Fukushima nuclear plant with containers of radioactive waste water
From Undercurrent News
December 23, 2020
The mayors and governors of all 17 major cities and provinces in South Korea adopted a joint statement warning against Japan releasing contaminated water into the ocean from its crippled Fukushima nuclear power plant, reports Korea JoongAng Daily.
In a joint statement Tuesday, the Governors Association of Korea, which includes cities that are administered as provinces, called on the Japanese government to “immediately halt discussions to release the radioactive water from Fukushima” and to “share information to the public in a transparent manner”.
The governors’ statement comes as Japan is nearing a decision on plans to release over 1.2 million tons of contaminated water from the Fukushima Daiichi nuclear plant into the Pacific Ocean.
Plans to dump the water have been delayed in Japan amid fierce protests both domestically, including by its local fishery industry, and internationally, from environmental organizations and governments of nearby countries such as Korea and China.
A massive earthquake and tsunami struck Japan on March 11, 2011, causing a meltdown at the Fukushima plant, operated by Tokyo Electric Power Company. For the past decade, Japan has struggled over what to do with radioactive water stored in huge tanks.
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A government panel in February issued a report recommending releasing the water into the ocean as the most realistic plan. The government and the plant operator, Tokyo Electric Power Co., or TEPCO, say all radioactive materials but tritium can be safely removed, and that tritium is largely harmless.
The plant now has more than 1.2 million tons of the water stored in 1,000 huge tanks that occupy a large amount of space at the plant. TEPCO says that it will run out of space in the summer of 2022 and that the tanks hamper the decommissioning process.
Suga did not give a timeline, though a decision is expected in weeks, if not months. An actual release would be about two years away because TEPCO still has to set up a facility for a release and have it authorized by the Nuclear Regulation Authority, officials said. A controlled release of the water will take decades.
The plant suffered a triple meltdown in the March 2011 earthquake and tsunami and is undergoing decades-long decommissioning. The contaminated water, a mixture of injected cooling water and groundwater that flows into the reactor area, has accumulated since the accident.
The government and TEPCO say water treatment systems can remove all but water-soluble tritium, though currently 70% of the water contains other radioactive materials exceeding allowable limits. TEPCO says it can meet the safety standard by running the water for a second round of treatment before releasing it.
Suga visited the Fukushima plant last month and said he hoped to make a decision as soon as possible.
On Wednesday, Japanese officials from the foreign and industry ministries provided an online session for foreign diplomats to provide updates on the water situation.
Nuclear officials inside and outside of Japan have said a controlled release of the water into the ocean is the only realistic way of getting rid of the water safely.
Nuclear Regulation Authority chairman Toyoshi Fuketa recently said that tritium below allowable limits is routinely released from nuclear plants around the world. He said he is not concerned about safety, but understands psychological and reputational concerns about the water associated with the Fukushima disaster. He said careful monitoring of the water samples is crucial to gain public understanding.
But some scientists say the long-term environmental impact from radioactive water is unknown and could pose higher risks than explained. Ken Buesseler, a marine biologist at the Woods Hole Oceanographic Institution, said in a recent article that not only tritium but how other isotopes affect marine life should be carefully examined.