Proceedings of the General Meeting of the Association of Japanese Geographers
Annual Meeting of the Association of Japanese Geographers, Spring 2020
Session ID : P161
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Host: The Association of Japanese Geographers

Name : Annual Meeting of the Association of Japanese Geographers, Spring 2020

Date : March 27, 2020 - March 29, 2020

Abstract
A Study on Water Environment in Hakodate City, Hokkaido (1)
*Tomoko Kobayashi, Koji Kodera, Go Yamaki, Yoshihiro Igari
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Keywords: water environment, peninsulas, Hakodate City, Comprehensive Survey of Water Environment, COD
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Abstract

Field surveys were conducted 4 times from March to November 2019. At the site, air temperature, water temperature, electrical conductivity, pH, RpH, flow rate, and COD (Chemical Oxygen Demand) were measured. The sampled water samples were analyzed for total organic carbon and major dissolved components.

There are many sites that show the composition of deep groundwater above and to the north of the main dissolved components. There were many sites with general river water composition. Areas around Komagatake, Yokotudake and Ezan were affected by volcanoes.

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