Specialty

Water Supply Engineering, Water Quality Management, Water Quality Analysis, Water Treatment Process

Works

Research reports

1 Kosaka K. MHLW-Grant “Study on promotion of mitigation measures for carbon neutrality in water supply systems and adaptation measures for climate change impacts toward the realization of carbon neutrality in water supply systems (22CA2007).” Annual Research Report in FY 2022. 2023. (in Japanese)

2 Matsui Y, Asami M, Matsushita T, Kosaka K, et al. Report of group of chemicals and pesticides. In: MHLW-Grant “Study on improvement of drinking water quality management based on occurrence of chemicals and other items in drinking and raw waters (22LA1007).” Annual Research Report in FY 2022. 2023. (in Japanese)

Original papers

1 Tada Y, Kosaka K, Echigo S, Itoh S. High formation of trichloroacetic acid from high molecular weight and ultra-hydrophilic components in freshwater raphidophytes upon chlorination. Science of the Total Environment. 2023;879:163000.

2 Hinnech DCK, Kosaka K, Echigo S, Itoh S. Predictable LC-QTOF/MS fragmentation of ozone-reactive N-nitrosodimethylamine precursors coupled with in silico fragmentation and IM-QTOF facilitates their identification in sewage. Environmental Science & Technology. 2022;56(4):2345–2354.

3 Nakai T, Kosaka K, Asami M, Akiba M. Removal of halobenzoquinone precursors during advanced water purification process. Ozone Science & Engineering. 2022;44(2):208-216.

4 Zhou X, Kosaka K, Nakanishi T, Welfringer T, Itoh S. Manganese accumulation on pipe surface in chlorinated drinking water distribution system: Contributions of physical and chemical pathways. Water Research. 2020;184:116201.

5 Kosaka K, Koike Y, Miyabayashi Y, Saito K, Asami M, Sasaki M, Sato S, Akiba M. National survey of utilization of continuous water quality monitors in water supply systems in Japan. Water Science & Technology: Water Supply. 2019;19:1347–1353.

6 Hinnech DCK, Hanafi AE, He K, Kosaka K, Echigo S, Asada Y, Itoh S. Formation of N-nitrosodimethylamine by chloramination of anthropogenic nitrogenous compounds with dimethylamine monitored by Japanese water authorities. Journal of Hazardous Materials. 2019;367:620-628.

Reviews

1 Kosaka K, Echigo S, Matsushita T, Imai Y, Seimiya Y, Niwayama S.　Recent trend of formation and control of chlorinous odor in drinking water. Journal of Japan Water Works Association. 2023;92(3):19-32. (in Japanese)

2 Kosaka K, Akiba M. Adaptations of water supply system to climate change impacts. Journal of the National Institute of Public Health. 2020;69:425–433. (in Japanese)

Social contributions

Associate editor. Ozone: Science & Engineering.

Editor. AQUA – Water Infrastructure, Ecosystems and Society.