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経気道・経皮暴露リスク評価を可能とする室内環境解析用の数値人体モデルの開発

Research Project

Project/Area Number 18J21307
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section国内
Research Field Architectural environment/Equipment
Research InstitutionKyushu University

Principal Investigator

久我 一喜  九州大学, 総合理工学府, 特別研究員(DC1)

Project Period (FY) 2018-04-25 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 2020: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2019: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2018: ¥900,000 (Direct Cost: ¥900,000)
Keywords経気道暴露 / 経皮暴露 / CFD / PBPKモデル / 数値気道モデル / 数値人体モデル / 室内空気質
Outline of Annual Research Achievements

令和2年度は,これまで開発してきた数値流体力学CFDを基礎とする経気道・経皮暴露リスク評価用の数値人体モデルを適用し,米国等で流行している電子煙草でのマリファナ吸引による1次暴露から2次暴露までを連続的に解析した.これまで電子煙草の代表的な汚染物質であるホルムアルデヒドやニコチンなどの各種揮発性有機化合物を対象に解析を行ってきたが,マリファナに含まれるテロらヒドロカンナビノール(THC)を対象として拡張を行った.結果としてTHCの吸入による経気道吸収率はニコチンと類似し非常に高い値を示した.更に,非喫煙者による2次暴露においても,THCはニコチンと類似した値を示した.また,経皮暴露量は,経気道暴露量と同様に大きな値を示し,経皮暴露が重要な暴露経路であることが示された.また,我々の数値解析モデルは気相領域と気道内組織や皮膚組織内の濃度分布を連成させながら解くため,数値解析の安定上,高々数秒の流体現象を数十日の計算で再現することになり,解析の予測精度を落とすことなく,解析を高速化することが喫緊の課題であった.これに対応して,気相内領域と組織内領域での解析の連成頻度を調整することで,解析の予測精度を落とすことなく計算速度を数倍にすることを可能にした.これよって,経気道・経皮暴露リスク評価を可能とする室内環境解析用の数値人体モデルが境界条件を変化させたパラメトリック解析に適用可能になっている.

Research Progress Status

令和2年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和2年度が最終年度であるため、記入しない。

Report

(3 results)
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (16 results)

All 2021 2020 2019 2018

All Journal Article (10 results) (of which Int'l Joint Research: 8 results,  Peer Reviewed: 10 results,  Open Access: 7 results) Presentation (6 results) (of which Int'l Joint Research: 6 results)

  • [Journal Article] Pair approximation model for the vaccination game: predicting the dynamic process of epidemic spread and individual actions against contagion2021

    • Author(s)
      Kuga Kazuki, Tanaka Masaki, Tanimoto Jun
    • Journal Title

      Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences

      Volume: 477 Issue: 2246 Pages: 20200769-20200769

    • DOI

      10.1098/rspa.2020.0769

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A numerical investigation of the potential effects of e‐cigarette smoking on local tissue dosimetry and the deterioration of indoor air quality2020

    • Author(s)
      Kuga Kazuki、Ito Kazuhide、Chen Wenhao、Wang Ping、Kumagai Kazukiyo
    • Journal Title

      Indoor Air

      Volume: - Issue: 5 Pages: 1018-1038

    • DOI

      10.1111/ina.12666

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The impact of information spreading on epidemic vaccination game dynamics in a heterogeneous complex network- A theoretical approach2020

    • Author(s)
      Kabir KM Ariful、Kuga Kazuki、Tanimoto Jun
    • Journal Title

      Chaos, Solitons & Fractals

      Volume: 132 Pages: 109548-109548

    • DOI

      10.1016/j.chaos.2019.109548

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Can the inhalation exposure of a specific worker in a cross-ventilated factory be evaluated by time- and spatial-averaged contaminant concentration?2019

    • Author(s)
      Alicia Murga, Kazuki Kuga, Sung-Jun Yoo, and Kazuhide Ito
    • Journal Title

      Environmental Pollution

      Volume: 252 Pages: 1388-1398

    • DOI

      10.1016/j.envpol.2019.06.056

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Three-strategy and four-strategy model of vaccination game introducing an intermediate protecting measure2019

