抄録
In general, pollutants discharged into the sea are often absorbed in coastal sediment in a long time. The movement of the sediment has been made rather clear in shallow waters, but not yet clear in deeper waters. The auther carried out a field survey of sediment in an offshore area and obtained thickness of sediment movement layer, accumulation rate, concentration of suspended sediment, critical water depth for sediment movement, and direction of sediment transport.
