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New Public TV Documentary on Fukushima: Meltdown: Cooling Water Crisis

A shocking new 49-minute documentary from Japan’s public television broadcaster NHK titled “MELTDOWN: Cooling Water Crisis,” reveals new information on how corporate policy undermined efforts to keep the three destroyed Fukushima-Daiichi reactors stable one week after the triple reactor meltdown disaster began. See video here. Hear an interview related to the film here.

January 2, 2021 by Nukewatch Leave a Comment

Japan Waffles Over Plan to Dump Radioactive Water Tainted with Tritium, Strontium, Cesium, etc. 

Nukewatch Quarterly Winter 2020-2021

News was leaked in early October that Japan had decided to release over one million metric tons of Fukushima’s radioactive waste water into the Pacific.

But on October 23, the Minister of Economy, Trade, and Industry Hiroshi Kajiyama told a press conference “the government has no plan to make a decision on what to do with over [one million metric tons] of treated water,” and Kyodo News reported that the government had “put off a decision.”

Flipping again on October 28, the AP reported that “Japanese Prime Minister Yoshihide Suga says his government is working on the final details of a plan to release” the tainted cooling water, a process that would reportedly involve dilution and gradual dumping over many years’ time.

Tanks hold over 1.2 million metric tons of radioactive waste water left from cooling melted fuel under the three destroyed reactors at Fukushima, Japan. The amount of contaminated waste water increases by about 150 tonnes a day because the hot melted wreckage requires cooling water to be continuously poured over it.

Critics of the dumping proposal called the plan a bailout of Tokyo Electric Power Co. (Tepco), which owns the wreckage. Local and national representatives of the fishing community traveled to Tokyo in October to protest to federal ministers. Nongovernmental experts have recommended costlier alternatives to ocean dumping including evaporation, long-term storage, mixing with concrete for burial, or buying additional tank farm acreage.

Although the stored water has been through Tepco’s novel filter system known as ALPS, the process has largely failed. About 70 percent of the stored waste water contains deadly isotopes that Tepco earlier claimed would be removed.

Dr. Gordon Edwards, president of the Canadian Coalition for Nuclear Responsibility, reported about the waste water Oct. 26: “Radioactive varieties of iodine, ruthenium, rhodium, antimony, tellurium, cobalt, and strontium have been reduced by ALPS but not eliminated. In 2017, more than half of the samples studied showed levels of radioactive contamination for these materials that are above legal limits. In the case of strontium-90, a bone-seeking radioisotope, some 65,000 tonnes of water had levels 100 times above the legal limit even after being treated by ALPS.”

Tepco, trying to quell the uproar over the ALPS failure, announced that it can re-filter the waste before piping it into the Pacific. The fishing industry and neighboring countries including South Korea oppose any ocean release of tritium and other radioactive contaminants which would eventually contaminate seafood as the materials move up the food chain. An Oct. 9 editorial in the Korea Times that condemned the dumping threat warned of an “environmental disaster” that could “destroy the marine ecosystem.”

Independent scientists argue that long-term food and environmental impacts from radioactive seawater are unknown and could pose higher risks than Japan’s environmental, agricultural, and industrial ministries have claimed. Ken Buesseler, a marine biologist at the Woods Hole Oceanographic Institution, wrote recently that not only tritium but other isotopes that affect marine life should be carefully examined.

—JL

Filed Under: Environment, Fukushima, Newsletter Archives, Nuclear Power, Quarterly Newsletter, Radiation Exposure, Radioactive Waste

January 2, 2021 by Nukewatch Leave a Comment

Radiation Again Reported at Japan’s Summer Olympic Sites & in Tokyo

Nukewatch Quarterly Winter 2020-2021

A new study has found consequential radioactive contamination at scores of sites in areas set for next summer’s Olympic and Paralympic games in Fukushima Prefecture and Tokyo. The study follows on and corroborates a March report by Greenpeace—“Radioactivity on the Move 2020”—that found “the widespread presence of radioactive hotspots in Fukushima City and the (Olympic) J-Village” where “radioactive contamination is not under control.”

The new peer-reviewed article, in the journal Environmental Engineering Science, explains the authors’ study of radioactive dusts and dirt at Japanese Olympic sites and throughout Northern Japan. The report details findings that detected modest radioactive contamination at Olympic venues, and significant contamination at Japan’s National Training Center.