    • Author(s)
      Alam Muntasir、Kuga Kazuki、Tanimoto Jun
    • Journal Title

      Applied Mathematics and Computation

      Volume: 346 Pages: 408-422

    • DOI

      10.1016/j.amc.2018.10.015

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Analysis of SIR epidemic model with information spreading of awareness2019

    • Author(s)
      Kabir, K. M. A., Kuga, K,, Tanimoto, J.
    • Journal Title

      Chaos, Solitons & Fractals

      Volume: 119 Pages: 118-125

    • DOI

      10.1016/j.chaos.2018.12.017

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Effect of information spreading to suppress the disease contagion on the epidemic vaccination game2019

    • Author(s)
      Kabir K.M. Ariful、Kuga Kazuki、Tanimoto Jun
    • Journal Title

      Chaos, Solitons & Fractals

      Volume: 119 Pages: 180-187

    • DOI

      10.1016/j.chaos.2018.12.023

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] To vaccinate or not to vaccinate: A comprehensive study of vaccination-subsidizing policies with multi-agent simulations and mean-field modeling2019

    • Author(s)
      Kuga Kazuki、Tanimoto Jun、Jusup Marko
    • Journal Title

      Journal of Theoretical Biology

      Volume: 469 Pages: 107-126

    • DOI

      10.1016/j.jtbi.2019.02.013

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] QUANTITATIVE RISK ASSESSMENT OF THE FIRST-HAND / SECOND-HAND EXPOSURE OCCURRED BY VAPING USING COMPUTER SIMULATED PERSON INTEGRATED WITH VIRTUAL AIRWAY2018

    • Author(s)
      KUGA Kazuki、YOO Sung-Jun、ITO Kazuhide
    • Journal Title

      Journal of Environmental Engineering (Transactions of AIJ)

      Volume: 83 Issue: 754 Pages: 1005-1013

    • DOI

      10.3130/aije.83.1005

    • NAID

      130007599064

    • ISSN
      1348-0685, 1881-817X
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Impact of imperfect vaccination and defense against contagion on vaccination behavior in complex networks2018

    • Author(s)
      Kuga, K, Tanimoto, J.
    • Journal Title

      Journal of Statistical Mechanics: Theory and Experiment

      Volume: 2018 Issue: 11 Pages: 113402-113402

    • DOI

      10.1088/1742-5468/aae84f

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Physiological responses and CO2 emission of humans at thermally warm temperature and reduced air quality2020

    • Author(s)
      Kazuki Kuga, Kazuhide Ito, Pawel Wargocki
    • Organizer
      16th Conference of the International Society of Indoor Air Quality & Climate
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] CO2 Emission Rates from Humans at Light Activity (ICHEAR project)2020

    • Author(s)
      Mitsuharu Sakamoto, Kazuki Kuga, Kazuhide Ito, Gabriel Beko, Jonathan Williams, Pawel Wargocki
    • Organizer
      16th Conference of the International Society of Indoor Air Quality & Climate
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Three Dimensional Clothing Model integrated with Computer Simulate Person for Computational Fluid Dynamics Simulation2020

    • Author(s)
      Yujin Kang, Kei Murota, Kazuki Kuga, Sung-Jun Yoo, K Takenouchi, Shin-ichi Tanabe, Kazuhide Ito
    • Organizer
      16th Conference of the International Society of Indoor Air Quality & Climate
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Flow and hygrothermal transfer analysis in three dimensional clothing model integrated with computer simulate person2020

    • Author(s)
      Kei Murota, Yujin Kang, Kazuki Kuga, Sung Jun Yoo, Kazuki Takenouchi, Shin Ichi Tanabe, Kazuhide Ito
    • Organizer
      16th Conference of the International Society of Indoor Air Quality and Climate: Creative and Smart Solutions for Better Built Environments, Indoor Air 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Comparative inhalation exposure/toxicology analysis of e-cigarette vapors with different puffing behaviors using PBPK-CSP-CFD approach2019

    • Author(s)
      Kuga Kazuki
    • Organizer
      IAQVEC
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Assessment of E-cigarette smoking using in silico human respiratory tract model integrated with coupled PBPK-CFD analysis2018

    • Author(s)
      Kuga Kazuki
    • Organizer
      Roomvent-Ventilation 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research

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Published: 2018-05-01   Modified: 2024-03-26  

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