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Thousands of Liters of Radioactive Wastewater Leak in Fukushima Mishap
A Chinese official implored Japan to "face up to the concerns of its neighboring countries and the international community."
Feb 08, 2024
Thousands of liters of radioactive wastewater from the destroyed Fukushima Daiichi Nuclear Power Station in Japan leaked from the outdoor vent of a filtering device, the company that operates the facility said Wednesday.
Tokyo Electric Power Company (TEPCO) said about 5,500 liters of both contaminated and filtered water leaked when a valve was left open during cleaning. The company, which said it discovered the leak on Wednesday morning, warned that some of the water—which is believed to contain 220 times the level of radioactivity required for government reporting—may have seeped into the ground.
"TEPCO has confirmed that there was no significant fluctuation in radiation measurements recorded at the site," the International Atomic Energy Agency (IAEA) said in a statement. "The event does not pose any risk to the public and there is no environmental impact off-site."
The Fukushima plant, located about 150 miles northeast of Tokyo, was catastrophically damaged during the massive March 2011 earthquake and tsunami that caused meltdowns in three of the facility's reactors.
Last July, the IAEA approved a Japanese plan to gradually release more than 1 million metric tons of filtered Fukushima wastewater into the Pacific, despite years of warnings from environmentalists and widespread opposition by people in the region.
News of the leak prompted an angry response from the Chinese government.
"Japan's repeated accidents in the process of treating Fukushima nuclear-contaminated water have fully exposed the chaos and disorder of TEPCO's internal management," a spokesperson for the Chinese Embassy in Tokyo said on Thursday, according to the South China Morning Post.
"The Japanese government's supervision measures are lacking and ineffective, which once again proves that the nuclear-contaminated water treatment equipment lacks long-term reliability," the official added.
Asserting that "the discharge of the Fukushima nuclear-contaminated water into the sea is related to the health of all mankind, the global marine environment, and international public interests," the spokesperson reiterated calls for Japan to "face up to the concerns of its neighboring countries and the international community."
The new leak follows the October 2023 accident at a separate Fukushima wastewater treatment facility in which four workers were sprayed with radioactive liquid waste while cleaning pipes. Two of the workers were briefly hospitalized for skin contamination, although none showed symptoms of radiation poisoning.
There have been regular demonstrations against the Fukushima wastewater dump in South Korea and China—two countries that, like many others with nuclear power plants, have discharged far greater quantities of treated radioactive wastewater into oceans and other bodies of water than Japan says it will release.
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Fish Near Fukushima Contained Radioactive Cesium 180 Times Over Japan's Limit
The fish was caught near a drainage outlet where water from melted nuclear reactors flows—some of the same water that is to be treated and released from the power plant starting next month.
Jul 24, 2023
With the Tokyo Electric Power Company planning to begin a release of 1.3 million tonnes of treated wastewater from the former Fukushima Daiichi nuclear power plant in Japan next month, reports of radioactive fish in the area have raised alarm in recent years—and new reporting on Sunday revealed that the problem is far from mitigated, prompting questions about how dangerous the company's plan will be for the public.
The plant operator, known as TEPCO, analyzed a black rockfish in May that was found to contain levels of radioactive cesium that were 180 times over Japan's regulatory limit, The Guardianreported.
The fish was caught near drainage outlets at the plant, where three nuclear reactors melted down in March 2011 during a tsunami.
Rainwater from the areas surrounding the reactors flows into the area where the fish was caught.
The high level of cesium—which, depending on the level of exposure, can cause nausea, vomiting, diarrhea, bleeding, coma, and death in people who eat contaminated food—was discovered as TEPCO prepares to begin the discharge of treated wastewater which has been used to cool fuel from the melted reactors. The wastewater has mixed with rainwater and groundwater since the tsunami.
TEPCO has acknowledged that fish near the drainage outlets have been unsafe for consumption, as the concentration of cesium in seabed sediment in the area has measured more than 100,000 becquerels per kilogram. The maximum legal level is 100 becquerels per kilogram.
"Since contaminated water flowed into the Fukushima Daiichi nuclear power station port immediately after the accident, TEPCO has periodically removed fish from inside the port since 2012," an official for the company told The Guardian.
A fish was detected to have high levels of radiation near Fukushima in January 2022, with authorities positing that the fish had escaped from the drainage outlet. Shipments of black rockfish caught off the coast of Fukushima prefecture were promptly suspended and have not been resumed.
More than 40 fish with cesium levels over the legal limit were found in the plant's port between May 2022 and May 2023, and 90% came from the inner breakwater where water flows from the area around the melted reactors.
The Nuclear Regulation Authority in Japan and the United Nations' International Atomic Energy Agency (IAEA) have both given their approval of TEPCO's plan to release the wastewater into the Pacific Ocean, which it says it needs to do to secure space for decommissioning the plant. The discharge process, using an Advanced Liquid Processing System (ALPS), would take decades to complete.
While the IAEA said earlier this month the plan will have a "negligible radiological impact to people and the environment," Paul Dorfman of Ireland's Radiological Protection Advisory Committee said Monday that reports like the one about the contaminated rockfish are likely "far from over."
"Believing [and] pretending some things are not harmful because it is convenient is literally killing the planet," said American University sociologist Celine-Marie Pascale, comparing the ecological and climate crisis to authorities' insistence that the water discharge is safe. "Corporate interests triumph at global expense once again."
Officials in Hong Kong have said they will ban food imports from 10 prefectures in Japan if the release moves forward in August, and some Chinese wholesalers have stopped accepting seafood imports from the country.
