水環境学会誌
Online ISSN : 1881-3690
Print ISSN : 0916-8958
調査報告
ラグナ湖の水質特性
中島 淳長岡 裕大垣 眞一郎
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ジャーナル フリー

1996 年 19 巻 8 号 p. 664-667

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Water quality of Laguna de Bay, the largest lake in the Philippines, was survyed as a small joint survey of Japanese and Philippine NGO groups. The lake water had relatively high concentration of SS caused by resuspending silt and fine clay from the bottom sediment due to shallow water depth and strong wind. Chl a concentration was low in spite of high concentrations of nitrogen and phosphorus. Trihalomethane formation potential test showed high formation of bromine compounds due to intrusion of sea water into the lake. Relatively high concentration of SS, COD, nitrogen and phosphorus was observed at the mouth of the most polluted tributary.

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© 1996 公益社団法人 日本水環境学会
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