A small amount of pumice stones have been found on some islands in the Izu Islands of Tokyo, and there is a risk that the city will be washed ashore in the future, saying that if a large amount of pumice stones flow into the port, it will take time and a large amount of money to remove it. If it is determined, we are proceeding with preparations for taking measures, such as installing an oil fence at the entrance of the port, in coordination with each local government and fishery cooperative.
According to the capital, a small amount of light stones have been confirmed on Shikinejima, Izu Oshima, Miyakejima, and Mikurajima in the Izu Islands, and a band of light stones has been witnessed off the coast of Kozushima.
The Tokyo Metropolitan Government has set up a fishing survey guidance boat around the Izu Islands to focus on areas where there is a high possibility of drifting due to tides, etc., and is strengthening its vigilance by collecting sighting information in cooperation with the fishery cooperative. increase.
In the future, if a large amount of pumice stones flow into the port, it will take time and a large amount of money to remove it. We are proceeding in coordination with local governments and fisheries cooperatives.
According to the city, the required amount of booms has already been secured.
In addition, if a large amount of water flows into the port, the city will use heavy machinery to remove it from the land, and is coordinating with construction companies on the island.