Host: The Association of Japanese Geographers
Name : Annual Meeting of the Association of Japanese Geographers, Autumn 2021
Date : September 18, 2021 - September 20, 2021
The Shingashi River basin used to be a region where water quality has deteriorated significantly, but in recent years the water quality has been improving due to basin sewerage and hydrophilic projects. However, there are still some areas where the water quality has not improved in the upper reaches of the tributaries located in the Sayama Hills. Based on the results of river surveys around the Sayama Hills for two years from November 2017, an additional survey will be conducted from December 2020 to identify pollution sources, and the characteristics of the water environment centered on water quality will be considered.
In the upper reaches of the Rokuya River, the water quality of the final disposal site for general waste affects EC, and in the Karabori River, the load of EC and pH increases due to the influence of dairy factory wastewater in the middle basin. Also, in the middle reaches of the Kurome River, EC and COD are high due to the influence of wastewater from soft drink factories. We would like to continue the survey and reflect the analysis results of the main dissolved components in the research.
