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Modified Perfluorocarbon Tracer Method for Measuring Effective Multizone Air Exchange Rates

Author

Listed:
  • Naohide Shinohara

    (Research Institute of Science for Safety and Sustainability (RISS), National Institute of Advanced Industrial Science and Technology (AIST), 16-1 Onogawa, Tsukuba, Ibaraki 305-8569, Japan)

  • Toshiyuki Kataoka

    (The Chemicals Evaluation and Research Institute, Japan (CERI), 1600 Shimotakano, Sugito-machi, Kitakatsushika-gun, Saitama 345-0043, Japan)

  • Koichi Takamine

    (The Chemicals Evaluation and Research Institute, Japan (CERI), 1600 Shimotakano, Sugito-machi, Kitakatsushika-gun, Saitama 345-0043, Japan)

  • Michio Butsugan

    (Hitachi Chemical Co., Ltd., 13-1, Higashi-cho 4-chome, Hitachi-shi, Ibaraki 317-8555, Japan)

  • Hirokazu Nishijima

    (Sigma-Aldrich Japan K.K., 2-2-24, Higashi-Shinagawa, Shinagawa-ku, Tokyo 140-0002, Japan)

  • Masashi Gamo

    (Research Institute of Science for Safety and Sustainability (RISS), National Institute of Advanced Industrial Science and Technology (AIST), 16-1 Onogawa, Tsukuba, Ibaraki 305-8569, Japan)

Abstract

A modified procedure was developed for the measurement of the effective air exchange rate, which represents the relationship between the pollutants emitted from indoor sources and the residents’ level of exposure, by placing the dosers of tracer gas at locations that resemble indoor emission sources. To measure the 24-h-average effective air exchange rates in future surveys based on this procedure, a low-cost, easy-to-use perfluorocarbon tracer (PFT) doser with a stable dosing rate was developed by using double glass vials, a needle, a polyethylene-sintered filter, and a diffusion tube. Carbon molecular sieve cartridges and carbon disulfide (CS 2 ) were used for passive sampling and extraction of the tracer gas, respectively. Recovery efficiencies, sampling rates, and lower detection limits for 24-h sampling of hexafluorobenzene, octafluorotoluene, and perfluoroallylbenzene were 40% ± 3%, 72% ± 5%, and 84% ± 6%; 10.5 ± 1.1, 14.4 ± 1.4, and 12.2 ± 0.49 mL min −1 ; and 0.20, 0.17, and 0.26 μg m –3 , respectively.

Suggested Citation

  • Naohide Shinohara & Toshiyuki Kataoka & Koichi Takamine & Michio Butsugan & Hirokazu Nishijima & Masashi Gamo, 2010. "Modified Perfluorocarbon Tracer Method for Measuring Effective Multizone Air Exchange Rates," IJERPH, MDPI, vol. 7(9), pages 1-11, August.
    • Handle: RePEc:gam:jijerp:v:7:y:2010:i:9:p:3348-3358:d:9405
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