| Dissolution tests were conducted at 30°C under aerobic and anaerobic condition by using sediment from 3 different sampling points in Lake Kasumigaura and microbial community analysis in the bottom sediment was conducted corresponding to a position in a depth direction in order to understand the relevant behavior of materials and lake water quality. In the result of dissolution tests, the behavior of dissolution from bottom sediment was largely different between samples points in the lake. Also, in the results of microbial community analysis, the detection rate of each bacterium was largely changed among samples, especially in the surface of bottom sediment nearby inflowed river. The different of microbial community in the bottom sediment in lake would effect on lake water quality. |
