Shoreline of Japan was widely oiled by the spills of Russian tanker in January, and of Korean tanker in April, 1997. To protect fishery and tourist resources, many people participated in the cleanup activities. Differences on spilt oil quality, topographical shoreline, climatic condition at the spill sites, resulted to different application of cleanup methods. For instance, the cleanup at Tsushima during warmer season of April, cleanup using sawdust was attempted.
