About HATAKEYAMA S
About National Inst. Environmental Studies, Ibaraki, JPN
About INOUE T
About National Inst. Environmental Studies, Ibaraki, JPN
About TADA M
About National Inst. Environmental Studies, Ibaraki, JPN
About 環境毒性学会誌
About river pollution
About organophosphorus insecticide
About River pollution
About Pesticides
About Fenthion
About Fenobucarb
About 水田
About 田園地帯
About 河川
About エビ
About 試験
About 河川水
About 毒性
About 経時変化