According to CCTV news today, Japanese media reported on the 9th that Dr. Aoyama, a visiting professor at Tsukuba University in Japan, recently released the research results at an international seminar hosted by Fukushima University.
Castle Peak said that radioactive cesium 1 137, which flowed into the sea in the accident of the Fukushima Daiichi nuclear power plant of Tokyo Electric Power Company in 20 1, reached the west coast of the United States, partially went northward, passed through the Bering Sea in the northernmost part of the Pacific Ocean, and returned to the northeast coast of Japan about 7 to 8 years later.
For this research result, many netizens said: "Harming others will eventually harm themselves" and "I feel that the whole Pacific Ocean has been affected".
In 20 17, a small amount of cesium 137 from the Fukushima nuclear accident was detected in the Bering Sea and Chukchi Sea, which crossed the Bering Strait, and the content was obviously lower than the standard value, but Qingshan said that "considering the trend, cesium 137 should have spread to the northern part of the Arctic Ocean".
It is reported that around 20 18, the radioactivity of cesium 137 in the northern coast of Japan began to increase and exceeded 0.002 becquerel in 20 19.
In Tsugaru Strait, which crosses the Pacific Ocean from the Sea of Japan, the radioactivity of Cs 137 reaches its peak at around 20 17, and then shows a downward trend.
The surface seawater of 76 1 in the North Pacific Ocean was collected in Qingshan, and the radioactivity of cesium 137 and cesium 134 was investigated. The observation data of * * * research and monitoring by governments of various countries were collected, and the trend was analyzed by model calculation. He found out the route of cesium 137 returning to Japan around the south side of the North Pacific Ocean, and the route of further returning to the Pacific Ocean from the Sea of Japan through the Tsugaru Strait.
According to the analysis of Castle Peak, cesium 137 from Bering Sea south along kamchatka peninsula has an influence. He said that through this study, "the cesium from the Fukushima Daiichi nuclear power plant accident has determined the general trend of the North Pacific in the past decade."
Even with the above influence, it still cannot affect Japan's decision, because according to Japanese media reports, the country has officially decided to discharge millions of tons of nuclear wastewater from the Fukushima Daiichi nuclear power plant into the sea. This decision of the Japanese government has aroused strong doubts and opposition from all walks of life.
Kazuhiro Sato, a member of the Iwaki City Council in Fukushima Prefecture, Japan, once said: The biggest problem is the plan to discharge nuclear wastewater into the sea, and there is no sufficient consultation. This is an atrocity.
An Hong, president of the National Federation of Fishery Trade Unions of Japan, issued a statement expressing strong protest, stressing that he will unswervingly and resolutely oppose the discharge of nuclear wastewater into the sea in the future.