Government pledges to make water safe before release, but plan draws swift condemnation.
Japan will release more than 1 million tonnes of contaminated water from the ruined Fukushima nuclear power station back into the sea, the government said on Tuesday, in a decision that drew swift condemnation from environmental groups and is likely to anger fishing groups and neighbouring countries.
The work to release the water will begin in about two years, the government said, and the whole process is expected to take decades.
Tokyo Electric Power, which operates the plant, will handle the process.
“On the premise of strict compliance with regulatory standards that have been established, we select oceanic release,” the government said in a statement after relevant ministers formalised the decision.
The water, equivalent to about 500 Olympic-sized swimming pools, needs to be filtered again to remove harmful isotopes and will be diluted to meet international standards before any release into the ocean.
Greenpeace Japan said it “strongly condemned” the decision.
“The Japanese government has once again failed the people of Fukushima,” Kazue Suzuki, Climate Change and Energy at Greenpeace Japan, said in a statement. “The government has taken the wholly unjustified decision to deliberately contaminate the Pacific Ocean with radioactive wastes. Rather than using the best available technology to minimize radiation hazards by storing and processing the water over the longer term, they have opted for the cheapest option.”
On Monday, the environmental group said it had gathered 183,754 signatures from Japan and South Korea in a petition against the plan.
Greenpeace International’s Executive Director Jennifer Morgan said the planned discharge would also be a violation of Japan’s obligations under the United Nations Convention on the Law of the Sea (UNCLOS) and that the move would be “strongly resisted” in the months ahead.
The announcement of the plan, 10 years after the nuclear power station was devastated in a tsunami triggered by one of the most powerful earthquakes ever recorded, is also another blow to the fishing industry in Fukushima, which has opposed the release for years.
Five special rapporteurs from the United Nations said in March that the contaminated water remained a risk and that the ocean discharge plan could not be an “acceptable solution”.
The water, used to cool the reactors after the meltdown in March 2011, is currently stored in tanks in and around the plant, on Japan’s northeast coast.
US State Department spokesman Ned Price, noted Japan had been managing the aftermath of the disaster in “close coordination” with the International Atomic Energy Agency.
“In this unique and challenging situation, Japan has weighed the options and effects, has been transparent about its decision, and appears to have adopted an approach in accordance with globally accepted nuclear safety standards,” Price said in a statement.
Tens of thousands of people were evacuated after the disaster and the UN says about 40,000 people remain unable to return to their homes because of the radioactive contamination. Decommissioning the plant and cleaning up the radiation is expected to take decades.
The decision comes about three months ahead of the Tokyo Olympics, which were delayed by a year because of the COVID-19 pandemic. Some events are planned to take place as near as 60 kilometres (35 miles) from the ruined Fukushima Daiichi plant.