TOKYO — Japan’s government said Tuesday it has decided to start releasing massive amounts of radioactive water stored in tanks at the wrecked Fukushima nuclear plant in two years after treatment.
The decision, long speculated but delayed for years because of safety concerns and protests, came Tuesday at a meeting of cabinet ministers who endorsed the release as the best option.
The water has been accumulated and stored in tanks at the Fukushima Daiichi nuclear power plant since its 2011 meltdown after a massive earthquake and tsunami, causing cooling water to leak from the damaged reactors.
Its operator, Tokyo Electric Power Co., says its storage capacity will be full in the fall of 2022.
Prime Minister Yoshihide Suga told the ministers’ meeting that the government adopted the release to sea as “most realistic” and that the disposal of the water is “unavoidable in order to achieve Fukushima’s recovery.”
Fukushima nuclear disaster.
— AFP News Agency (@AFP) April 13, 2021
Around 1.25 million tonnes of water has accumulated at the site of the nuclear plant, which went into meltdown following a tsunami in 2011.
It includes water used to cool the plant, as well as rain and groundwater that seeps in daily pic.twitter.com/5jdk8MtWA8
TEPCO and government officials say tritium, which is not harmful in small amounts, cannot be removed from the water, but all other selected radionuclides can be reduced to levels allowed for release. Some scientists say the long-term impact on marine life from low-dose exposure to such large volumes of water is unknown.
Under a report of the basic plan adopted by the ministers Tuesday, TEPCO will start releasing the water in about two years after building a facility under the regulatory authority’s safety requirements.