In addition to concerns about cesium, TEPCO has admitted that the ALPS it plans to use may not eliminate isotopes including ruthenium, cobalt, strontium, and plutonium. The system is also not able to remove tritium, the radioactive isotope of hydrogen.
Masanobu Sakamoto, president of JF Zengyoren, Japan Fisheries Cooperatives, said in June that the group "cannot support the government's stance that an ocean release is the only solution."
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China Says IAEA Approval of Fukushima Water Release Should Not Be Final 'Green Light'
"What impact will the long-term accumulation and concentration of radionuclides bring to the marine environment, food safety, and people's health?" the Chinese Ministry of Foreign Affairs inquired.
Jul 05, 2023
Anxiety is growing this week in Asian and Pacific island nations after the United Nations' nuclear regulator approved Japan's plan to dump treated wastewater from the destroyed Fukushima nuclear power plant into the ocean—a course of action for which the Chinese government said Tokyo would "bear all the consequences."
"Simply for saving cost, Japan has insisted on discharging the nuclear-contaminated water into the sea in disregard of the concerns and opposition from the international community and taken the Pacific Ocean as the 'sewer,'" the Chinese Ministry of Foreign Affairs (CMFA) said on Tuesday. "We believe that the IAEA report should not be the 'shield' or 'green light' for Japan's discharge of nuclear-contaminated water into the ocean."
The ministry's statement came in reaction to the International Atomic Energy Agency's (IAEA) approval on Tuesday of Japan's plan to gradually release more than 1 million metric tons of filtered Fukushima wastewater into the Pacific despite years of warnings from environmentalists and the overwhelming opposition of people in the wider region.
Tokyo Electric Power Company's (TEPCO) Fukushima Daiichi Nuclear Power Station, located about 150 miles northeast of the capital, was catastrophically damaged during the massive March 2011 earthquake and tsunami that caused meltdowns in three of the facility's reactors.
"No matter what the report says, it will not change the fact that Japan will release millions of tons of Fukushima nuclear-contaminated water into the Pacific Ocean in the next three decades," CMFA said. "Will Japan's purification facility be effective in the long term? Can the international community be timely informed when the discharged water exceeds the discharge limit? What impact will the long-term accumulation and concentration of radionuclides bring to the marine environment, food safety, and people's health? These are the questions that the IAEA report failed to answer."
"We once again urge the Japanese side to stop its ocean discharge plan, and earnestly dispose of the nuclear-contaminated water in a science-based, safe, and transparent manner," the ministry added. "If Japan insists on going ahead with the plan, it will have to bear all the consequences arising from this. We urge the Japanese side to work with the IAEA to put in place as soon as possible a long-term international monitoring mechanism that would involve stakeholders including Japan's neighboring countries."
"We once again urge the Japanese side to stop its ocean discharge plan, and earnestly dispose of the nuclear-contaminated water in a science-based, safe, and transparent manner."
The government of one of those neighboring countries, South Korea, said Wednesday that it accepts the IAEA's approval of the wastewater release.
"It has been the government's long-standing stance to recognize the IAEA as a prestigious internationally agreed-upon agency, and we hold respect for its findings," Office for Government Policy Coordination First Deputy Chief Park Ku-yeon said during his daily press briefing.
However, a Gallup poll of more than 1,000 South Korean adults last week found that nearly 80% of respondents are worried about possible ocean and seafood contamination from the wastewater dump.
South Koreans have in recent days been stockpiling seafood and salt amid growing safety concerns over the impending wastewater release, for which no date has yet been set.
"I recently bought 5 kilograms of salt," Lee Young-min, a 38-year-old woman in Seongnam, toldReuters last week. "As a mother raising two children, I can't just sit back and do nothing. I want to feed them safely."
There have been regular protests against the planned Fukushima wastewater dump in South Korea and China—two countries that, like many others with nuclear power plants, have discharged far greater quantities of treated radioactive wastewater into oceans and other bodies of water than Japan plans to release.
"Nuclear sites all over the world... discharge diluted wastewater to seas, rivers, and lakes. This has been going on for decades without significant impacts," University of Portsmouth environment science professor Jim Smith toldScience Media Centre last week.
"For example, the La Hague reprocessing facility releases about 10,000 terabecquerels of tritium per year into the English Channel," Smith continued. "Radiation doses from this are very low and there is no evidence of significant ecosystem impacts."
"The planned release from Fukushima of 22 terabecqurels per year to the Pacific Ocean is about 450 times lower than the La Hague releases and 50 times lower than releases from the U.K's Sellafield facility," he noted, adding that claims of significant risks to the planned Fukushima release "are not founded in scientific evidence."
"Dilution is no longer the solution to pollution, so whilst the Japanese may dispose of their wastewater in the interim, it would be a good opportunity to look at other disposal methodologies in the future."
However, Tony Hooker, director of the Center for Radiation Research, Education, and Innovation at the University of Adelaide in Australia, said that "whilst this disposal plan meets the scientific and regulatory requirements for the disposal of radiation into the sea, and no environmental or human health impacts are likely to be observed, there is a growing question regarding the use of the sea as a dumping ground when our oceans are already stressed and struggling."
"Dilution is no longer the solution to pollution, so whilst the Japanese may dispose of their wastewater in the interim, it would be a good opportunity to look at other disposal methodologies in the future," Hooker added. "The Pacific Island Forum Scientific Panel has proposed to use the wastewater to make concrete, therefore locking up the residual radioactive tritium."
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