About KUMAGAI HIROSHI
About 福岡県保健環境研
About 水循環 貯留と浸透
About air pollutant
About environmental assimilating capacity
About precipitation (meteorology)
About nutritive salt
About database
About atmospheric precipitation
About pollutant
About nutrient salt
About load
About Water pollution in general
About Water quality control
About Sewerage engineering and wastewater treatment in general
About Aerospheric environmental pollution
About 雨水
About 物質循環
About 大気降下物
About 負荷量
About 調査