Original title: latest research! "Cesium" from the Fukushima nuclear leak will flow back to Japan after passing through the northernmost tip of the Pacific Ocean
Edited by: Li Zedong
On November 10, CCTV News quoted Japan's Kyodo news agency as saying that Daofu Aoyama, a visiting professor of Tsukuba University in Japan, recently released the research results at an international seminar hosted by Fukushima University, saying that the radioactive material cesium 137 flowing into the ocean in the accident of Tokyo Electric Power Company's Fukushima Daiichi nuclear power plant in 2011 reached the west coast of the United States, and then went north through the Bering Sea in the northernmost part of the Pacific Ocean, It will return to the northeast coast of Japan after about 7 to 8 years.
In 2017, a trace amount of cesium 137 from the Fukushima nuclear accident was detected in the Bering Sea and the Chukchi Sea on the edge of the Arctic Ocean crossing the Bering Strait, which was significantly lower than the standard value. However, Aoyama said that "considering the trend, cesium 137 should have expanded to the northern Arctic ocean".
Castle Peak collected surface seawater at 761 locations in the North Pacific, investigated the radioactivity of cesium 137 and cesium 134, collected observation data such as joint research and monitoring by governments, and analyzed the trend using model calculation. He found out the route of cesium 137 flowing back to Japan around the south side of the North Pacific and further from the sea of Japan through the Jinqing Strait to the Pacific.
The analysis shows that some cesium 137 reaches the west coast of the United States and flows north along the Alaska Peninsula. In 2017, the radioactivity was 0.003 Becquerel per liter of seawater in the Bering Sea and 0.004 Becquerel in the Chukchi Sea.
Around 2018, cesium 137 radioactivity began to rise along the north-east coast of Japan, exceeding 0.002 Becquerel in 2019. In the Tsuyoshi Strait from the sea of Japan to the Pacific side, cesium 137 activity peaked around 2017 and then decreased.
Therefore, Castle Peak analysis said that cesium 137 flowing southward from the Bering Sea along the Kamchatka Peninsula had an impact. He said that through this study, "cesium from the accident at the Fukushima Daiichi nuclear power plant has identified major trends in the North Pacific over the past decade".
Image source: visual China vcg111325505442
According to CNR news on April 14, the Japanese government held a cabinet meeting on April 13 and officially decided to discharge millions of tons of nuclear wastewater from 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.
Kato Sato, a member of iwaki City Council in Fukushima Prefecture, Japan, said: the biggest problem is that there has been no full consultation on the plan to discharge nuclear waste water into the sea. I think this kind of unilateral forced decision of the Japanese government is an atrocity.
The president of Japan's National Federation of fishery trade unions, Hiroshi Kishi, issued a statement expressing strong protest, stressing that he will remain unswerving in the future and resolutely oppose the discharge of nuclear wastewater into the sea.
On the evening of the 13th local time, the Russian Foreign Ministry issued a statement on its website expressing serious concern about the Japanese government's plan to discharge the nuclear sewage from the Fukushima Daiichi nuclear power plant into the sea.
The South Korean Foreign Ministry summoned the Japanese ambassador to South Korea on the 13th to lodge a solemn protest against Japan's decision, and the South Korean people also held protests.
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