摘要：The decreasing inclination was suggested on the concentration of total suspended particle matter (TSP) in Umedashinmichi. Then, the concentration of metals (Fe, Mn, Zn, Cu, Pb) and ions (SO42-, NO3-) in TSP decreased following by that of TSP. Such a decreasing inclination was not observed on the concentration of suspended particule matter (SPM), NOx and hydrocarbons. The ratio of some metals (Fe, Zn, Mn) in TSP was relatively constant.
