Tritium-containing water Predicting spread when released to the ocean TEPCO April 6, 6:10
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The government is considering disposal of water containing radioactive materials such as tritium that continues to accumulate at the Fukushima Daiichi Nuclear Power Station. It turned out that such things are elongated.
At the Fukushima Daiichi Nuclear Power Plant where the accident occurred, water containing tritium etc. continues to accumulate in the tank, and the government is currently considering disposal methods.
In this regard, TEPCO predicted areas where the concentration per liter of seawater would exceed 1 becquerel for each year of release if it were to be released into the sea.
According to the report, 100 trillion becquerels per year would be extended 2 km offshore and 30 km north-south from the nuclear power plant.
The annual release of 22 trillion becquerels would be 700 meters offshore and 3 kilometers north-south. Regardless of the amount of emissions, it means that it is elongated along the shore due to the effects of wind and tides.
"Becquerel" is a unit that indicates the amount of radioactive material. Currently, 1.19 million tons of water stored in tanks contains 860 trillion becquerels of tritium.
This forecast is expected to be announced at a meeting to hear the opinions of local stakeholders starting in Fukushima Prefecture, etc. from June 6.
However, TEPCO does not make any predictions about diffusion to the atmosphere because there is no general model.
Regarding the disposal of water containing tritium, etc., a subcommittee of the country has compiled a report in February that it is realistic to release it to the sea and the atmosphere in February, but local relations such as fishermen Opposition voices are rising, mainly among the elderly.