Evaluation of Water Quality Risk in Water Environment

Due to the possibility that it will affect human health as well as the ecosystem, there is concern about water pollution due to pathogens and micropollutants. For measurement method development, pollution status clarification, aquatic organism effect evaluation, and countermeasure development for effect reduction to be done, a priority research project was carried out on water quality risk evaluation, targeting endocrine disrupting pathogens, dioxins, and chemicals. In terms of endocrine disrupting chemicals, there was analytical method development for sediments, wastewater, and environment water; there was clarification of concentration in wastewater treatment plants and major rivers; there was resolution of wastewater treatment process fate; and there was clarification of river and lake behavior. Additionally, there was clarification of estron's major contribution to estrogen-like river water and treated wastewater, and evaluation of effect of estrogen-like activity on fish. Two quick and easy methods were proposed as far as dioxins were concerned: the quadruple GC/MS measurement method and the pressurized fluid extraction method. Good dioxin and suspended solid concentration correlation was found, which led to the proposal of using suspended solid measurement for dioxin resuspension monitoring. In regard to pathogens, there was rapid and simpler measurement method development and molecular biology technique application. There was clarification of the fate of wastewater treatment plant virus, and development of the infectious pathogenic protozoa ability evaluation methods.

  • Availability:
  • Authors:
    • Suzuki, Yutaka
    • Komori, Koya
    • Okayasu, Yuji
    • Kitamura, Tomokazu
    • Ozaki, Masaaki
    • Ochi, Shuichi
    • Suwa, Mamoru
    • Tanaka, Hiroaki
    • Miyajima, Kiyoshi
    • Tamamoto, Hiroyuki
    • Minamiyama, Mizuhiko
    • Ozawa, Takushi
    • Ito, Hiroyuki
  • Publication Date: 2008-2

Language

  • Japanese
  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01114091
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 30 2008 6:52AM