Abstract
It is necessary to build up a tool to assess scientifically the safety of the leachate from the landfill site of waste disposal. In this research, the concentrations of heavy metals analyzed by ICP were used to assess the water quality of the leachate. Multiple regression analysis was applied to the obtained data to estimate those sources of the heavy metals that effected to the water quality of river water. And we examined a past influence by investigating the content of the metals on the small particle element (φ<105μm) in the river sediment. The influence of leachate in the past seemed to be low. However, the trace of the effect on the water environment was assumed to be clear as to cadmium and lead.
