They have lied for all those years years to the people from who they needed the permission before any dumping ( fishermen associations, local government, etc.) that all radionuclides had been filtered out, that it was only tritiated water. We have to wonder what is forcing them suddenly to admit this.
The Associated Press reported from a TEPCO press conference held late last week that treated water TEPCO has been trying to dump in the Pacific ocean is not safe to dump.
“much of the radioactive water stored at the plant isn’t clean enough and needs further treatment if it is to be released into the ocean.”
“TEPCO said Friday that studies found the water still contains other elements, including radioactive iodine, cesium and strontium. It said more than 80 percent of the 900,000 tons of water stored in large, densely packed tanks contains radioactivity exceeding limits for release into the environment.”
There is no transparent system of accountability for this stored water. Reporting of the levels of contamination and what isotopes are in what types of stored water are almost non existent.
Tokyo Electric Power Company has admitted that much of the water stored at its Fukushima Daiichi nuclear plant had not been treated completely enough for release into the environment.
How to dispose of an ever-increasing amount of radioactive water at the plant is a big issue. The contaminated water is generated daily in the process of cooling the damaged reactors.
Before being stored in tanks at the plant, the water undergoes treatment that is supposed to get rid of all radioactive substances but tritium. Tritium is difficult to remove.
One of the disposal ideas is to release the water still containing tritium into the sea.
But many at a public hearing in August opposed to the plan. Some people pointed that the water in question also contains other radioactive elements.
At a meeting of experts in Tokyo on Monday, the utility officials reported that as of August, there was 890,000 tons of such water at the plant.
They said they suspect that more than 80 percent of the water contained not only tritium but also other radioactive substances, such as iodine and strontium, and that their levels exceeded the limits for release into the environment.
A senior Tokyo Electric official apologized, saying his company was too focused on the issue of tritium and failed to provide a full explanation.