T
Tomohiko Watanuki
Publications - 3
Citations - 391
Tomohiko Watanuki is an academic researcher. The author has contributed to research in topics: Microcystis & Microcystin. The author has an hindex of 3, co-authored 3 publications receiving 377 citations.
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Journal ArticleDOI
Stability of microcystins from cyanobacteria--II. effect of UV light on decomposition and isomerization
Kiyomi Tsuji,Tomohiko Watanuki,Fumio Kondo,Mariyo F. Watanabe,Sumiko Suzuki,Hiroyuki Nakazawa,Makoto Suzuki,Hideaki Uchida,Ken-ichi Harada +8 more
TL;DR: Since no noxious products were formed in the present study, a water treatment including UV irradiation is very possible for removing microcystins from raw water.
Journal ArticleDOI
Stability of microcystins from cyanobacteria--IV. Effect of chlorination on decomposition.
Kiyomi Tsuji,Tomohiko Watanuki,Fumio Kondo,Mariyo F. Watanabe,Hiroyuki Nakazawa,Makoto Suzuki,Hideaki Uchida,Ken-ichi Harada +7 more
TL;DR: Results suggested that chlorination at an adequate chlorine dose is very effective for the removal of microcystin in raw water, and preoxidation of the cell itself with chlorine must be avoided, because it frequently causes toxin release from algae and produce trihalomethanes during water treatment.
Journal ArticleDOI
Microcystin levels during 1992-95 for Lakes Sagami and Tsukui-Japan.
Kiyomi Tsuji,Setsuko Setsuda,Tomohiko Watanuki,Fumio Kondo,Hiroyuki Nakazawa,Makoto Suzuki,Ken-ichi Harada +6 more
TL;DR: The resulting toxins persisted at the same concentration level for 14 days and the microcystin concentrations steadily declined, showing that biodegradation using aquatic natural bacterial flora is an effective detoxification process under natural conditions.