About ISHIZAKI SHUZO
About 長崎県衛生公害研
About HAMADA HISATAKE
About 長崎県衛生公害研
About heavy metal pollution
About animal damage
About Animal and plant damage
About Heavy metals and their compounds in general
About River pollution
About Heavy-metal research and measurement
About 廃止鉱山
About 流域
About カワニナ
About 重金属