Nuclear Meltdown Watch

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Re: Nuclear Meltdown Watch

Postby crikkett » Thu May 05, 2011 10:11 am

http://www.csmonitor.com/USA/2011/0504/ ... ize-Unit-1

Fukushima prepares for cold shutdown: Will it finally stabilize Unit 1?

By Mark Clayton, Staff writer / May 4, 2011

Tokyo Electric Power Company says it is moving ahead with plans to bring the Unit 1 reactor at the Fukushima Daiichi plant to "cold shutdown" within the week, Japan Times reported today.

If that happened, it would be a major shift from the nuclear plant's current status, which the International Atomic Energy Agency still lists as "very serious." Cold shutdown means bringing the temperature inside the reactor down below the boiling point of water, so no steam pressure is being produced – a significant step if it happens, US experts said.

Before the temperature can be reduced, the building must be vented of radioactive air to allow operators to approach the reactor. In addition, American and British scientists have expressed concerns about the proposed step and newly discovered evidence of an ongoing radiation leak into the Pacific Ocean.

Bringing Unit 1 to cold shutdown

But important questions remain about how safe the cold shutdown process will be. To bring down the temperature in Unit 1, the company plans to inject water into the primary containment structure – a large, light-bulb-shaped container that surrounds the inner reactor vessel that holds the uranium fuel core.

Will the primary containment structure be able to hold the many tons of water that will fill it – or will it leak or split because it is damaged? Will a new quake or aftershock damage a containment structure that is far heavier because it is full of water?

"They're basically getting ready to run a big experiment," says Edwin Lyman, a nuclear reactor expert with the Union of Concerned Scientists, a nuclear industry watchdog group that is closely monitoring the situation in Japan. "It sounds like they're assuming that the structural issues [with the primary containment structure] aren't that serious – and there's debate over that."

Even so, filling up the containment structure "seems like a reasonable thing to do if they can't cover the cores in any other way," Dr. Lyman adds. "They're just stuck with doing whatever is going to work. The problem is, they're learning by experimentation – not by some well-thought through contingency plan."

The operator of the Fukushima Daiichi plant – Tokyo Electric Power Company (TEPCO) – last week revised estimates of the amount of damage sustained by the fuel cores of Units 1-3. In that estimate, the company revised downward the amount of core damage in Unit 1 from 70 percent to 55 percent. At the same time, it bumped up the damage level estimates for Unit 2 from 30 to 35 percent and for Unit 3 from 25 to 30 percent.

Preparing Unit 1

Before Unit 1 can be filled with water, though, workers need to remove radioactive air from the building in order to be able to get near it. TEPCO said Tuesday that eight workers would be ready to enter the heavily damaged building by Wednesday – the first time anyone would enter since the building was torn apart by a hydrogen explosion on March 12, the day after the plant was hit by an earthquake and tsunami.

To make the building safe to enter, the company began installing ventilation equipment at Unit 1’s turbine building Tuesday, the Yomiuri Shimbun newspaper reported on its website. Six such devices will extract highly radioactive air from the reactor building through hoses, the company said.

To prevent the radioactive air from leaking into the turbine building, a housing is being built that will cover the doors and provide "negative pressure," so air flows into the building, but not out of it. Hoses will be run to the reactor building so ventilation can start Thursday,
the newspaper reported.

American nuclear regulators wary of proposed steps

Still, US regulators are wary. Japanese authorities up to now have made only slight progress stabilizing the damaged nuclear plant, the chairman of the Nuclear Regulatory Commission told the House Energy and Commerce Committee on Wednesday.

“While we have not seen or predicted any new significant challenges to safety at the site, we have only seen incremental improvements towards stabilizing the reactors and spent fuel pools,” said Gregory Jaczko, NRC chairman in his written remarks.

The NRC is reviewing the 104 nuclear plants currently operating in the US, to determine whether changes are needed to keep them safe. Their first report is expected next week.

