Abstract
Heavy metals contained in soil matters collected at 83 street water inlets in the Tokyo area were analyzed to determine the pathway of heavy metals between roadside deposits and sediments in environment. The results show that the ranges of concentrations of iron, manganese and titanium were narrow regardless of sampling points, whereas those of lead, chromium and zinc were distributed in wider ranges, reflecting traffic conditions and the surrounding environments. The average concentrations of zinc and lead in the sediments in the street water inlets were 0.70mg in a gram and 0.12mg in a gram respectively, which are in the same ranges as typical roadside deposit samples.
