抄録
Several types of distributed-type model are commonly used for analysis of accumulation and washoff behavior of pollutants in the sewer during a rainy day. We try to analyze accumulation and washoff behavior of micro-pollutants using the distributed-type model. The micro-pollutants analyzed in this study was benzo(a)pyrene. An automobile exhaust gas is the main source of benzo(a)pyrene. The distributed-type model was useful for understanding of accumulation and washoff behavior of benzo(a)pyrene. In particular, the estimation of the accumulation behavior along the roadside was good. However, there is a limit in using the model for planning an effective measures against water pollution of benzo(a)pyrene. We need to develop an original distributed-type model that can lead to the realization of the effective measures.
