[Character of water quality of the inner moats around the Imperial Palace (author's transl)].
D005618:Fresh Water / Q000032:analysis*; D006863:Hydrogen-Ion Concentration; D009584:Nitrogen / Q000032:analysis; D010100:Oxygen / Q000032:analysis; D010710:Phosphates / Q000032:analysis; D012621:Seasons; D014041:Tokyo; D014867:Water / Q000032:analysis*
D010710:Phosphates; D014867:Water; D009584:Nitrogen; D010100:Oxygen