Development of Quick Reference Tables of Flowing Prediction of Substances in River Systems in Japan－An Example of Chloroform in the Tama, Yodo, and Nikko River Systems－

DOI Web Site 8 References
  • ISHIKAWA Yuriko
    The Research Institute of Science for Safety and Sustainability, National Institute of Advanced Industrial Science and Technology
  • MURATA Michihiro
    Nihon Suido Consultant Co., Ltd.
  • KAWAGUCHI Tomoya
    Nihon Suido Consultant Co., Ltd.
  • ONO Kyoko
    The Research Institute of Science for Safety and Sustainability, National Institute of Advanced Industrial Science and Technology
  • TSUNEMI Kiyotaka
    The Research Institute of Science for Safety and Sustainability, National Institute of Advanced Industrial Science and Technology

Bibliographic Information

Other Title
  • 化学物質流出事故対策に活用可能な河川流下予測早見表の開発－多摩川, 淀川, 日光川におけるクロロホルムを例として－

Abstract

<p>For use in countermeasures to chemical spill accidents in river basins for national and local governments, we developed quick reference tables for flowing prediction of chemical concentrations. Accident points were set up to reflect the differences in catchment area and gradient in three river systems of various basin sizes, and simulations were conducted for sunny, rainy, and severe rainfall conditions using the AIST–SHANEL model with a 1-minute time resolution. Using these simulation results, we made quick reference tables of the concentrations of substances relative to the distance and time from the accident. All the tables were summarized in terms of catchment area and gradient and indicated that the chemical flow downstream time tends to be shorter when the gradient is larger and the peak concentration of a chemical substance tends to be lower when the catchment area is larger owing to dilution effects. We will develop quick reference tables of chemical concentrations for more river systems and chemical substances with different physical properties, which will enable us to devise more efficient countermeasures to chemical spill accidents occurring in any river system in Japan.</p>

Journal

References(8)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top