New discovery: Seafloor radiation 100-1,000 times normal

Concern is also bubbling over radiation levels in the ocean near the plant – apparently due to an undiscovered leak from a damaged reactor. Ocean radiation readings taken Friday from the seabed near the plant were 100-1,000 times usual levels, TEPCO told the Mainichi Times.

In meetings Tuesday in London, Japan's Minister of Foreign Affairs Takeaki Matsumoto appeared to accept Britain's offer of a team of experts to help monitor sea radiation, the Mainichi Times reported.
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Re: Nuclear Meltdown Watch

Postby crikkett » Thu May 05, 2011 10:18 am

http://www.atimes.com/atimes/Japan/ME05Dh01.html

Front line at Fukushima
Anne Roy interviews Paul Jobin

This interview concludes a two-part account of the use of contract workers in the Japanese nuclear power industry and particularly at the Fukushima power plant largely destroyed by the March 11 earthquake and tsunami. (Part 1: Dying for TEPCO, Asia Times Online, May 04, 2011.)

A specialist on Japan, sociologist Paul Jobin offers us his analysis at a moment when workers are attempting to get a hold on the situation at Fukushima.

We read that they are sleeping on the hard soil, that they have only two meals per day, and are rationed in drinking water. The Tokyo Electric Power Company (TEPCO) and its subcontractors allow little information to filter out concerning workers fighting on the front lines at the Fukushima power plant. Jobin knows these

places well. In 2002, while doing research on sub-contractors in the
nuclear industry, he interviewed managers and temporary workers in that plant. He analyzes the current situation in the light of this experience.

Anne Roy: What is known about the workers who currently work at the plant in Fukushima?

Paul Jobin: It's a paradoxical situation. There has never been so much said about nuclear issues in Japan, but information remains scarce about those who are at the heart of the volcano, in central Fukushima. [For a fortnight], we saw no people except the helicopter pilots who dropped the seawater, and now the soldiers of the national defense forces and firefighters, using firemen's lamps. We had to wait until Friday, March 25 to see the first photos of workers in full protective suits, these being worn inside the plant, where you could see the general state of disrepair, even in computer and control rooms, barely lit ... That day, three sub-contractors were taken to the hospital because they were seriously irradiated. That was the first time we heard officially about subcontractors. But when you know how a plant like that functions under normal circumstances, one can only assume that they comprised 90% of workers on site. They are the ones who do the maintenance work, and who receive the collective dose of radiation - these are the official figures.

But then there are different types of sub-contractors: at the very bottom of the pyramid there are, for example, temporary workers who use mops to clean the reactors, or who deal with used protective clothing. They receive the strongest doses. Then come the technicians (plumbers, electricians) who inspect facilities, piping and pumps, and at the very top, there are the technicians, managers and engineers of TEPCO, who enjoy higher wages and better protection. A number of temporary workers must be on-site, but for now, we do not really know who does what. What is certain is that all those who have worked so far have had to take large doses of radioactivity.

AR: Today, how many employees are there on the site?

PJ: [Going in to the last week of March], there were four teams of 50, or 200 workers. According to the most recent information [as of the first week of April], there would be six hundred. This figure might include fire fighters and soldiers, but this remains unclear. In a week, how many will there be? TEPCO had to mobilize its network of subcontractors for emergency recruiting in the region or even beyond.

According to the ads that circulate on SMS, and which are relayed on Twitter, wages offered are around 10,000 yen per day (US$122), which is about double the average salary for a young temporary employee but does not represent an exceptional offer either. This would mean that, despite the sacrifice of those who agree to go there, TEPCO continues to skimp on wages ... the Tokyo Shimbun published testimonies of people who refused to come to work at the plant.

A man of 27 had received an SMS offering a good salary, but since he has a little boy of three and a wife of 26, he did not want to leave them, imagining that he would face a high risk of premature death. Also a man 48 years of age testified. He lived 40 kilometers from the plant, and had been called by someone saying: "We are looking for people over 50 who could intervene in the reactor; the pay is much higher than usual."