To assess radioactive contamination caused by Fukushima’s triple reactor meltdowns, a total of 146 independent samples were collected from sites in Fukushima Prefecture, Tokyo, and the heavily traveled corridors between these locations.

The study “Radioactive Isotopes Measured at Olympic and Paralympic Venues in Fukushima Prefecture and Tokyo, Japan” reached four major conclusions outlined by the authors:

1) Different types of alpha and beta radioactive micro-particles were released at other times and landed in various locations throughout Japan. “The exclusive use of cesium-137 beta activity levels as a proxy for total internal and external exposure, therefore, introduces dose assessment errors.”

2) “Rooftops previously decontaminated in Minamisoma are re-contaminated by airborne atmospheric dust containing radionuclides … from the Fukushima meltdowns. The data show a need for continuing reassessment and potentially, additional remedial work on many sites in Fukushima Prefecture.”

3) The Tokyo Olympic venues had radioactivities similar to sample sites in the US. In contrast, Olympic sites in Northern Japan near Fukushima contained an average of about twice as much radioactivity as Tokyo, with plutonium identified at the J-Village National Training Center.

4) Non-Olympic sites throughout Japan averaged 7.0 times greater beta activity than the Tokyo Olympic venues. These data show that clean-up efforts emphasized the Olympic venues over cleaning other contaminated parts of Japan.

The Japanese government’s aggressive portrayal of the North and its Olympic sites as decontaminated and safe disregard the health and safety of the athletes, spectators, officials, and journalists who are expected to participate in the games, and of course of the year-round residents. —JL

—Data and links to the peer-reviewed article are available from Fairewinds Energy Education.

Filed Under: Environment, Fukushima, Newsletter Archives, Nuclear Power, Quarterly Newsletter, Radiation Exposure, Radioactive Waste

January 2, 2021 by Nukewatch Leave a Comment

Health Risks of Tritium: The Case for  Stronger Standards

Nukewatch Quarterly Winter 2020-2021

Editor’s note: Japanese government ministers, nuclear industry lobbyists, and some academics claim that releasing huge volumes of radioactive tritium into the Pacific is so commonplace that the danger it poses to health is negligible. What follows are excerpts from a detailed article about tritium risks by Arjun Makhijani, Brice Smith, and Michael C. Thornel of the Institute for Energy and Environmental Research, in the group’s magazine Science for Democratic Action, February 2007. The excerpts are introduced by a note from Arjun sent Nov. 25, 2020:

These excerpts regarding tritium refer to tritium-contaminated freshwater. The risks of contaminating seawater with tritium relate to the ways tritiated water will become part of oceanic ecosystems. It will be incorporated, literally, by everything from algae to fish. Pregnant women consuming tritium-contaminated seafood could be vulnerable to impacts like those described in the article excerpted below. A thorough investigation of such impacts, with public comment, is essential before any decision to discharge tritium-contaminated water accumulated at Fukushima to the ocean is made.

—Arjun Makhijani

With a relatively short half-life of 12.3 years, tritium is highly radioactive. For example, one gram (approximately the weight of a quarter of a teaspoon of salt) of tritium in tritiated water will contaminate almost 500 billion gallons of water up to the current drinking water limit of 20,000 picocuries per liter set by the US Environmental Protection Agency. One ounce of tritiated water would contaminate the entire annual flow of the Savannah River above the present drinking water limit.

… [T]ritiated water and organically bound tritium can cross the placental barrier. This tritium can then be incorporated into an embryo/fetus and irradiate rapidly dividing cells, thereby raising the risk of birth defects, early miscarriages, and other problems.

… A related concern is the fact that low-energy beta particles, like those emitted by tritium, are often much more effective at causing harm than currently assumed by regulations.

… As noted, the low energy of the tritium beta particle can result in the deposition of all the energy in a short distance, which could be particularly damaging if the tritium is in the DNA.

… Considering that ova are formed once per lifetime, the effects of radiation on the reproductive system of female fetuses, and the possible effect on the children of females irradiated in the womb, could be significant.

… The increased risks to pregnant women and the embryo/fetus include early miscarriages, malformations, and genetic defects. Risks can also be multi-generational given that a woman’s ova are produced while she is in her mother’s womb.

… We have concluded that 400 picocuries per liter for surface water should be considered as an interim target limit for off-site surface water at all nuclear power plants and US Department of Energy nuclear sites while a better understanding of the impacts of tritium is developed. This level is 50 times lower than the EPA’s current drinking water limit and corresponds to a lifetime risk of a fatal cancer of about one in a million.

