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نویسندگان مقالات پربازدید :
ساختمان و محیط زیست
جزئیات رویداد
همایش ، رویداد ، ژورنال
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حوزه های تحت پوشش رویداد

  • (evaluation on potential for assessing indoor formaldehyde using biosensor system based on swimming behavior of japanese medaka (oryzias latipes

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    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 553
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     in order to develop an early-warning biosensor system for predicting the impact on health of long-term and low-level exposure to indoor chemical compounds, e.g. volatile organic compounds (vocs), we evaluated the potential for assessing indoor air quality using the biosensor system based on the swimming behavior of japanese medaka (oryzias latipes) as an indicator of indoor air quality in the beginning. as a technology to dissolve chemical compounds into water efficiently, a micro bubble generator was introduced. the test chemical was formaldehyde which is a representative of chemical compounds existing indoors. the result of the measuring solubility of formaldehyde was that formaldehyde concentration in water was raised to 0.12 mg/l when 1.0 mg/m3 of formaldehyde in air was bubbled for approximately 44 h. the correlation between the 0.1 mg/l of formaldehyde in water, which is roughly equivalent to 0.83 mg/m3 of formaldehyde in air, and the swimming activities of medaka was investigated. the fish showed abnormal behavior compared to one under a control treatment, e.g. the body movement distance decreased and the duration time near the upper water column increased significantly. it was verified that it is possible to detect concentrations of formaldehyde of 0.83 mg/m3 in indoor air using this proposed biosensor system.

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