 / 肺線維症 |
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| Research Abstract |
It will be quite useful for the primary prevention of pneumoconiosis caused by mineral dust inhalation to estimate the amount of dust accumulated in the lung. Magnetopneumography (MPG) was first developed about 30 years ago as one of those methods, but has not been utilized in so many studied because it is difficult to bring the large device to worksites. If the device becomes smaller and portable, MPG measurements will be used more widely in various occupational settings.
Therefore we tried to make the device smaller and easier to bring, in order to use it in actual worksites. We also tried to improve the measurement procedure for more accurate and sensitive testing. Our portable MPG device is small enough to bring to each worksite of workers and can utilize conventional 100 voltage electric source. The accuracy and sensitivity of this device was confirmed in the measurements of arc welders. Thus it is expected to use this portable device in the exposure assessment and health risk assessment in arc welders.
In order to use the device in various works other than welding, we tested the magnetic strength of several types of dusts. As one of those is the printing toner dust which showed 5-30 % of magnetic strength of welding fume. At this moment of time, the sensitivity of our device may not be sufficient for the measurement of toner workers because the work environment of toner workers is maintained quite well. We will be able to conduct MPG measurement in toner workers by further improvement of the device in its sensitivity and elimination of background noise.
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