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Hosei University Laboratory of Regional Design with Ecology New Site
[Change in water quality in the Sumida River of the 20th century]
[Change in population and factories along the Sumida River]
[Water quality distribution map of Tokyo (around 1920) seen in literary works]
[Water quality distribution map of Tokyo (around 1940) seen in literary works]
[Well of Maimaizu (Hamura, Tokyo)]

 

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