About SHIGEMATSU TAKAAKI
About 大阪市大 大学院工学研究科
About nutritive salt
About phytoplankton
About water pollutants
About sewage treatment plant
About heat island
About environmental improvement
About Osaka prefecture
About new town
About coastal district
About bay
About heat-island phenomena
About environmental enhancement
About blue tide
About new town
About Osaka Bay
About Environmental pollution in general
About 大阪
About エリア
About 現状
About 展望
About 海