2-1. Periodic sampling and analysis of stream water on Kureha Hill
Basically, stream water sampling was conducted biweekly at the Hyakumakidani stream. In addition to the Hyakumakidani stream, stream water was sampled at four other locations (Kanaya, Teramachi, Anyobo, and Chayamachi) to compare the data with that from more than 20 years ago. Figure 2-1 shows the sampling locations on Kureha Hill.