Latest Update：2026/03/24 10:42:35

KOSAKA Koji

Div (Section) name/title: Health and Environmental Risk Division（Wako Branch Office）／Prime Senior Researcher

Research Subject

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Research Result (Publication)

Original Paper
Influence of environmental water on the growth phases of freshwater raphidophytes and their disinfection byproducts

Presenter : Tada Y., Tukana M., Hinneh K.D.C., Asada Y., Kosaka K., Echigo S.
Title : , Journal of Water and Environment Technology, 24(1):27-39 (2026)
Original Paper
Investigating the sources of perfluorobutanesulfonic acid in a watershed of Chugoku region in Japan

Presenter : Kosaka K., Nakazawa Y., Yoshida N., Asami M.
Title : , Water Supply, 25(11):1530-1538 (2025)
Original Paper
Structural estimation of high molecular weight and hydrophilic precursors of trichloroacetic acid from raphidophyceae

Presenter : Tada Y., Hori K., Kosaka K., Echigo S., Itoh S.
Title : , Environmental Science & Technology, 59(42):22807-22818 (2025)
Original Paper
Sorption and desorption of N-nitrosodimethylamine precursors bearing N,N-dimethylhydrazine moiety to solid-phase extraction media to aid their isolation and identification from environmental waters

Presenter : Hinneh, K.D.C, Okabe J., Tada Y., Kosaka K., Echigo S., Itoh S.
Title : , Analytical Methods, 17(42):8580-8589 (2025)
Original Paper
Investigating the sources of perfluorobutanesulfonic acid in a watershed of the Chugoku region in Japan

Presenter : KOSAKA K., Nakazawa Y., YOSHIDA N., ASAMI M.
Title : , Water Supply, 25(11):1530-1538 (2025)

Influence of environmental water on the growth phases of freshwater raphidophytes and their disinfection byproducts

Presenter : Tada Y., Tukana M., Hinneh K.D.C., Asada Y., Kosaka K., Echigo S.
Title : , Journal of Water and Environment Technology, 24(1):27-39 (2026)
Investigating the sources of perfluorobutanesulfonic acid in a watershed of Chugoku region in Japan

Presenter : Kosaka K., Nakazawa Y., Yoshida N., Asami M.
Title : , Water Supply, 25(11):1530-1538 (2025)
Structural estimation of high molecular weight and hydrophilic precursors of trichloroacetic acid from raphidophyceae

Presenter : Tada Y., Hori K., Kosaka K., Echigo S., Itoh S.
Title : , Environmental Science & Technology, 59(42):22807-22818 (2025)
Sorption and desorption of N-nitrosodimethylamine precursors bearing N,N-dimethylhydrazine moiety to solid-phase extraction media to aid their isolation and identification from environmental waters

Presenter : Hinneh, K.D.C, Okabe J., Tada Y., Kosaka K., Echigo S., Itoh S.
Title : , Analytical Methods, 17(42):8580-8589 (2025)
Investigating the sources of perfluorobutanesulfonic acid in a watershed of the Chugoku region in Japan

Presenter : KOSAKA K., Nakazawa Y., YOSHIDA N., ASAMI M.
Title : , Water Supply, 25(11):1530-1538 (2025)

Research Result (Presentation)

Water quality monitoring and variability assessment of drinking water source using a continuous EEM measurement with deep learning approach

Presenter : Burzio C., Welle M., Kawaguchi Y., Kosaka K., Komatsu K., Hashimoto T.
Name of Society : 60th Annual Meeting of the Japan Society on Water Environment (2026)
Name of Proceedings : Abstracts, 450

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