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Estimation of Ambient Dose Equivalent Rate Distribution Map Using Walking Survey Technique in Hirosaki City, Aomori, Japan

Author

Listed:
  • Worawat Poltabtim

    (Department of Radiation Science, Graduate School of Health Sciences, Hirosaki University, 66-1 Honcho, Hirosaki 036-8564, Aomori, Japan
    Institute of Radiation Emergency Medicine, Hirosaki University, 66-1 Honcho, Hirosaki 036-8564, Aomori, Japan
    Special Research Unit of Radiation Technology for Advanced Materials (RTAM), Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
    These authors contributed equally to this work.)

  • Saowarak Musikawan

    (Department of Radiation Science, Graduate School of Health Sciences, Hirosaki University, 66-1 Honcho, Hirosaki 036-8564, Aomori, Japan
    Institute of Radiation Emergency Medicine, Hirosaki University, 66-1 Honcho, Hirosaki 036-8564, Aomori, Japan
    These authors contributed equally to this work.)

  • Arkarapol Thumwong

    (Special Research Unit of Radiation Technology for Advanced Materials (RTAM), Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
    Department of Materials Science, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
    These authors contributed equally to this work.)

  • Yasutaka Omori

    (Institute of Radiation Emergency Medicine, Hirosaki University, 66-1 Honcho, Hirosaki 036-8564, Aomori, Japan
    The Research Center for Safety, Metrology, and Nuclear Quality Technology (PRTKMMN), Research Organization for Nuclear Energy, National Research and Innovation Agency of Indonesia (BRIN), JI. Lebak Bulus Raya No. 49, Jakarta Selatan 12440, DKI Jakarta, Indonesia)

  • Chutima Kranrod

    (Institute of Radiation Emergency Medicine, Hirosaki University, 66-1 Honcho, Hirosaki 036-8564, Aomori, Japan)

  • Masahiro Hosoda

    (Department of Radiation Science, Graduate School of Health Sciences, Hirosaki University, 66-1 Honcho, Hirosaki 036-8564, Aomori, Japan
    Institute of Radiation Emergency Medicine, Hirosaki University, 66-1 Honcho, Hirosaki 036-8564, Aomori, Japan)

  • Kiadtisak Saenboonruang

    (Special Research Unit of Radiation Technology for Advanced Materials (RTAM), Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
    Department of Applied Radiation and Isotopes, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand)

  • Shinji Tokonami

    (Institute of Radiation Emergency Medicine, Hirosaki University, 66-1 Honcho, Hirosaki 036-8564, Aomori, Japan
    The Research Center for Safety, Metrology, and Nuclear Quality Technology (PRTKMMN), Research Organization for Nuclear Energy, National Research and Innovation Agency of Indonesia (BRIN), JI. Lebak Bulus Raya No. 49, Jakarta Selatan 12440, DKI Jakarta, Indonesia)

Abstract

At present, much emphasis is placed on the health risks associated with radioactivity present in the environment, especially since the accident at the Fukushima Daiichi Nuclear Power Plant. In this study, a walking survey was conducted in Hirosaki City using a NaI(Tl) scintillation spectrometer to estimate and map the distribution of the ambient dose equivalent rate to monitor the radiological safety of the general public in Hirosaki City, where many nuclear facilities are located nearby. The average (±standard deviation) ambient dose equivalent rate was 0.056 ± 0.020 µSv h −1 . By comparison with the measurement data, it was found that the values of 85% of the data obtained using the walking survey technique deviated within ±20% relative to those obtained by spot measurements. Furthermore, the distribution of dose rates obtained in the nighttime survey was not significantly different from those obtained in the daytime.

Suggested Citation

  • Worawat Poltabtim & Saowarak Musikawan & Arkarapol Thumwong & Yasutaka Omori & Chutima Kranrod & Masahiro Hosoda & Kiadtisak Saenboonruang & Shinji Tokonami, 2023. "Estimation of Ambient Dose Equivalent Rate Distribution Map Using Walking Survey Technique in Hirosaki City, Aomori, Japan," IJERPH, MDPI, vol. 20(3), pages 1-15, February.
    • Handle: RePEc:gam:jijerp:v:20:y:2023:i:3:p:2657-:d:1054519
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