淡水生物-特に藍藻類に起因する臭気(パネルディスカッション)(第9回環境汚染物質とそのトキシコロジーシンポジウム)

概要

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Musty odor have become more frequent problem with increasing use of reservoirs as sources of water supply in Japan. Musty odor problems occur in the eutrophicated reservoirs, but that occurrences are not related to concentration of nutrients, phosphate ane nitrogen. In Japanese reservoirs the occurrences rato of the musty odor problem increased proportionately to an increase in potassium permanganate consumption. We have developed a new analytical method for measuring odorous compounds, geosmin and 2-MIB, at a concentration of nanogram per liter level. Using this method slow sand filtration was found to be effective for removing odor, where the odorous compounds were reduced to less than 10 ng/l in the effluents. The analyses of the water taken from the lake as well as of the laboratory cultures of the blue-green algae led to the conclusion that 2-MIB is produced by Phormidium temue, whereas geosmin by Anabaena macrospora in Lake Biwa.
社団法人日本薬学会の論文
1983-02-28