Investigation of dose assessments to the residents at an unique natural radiation area in Sulawesi Island, Indonesia
Project/Area Number |
18KK0261
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Research Category |
Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))
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Allocation Type | Multi-year Fund |
Review Section |
Medium-sized Section 58:Society medicine, nursing, and related fields
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Research Institution | Hirosaki University |
Principal Investigator |
Tokonami Shinji 弘前大学, 被ばく医療総合研究所, 教授 (80247254)
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Co-Investigator(Kenkyū-buntansha) |
柏倉 幾郎 弘前大学, 保健学研究科, 特任教授 (00177370)
古川 雅英 琉球大学, 理学部, 教授 (40238671)
工藤 ひろみ 弘前大学, 保健学研究科, 助教 (50552684)
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Project Period (FY) |
2018-10-09 – 2022-03-31
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Project Status |
Completed (Fiscal Year 2021)
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Budget Amount *help |
¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
Fiscal Year 2020: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2019: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥8,320,000 (Direct Cost: ¥6,400,000、Indirect Cost: ¥1,920,000)
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Keywords | インドネシア / 高自然放射線地域 / 内部被ばく / 外部被ばく / ラドン / トロン / 大地放射線 / 生体影響評価 / 吸入摂取 / 食品 / 飲料水 / 経口摂取 / 光刺激ルミネセンス線量計 / 個人線量当量 / 子孫核種 / 高濃度化 / 血清アルブミン / 酸化修飾 / 低線量率慢性被ばく / 血液 / 生体影響 / 低線量 / 慢性被ばく / 放射線環境 / 被ばく / 線量評価 / リスク / 生物影響 |
Outline of Final Research Achievements |
Recently, we have found an unique area in Indonesia where naturally high radiation levels are present, resulting in chronic low dose-rate radiation exposures. We aimed to estimate the comprehensive dose due to internal and external exposures at the particularly high natural radiation area, and to discuss the biological responses to low-dose radiation. The lifetime cumulative dose estimated for the residents of study area were found to be received over 2.2 Sv as average which is much higher than the average dose of atomic bomb survivors for which risks of cancer and non-cancer diseases are demonstrated. According to the proteomic analysis of serum components based on blood samples from residents of study area, we discovered several interesting amino acids, and it can be used as a biomarker not only for the assessment of the presence or absence of radiation exposure but also for dose prediction in living organisms for chronic radiation.
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Academic Significance and Societal Importance of the Research Achievements |
低線量域における発がんリスクに関する情報は非常に限られており、この線量域での知見の蓄積が国内外で求められている。本研究で対象としたインドネシア・マムジュ地域は、他の高自然放射線地域と異なり、外部被ばくだけでなく内部被ばくの影響も大きい。東京電力福島第一原子力発電所事故後の一般公衆が抱いている最大の不安は、環境中に放出された放射性物質による低線量被ばくが周辺住民の健康状態にどのような影響を及ぼすのかということである。マムジュ地域で得られた知見は、放射線防護領域の研究者が直面している研究課題の解決に向けた示唆を与えるだけでなく、一般公衆が抱いている不安に対する科学的根拠を提供することにつながる。
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Report
(5 results)
Research Products
(57 results)
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[Journal Article] Heavy Metal Assessments of Soil Samples from a High Natural Background Radiation Area, Indonesia2022
Author(s)
Eka Djatnika Nugraha, June Mellawati, Wahyudi, Chutima Kranrod, Makhsun, Hirofumi Tazoe, Haeranah Ahmad, Masahiro Hosoda, Naofumi Akata, Shinji Tokonami
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Journal Title
Toxics
Volume: 10
Pages: 39-39
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] 222Rn and 226Ra Concentrations in Spring Water and Their Dose Assessment Due to Ingestion Intake2022
Author(s)
Ryohei Yamada, Masahiro Hosoda, Tomomi Tabe, Yuki Tamakuma, Takahito Suzuki, Kevin Kelleher, Takakiyo Tsujiguchi, Yoshiki Tateyama, Eka Djatnika Nugraha, Anna Okano, Yuki Narumi, Chutima Kranrod, Hirofumi Tazoe, Kazuki Iwaoka, Yumi Yasuoka, Naofumi Akata, Tetsuya Sanada, Shinji Tokonami
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Journal Title
