Plastic waste on the bottom of the sea at a depth of 6000m
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In the deep water of about 6000 meters in depth, it was found that various plastic wastes accumulated in the deep sea, such as finding a hamburger bag 35 years ago. The Japan Agency for Marine-Earth Science and Technology that conducted the survey is proceeding with the analysis to show that plastics are difficult to decompose in the deep sea.
This survey was conducted by the Japan Agency for Marine-Earth Science and Technology off the coast of Sagami Bay and Boso Peninsula from August to September in an attempt to clarify the actual state of ocean pollution from plastic waste.
Among these, in a survey using the manned submersible research ship "Shinkai 6500", the plastic hamburger bag described as being manufactured in 1984, 35 years ago, was kept in its original shape at a depth of about 6000 meters off the Boso Peninsula. It means that it was found.
In addition, various plastic waste such as toothpaste containers that have been bitten by living organisms are accumulated on the sea floor, and the Japan Agency for Marine-Earth Science and Technology (JICA) considers that plastics are difficult to decompose in the deep sea. Is proceeding.
Also, after passing Typhoon No.15, a huge net was used to scoop the surface of the sea about 20 km off Sagami Bay, and a large amount of plastic fragments that were not found before the typhoon were found and usually left on sandy beaches etc. It is said that the garbage that has been washed away into the sea.
Masafumi Tsuchiya, group leader of the Ocean Plastics Dynamics Research Group, said, “I want to identify the sources of spillage and clarify where it must be managed to prevent marine pollution.”