You won't come? The wording "over 50" suggests that in order to come work on the site, you must be ready to die ... Elsewhere, I read that there are locals who are willing to do the maximum because they do not want to see everything lost for 30 years, or for 1,000 years, to come. Finally, on Saturday, April 2, the Mainichi newspaper published an interview with an employee of TEPCO who describes the extreme difficulty of the conditions for intervention and the patched-together systems they are compelled to use to protect themselves, like wrapping themselves in plastic bags, for lack of appropriate protective suits.

Only the bosses are furnished with dosimeters. According to another worker present on that day [of the tsunami], Friday 11, many simply went home carrying their dosimeter. TEPCO confirms that, due to the tsunami, a large number of dosimeters were damaged. Out of 5,000, there remain no more than 320. The manufacturer has virtually no more stock, and Toshiba has sent them only 50.

AR: They speak about a worker who was irradiated when he was working on the site while wearing small rubber boots. How do the employees protect themselves on the site?

PJ: This is true. It sounds totally inadequate, but how to do otherwise? Even in normal times, in this part of the reactor, you have to move very quickly to receive the smallest dose possible. That you can't do with lead soles. There exist coveralls with full masks, but these devices seem poorly designed and primitive compared to the challenge of the task.

So, in the absence of effective protection, one uses what is called "radiation protection". In Japanese, one speaks of "management of radioactivity". That's exactly what it is: manage the imposed collective dose administered to workers. The issue of radiation protection enters in direct conflict with that of plant safety because the more a plant ages, the more it "showers", as the Japanese workers say, the more it must be cleaned, and the more you must ask personnel to carry out repairs and maintenance.

Hence the extensive use of subcontractors. What makes the situation in Japan unique is that nuclear power was developed in the 1970s, and the use of subcontracting during periodic shut-downs has been systemic ever since. This organization of work has dramatic consequences for the health of workers and plant safety; hence the repetition of anomalies and other incidents, even before considering the issue of seismic risk.

AR: Why has the Japanese minister of health decided to raise the legal dose to be received by workers?

PJ: Since 2002, the International Commission on Radiological Protection (ICRP) recommends that an annual dose for nuclear workers not exceed 20 millisieverts (mSv) per year. But even in normal times, workers receive large doses, with consequences that are systematically denied or minimized.

In Japan, legislation has endorsed the standard of 20 mSv per year for workers, stipulating that the dose can be calculated as an average over a five-year period, with a maximum at a given time of 100 mSv during any two years. But as of March 19, TEPCO asked to boost the maximum dose to 150 mSv, and the Ministry of Health went further, raising it to 250 mSv - this perhaps to limit the number of possible applications for recognition of occupational disease.

On Thursday, March 31, the Nuclear Safety Agency (Nisa) announced that 21 workers had received doses above 100 mSv, but that none had exceeded 250, as if this meant they could escape without too much damage, when even the International Atomic Energy Agency believes that the situation remains "very serious" in Fukushima. And in fact, dose rates are now such (up to 1000 mSv per hour on Saturday, April 2) that intervention near the reactor seems impossible.

AR: Have there been victims recognized as having contracted occupational diseases due to their work at the plant?

PJ: In 2002, I counted eight cases recognized since 1991. Since then, there were few others, as far as is known, because there is a certain opacity in the system. I think for example of the case of Mr Nagao. He had worked in Fukushima 1 and 2 between 1977 and 1982 and received a cumulative dose of 70 mSv. Starting in 1986, he began experiencing all sorts of symptoms, lost his teeth, and in 1998, doctors diagnosed multiple myeloma. In 2002, he filed an application for recognition as having an occupational disease, which he obtained, not without difficulty, with the support of an associative network. Then he filed a lawsuit against TEPCO. His complaint was dismissed in 2009 in an all-too expeditious manner: the judge did not even bother to examine the medical opinions presented by the prosecution.

AR: You have conducted a study on the effects of mercury pollution in the sea off the coastal town of Minamata by the Chisso Petrochemical Plant [operating from 1932]. How were the victims treated in this disaster?