… The case for tightening the tritium limits as a preventive measure is even more persuasive when one considers the higher RBE [relative biological effectiveness] of tritium, its possible non-cancer health effects, its possible synergisms with chemical toxins, and its potential effects arising from exposure in utero at certain crucial times during pregnancy….

—See the full article at: https://ieer.org/wp/wp-content/uploads/2012/01/SDA-14-4.pdf

Filed Under: Fukushima, Newsletter Archives, Nuclear Power, Quarterly Newsletter, Radiation Exposure, Radioactive Waste

October 11, 2020 by Nukewatch Leave a Comment

Fukushima Wastewater & Cleanup Costs Pile Up

Nukewatch Quarterly Fall 2020
By John LaForge

At Fukushima-Daiichi in Japan, the triple disasters of earthquake, tsunami and three reactor meltdowns have caused the deaths of 15,899 people and left 2,529 unaccounted for, mostly in the three hardest-hit prefectures, according to the National Police Agency.

The ferociously radioactive melted fuels that burned into the hard foundations of the three reactors are also extremely hot thermally and must be continually cooled with water which is poured into the wreckage.

This cooling water also becomes highly radioactive after coming in contact with the molten reactor fuel and so is being collected in large, hastily built tanks on the coastal reactor site. Tokyo Electric, or Tepco, has collected nearly 1.2 million metric tonnes (2,204.6 pounds) of contaminated water in about 1,000 tanks. The collected waste water also includes rain and groundwater that runs across the melted cores after pouring through earthquake-caused cracks in reactor foundations.

Tepco says it will run out of space for more tanks in two years, and is lobbying vigorously to win permission to dump the waste water into the Pacific Ocean.

South Korea, the fishing community and other near Pacific neighbors have raised strenuous objections to any such dumping, especially after Tepco admitted it lied about its water filtration system which turns out had not removed dangerous cesium, strontium and other radionuclides from the water.

Nevertheless, Japan’s government, the International Atomic Energy Agency and industry lobbyists appear willing to reject public opinion and the concerns of allies in order to save Tepco from financial collapse. Last January 31 a panel of experts picked by the Ministry of International Trade and Industry recommended that the pollution be piped into the Pacific Ocean.

In March this year Tokyo Electric Power Co. estimated that 1.37 trillion yen ($12.9 billion) will be needed over 12 years to remove the melted reactor fuel just from units 2 and 3.

The wrecked fuel in unit 1 presents such a vexing complex of problems that the firm didn’t venture a guess at its removal cost.

Filed Under: Fukushima, Newsletter Archives, Quarterly Newsletter, Radioactive Waste

August 1, 2020 by Nukewatch Leave a Comment

Nuclear Reactors & the Quaky, Rising Sea

Nukewatch Quarterly Summer 2020

Forty percent of the world’s nuclear reactors sit on coastlines, vulnerable to multiple climate catastrophes. With sea levels expected to rise 3.28 feet or more by 2100, reactors like St. Lucie in Florida, don’t have a chance. Operators of Florida’s Turkey Point reactor intend to run it for 80 years. The Nuclear Regulatory Commission claims that rising sea levels and their effect on Turkey Point are “outside the scope of the agency.” Thus, in granting an extended operating license to Turkey Point, rising sea levels don’t even figure.

Fukushima stands as the case study of Reactors v. Ocean. Site of the world’s only triple meltdown, caused by an earthquake and its follow-on tsunami, Fukushima still spews radiation into the Pacific daily, nine years after it began. According to the Center for Marine and Environmental Radioactivity, coastal areas report an increase in cesium-137 from Fukushima, first detected 100 miles off the California coast in 2014. Today, of the 56 reactors currently under construction, 93% face the fury of rising tides and ever-more-severe hurricanes, cyclones, and typhoons. Unfortunately, China, Indonesia, and East Asia continue to build and host the reactors most at risk, since these regions are the most and first affected by the Earth’s warming.

As the nuclear industry continues to blunder ahead building new reactors and operating old ones on vulnerable seafronts, coastal communities continually face Fukushima Roulette.

—Climate News Network, Feb. 14, 2020; Bloomberg, Apr. 19, 2019; Beyond Nuclear, Sept. 19, 2019; Woods Hole Oceanographic, <cmer.whoi.edu>

 

Filed Under: Environment, Fukushima, Newsletter Archives, Nuclear Power, Quarterly Newsletter, Radioactive Waste

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