International Journal of Environmental Research and Public Health
Volume: 19
Issue: 3
Pages: 1758-1758
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Comprehensive exposure assessments from the viewpoint of health in a unique high natural background radiation area, Mamuju, Indonesia2021
Author(s)
Eka Djatnika Nugraha, Masahiro Hosoda, Kusdiana, Untara, June Mellawati, Nurokhim, Yuki Tamakuma, Abarrul Ikram, Mukh Syaifudin, Ryohei Yamada, Naofumi Akata, Michiya Sasaki, Masahide Furukawa, Shinji Yoshinaga, Masaru Yamaguchi, Tomisato Miura, Ikuo Kashiwakura, Shinji Tokonami
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Journal Title
Scientific Reports
Volume: 11
Issue: 1
Pages: 14578-14578
DOI
NAID
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Characterization of Commercially Available Active-Type Radon-Thoron Monitors at Different Sampling Flow Rates2021
Author(s)
Yuki Tamakuma, Chutima Kranrod, Yuto Jin, Hiromu Kobayashi, Eka Djatnika Nugraha, Aoi Sanpei, Mizuki Kiso, Hiroki Hashimoto, Ryoju Negami, Masahiro Hosoda, Shinji Tokonami
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Journal Title
Atmosphere
Volume: 12
Issue: 8
Pages: 971-971
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] A unique high natural background radiation area ? Dose assessment and perspectives2021
Author(s)
M. Hosoda, E. D. Nugraha, N. Akata, R. Yamada, Y. Tamakuma, M. Sasaki, K. Kelleher, S. Yoshinaga, T. Suzuki, C. Pornnumpa, M. Furukawa, M. Yamaguchi, K. Iwaoka, T. Sanada, T. Miura, Kusdiana, D. Iskandar, E. Pudjadi, I. Kashiwakura, S. Tokonami
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Journal Title
Science of The Total Environment
Volume: 750
Pages: 142346-142346
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Exposures from radon, thoron, and thoron progeny in high background radiation area in Takandeang, Mamuju, Indonesia2020
Author(s)
Miki Arian Saputra, Eka Djatnika Nugraha, Tri Purwanti, Rokhmat Arifianto, Roza Indra laksmana, Richard P. Hutabarat, Masahiro Hosoda, Shinji Tokonami
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Journal Title
Nukleonika
Volume: 65
Pages: 89-94
Related Report
Peer Reviewed / Int'l Joint Research
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[Presentation] インドネシア・マムジュにおけるラドンの高濃度化の要因調査2019
Author(s)
細田正洋, Eka Djatnika Nugraha, Miki Arian Saputra, 赤田尚史, 山田椋平, 佐々木道也, 玉熊佑紀, 鈴木崇仁, 岩岡和輝, 古川雅英, 真田哲也, 山口平, 吉永信治, Abarrul Ikram, 柏倉幾郎, 床次眞司
Organizer
日本保健物理学会第52回研究発表会
Related Report
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[Presentation] インドネシア高自然放射線地域における放射線線量評価-異なる地上高の線量率測定-2019
Author(s)
佐々木道也, 山田椋平, Eka Nugraha, 赤田 尚史,, 床次眞司, 細田正洋, 岩岡和輝, Chanis Pornnumpa,, 工藤ひろみ, Kumar Sahoo, Iskandar Dadong, Eko Pudjadi
Organizer
日本原子力学会秋の大会
Related Report
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[Presentation] High indoor radon concentration observed in Yomitan-son, Okinawa Prefecture, southwestern part of Japan2018
Author(s)
M. Furukawa, Y. Omori, R. Shingaki, N. Masuda, M. Obata, Y. Tamakuma, T. Suzuki, S. Nakasone, A. Ishimine, M. Hosoda, N. Akata, S. Tokonami
Organizer
9th International Conference on High Level Environmental Radiation Areas - For Understanding Chronic Low-Dose-Rate Radiation Exposure Health Effects and Social Impacts
Related Report
Int'l Joint Research
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[Presentation] Evaluation of a radon air monitor as a measurement of radon concentration in water in comparison with a liquid scintillation counter2018
Author(s)
S. Higuchi, Y. Kamishiro, M. Ishihara, Y. Yasuoka, Y. Mori, M. Hosoda, K. Iwaoka, S. Tokonami, M. Janik, J. Muto, H. Nagahama, T. Mukai
Organizer
9th International Conference on High Level Environmental Radiation Areas - For Understanding Chronic Low-Dose-Rate Radiation Exposure Health Effects and Social Impacts
Related Report
Int'l Joint Research
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[Presentation] ラドン・トロンの環境中での空間分布と散逸率評価への応用2018
Author(s)
鈴木崇仁, 赤田尚史, 岩岡和輝, 山内可南子, 工藤ひろみ, 玉熊佑紀, 山田椋平, 城間吉貴, 古川雅英, 細田正洋, 床次眞司
Organizer
日本保健物理学会第51回研究発表会
Related Report
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