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[Design and Evaluation of Miniature Cyclones for Dust Indicators].
Myojo, Toshihiko; Oyabu, Takako; Tsutsui, Takao; Murata, Masaru; Nagoya, Toshio.
Afiliação
  • Myojo T; Department of Environmental Health Engineering, Institute of Industrial and Ecological Sciences, University of Occupational and Environmental Health, Japan.
  • Oyabu T; Department of Environmental Health Engineering, Institute of Industrial and Ecological Sciences, University of Occupational and Environmental Health, Japan.
  • Tsutsui T; Department of Health Policy and Management, Institute of Industrial and Ecological Sciences, University of Occupational and Environmental Health, Japan.
  • Murata M; Faculty of Science and Engineering, Waseda University.
  • Nagoya T; Faculty of Science and Engineering, Waseda University.
J UOEH ; 41(4): 425-430, 2019.
Article em Ja | MEDLINE | ID: mdl-31866660
Dust indicators based on light scattering photometers are widely used to measure aerosol concentrations in work environments. These concentrations at workplaces in Japan are measured by these dust indicators and calibrated by mass concentration in order to control workers' exposure to dust. The mass concentration in a specific point in a workplace is measured simultaneously with a dust indicator. The mass concentration of the respirable fraction of dust particles should be determined by the gravimetric method with low volume air samplers or other devices, but some dust indicators are not equipped with a size separator for respirable fraction, and we used to get unstable results at the calibration. In this study, we designed miniature cyclones for a dust indicator and evaluated their performances of respirable fraction and PM2.5 fraction.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Saúde Ocupacional / Local de Trabalho / Ar / Poeira / Exposição Ambiental Idioma: Ja Ano de publicação: 2019 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Saúde Ocupacional / Local de Trabalho / Ar / Poeira / Exposição Ambiental Idioma: Ja Ano de publicação: 2019 Tipo de documento: Article