PJ: There is an important difference between these two disasters. In Minamata, there was no explosion, residents were not immediately aware of the danger, and fear came later. Yet by the 1920s, there was already an impact on fisheries, and fish numbers decreased (not because of mercury but because of emissions of other pollutants). From the 1940s, they saw dead cats and birds, then the first human victims in the mid-1950s. The creation of awareness of the threat took a long time. The first trial took place between 1969 and 1973 and concluded with a judgment against Chisso for a substantial sum of compensation for the plaintiffs.

Then there were many other trials, and it has been estimated that there was a total of at least 40,000 victims. Finally, in July 2009, a compensation law was passed, which was quite well received by many victims. From the first steps taken by the victims from Chisso in 1956 to 2010, it will have taken over 50 years of battle with the company and the state to see fairly complete compensation. This bodes ill for the current disaster, especially since the history of reparations for victims of Minamata disease occurred at a relatively prosperous time for Japan. Who knows now what will happen to Japan after a disaster like this? It was the third-largest economy in the world, but will it remain so?

As stated by Prime Minister Kan Naoto, this is truly a national disaster on a scale that Japan has not faced since the end of World War II. This is a catastrophe for the whole country. This will make it even harder for people to get redress.

Paul Jobin is Director, French Center for Research on Contemporary China, CEFC, Taipei Office, and Associate Professor, University of Paris Diderot.

Original French article at L'Humanite: "Pour travailler a Fukushima, il faut etre pret a mourir." Interview by Anne Roy. Translated April
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Re: Nuclear Meltdown Watch

Postby crikkett » Thu May 05, 2011 10:23 am

http://www.atimes.com/atimes/Japan/ME04Dh01.html

Dying for TEPCO
By Paul Jobin

While Tokyo Electric Power Company (TEPCO) experiences difficulties in recruiting workers willing to go to Fukushima to clean up the damaged reactors, the World Health Organization (WHO) is planning to conduct an epidemiological survey on the catastrophe. This is the first of two reports offering a worker-centered analysis of the Fukushima nuclear disaster.

In the titanic struggle to bring to closure the dangerous situation at Fukushima Nuclear Plant No1, there are many signs that TEPCO is facing great difficulties in finding workers. At present, there are nearly 700 people at the site. As in ordinary times, workers rotate so as to limit the cumulative dose of radiation inherent in maintenance and cleanup work at the nuclear site. But



this time, the risks are greater, and the method of recruitment unusual.

Job offers come not from TEPCO but from Mizukami Kogyo, a company whose business is construction and cleaning maintenance. The description indicates only that the work is at a nuclear plant in Fukushima prefecture. The job is specified as three hours per day at an hourly wage of 10,000 yen (about US$122). There is no information about danger, only the suggestion to ask the employer for further details on food, lodging, transportation and insurance.

Those who answer these offers may have little awareness of the dangers and they are likely to have few other job opportunities. A rate of $122 an hour is hardly a king's ransom given the risk of cancer from high radiation levels. But TEPCO and the Nuclear and Industrial Safety Agency (NISA) keep diffusing their usual propaganda to minimize the radiation risks.

Rumor has it that many of the cleanup workers are burakumin (a minority group dating from Japan's feudal era and still often associated with discrimination). This cannot be verified, but it would be congruent with the logic of the nuclear industry and the difficult job situation of day laborers. Because of ostracism, some burakumin are also involved with yakuza, or organized crime groups. Therefore, it would not be surprising that yakuza-burakumin recruit other burakumin to go to Fukushima. Yakuza are active in recruiting day laborers of the yoseba (communities for day laborers): Sanya in Tokyo, Kotobukicho in Yokohama, and Kamagasaki in Osaka. People who live in precarious conditions are then exposed to high levels of radiation, doing the most dirty and dangerous jobs in the nuclear plants, then are sent back to the yoseba. Those who fall ill will not even appear in the statistics. [1]

Before the catastrophe ...
According to data published by NISA, in 2009, there were 1,108 regular employees (seisha'in at Fukushima NP1. These were TEPCO employees, but may also include some employees from General Electric or Toshiba, Hitachi and Mitsubishi. But the vast majority of those working at Fukushima 1 were 9,195 contract laborers (hiseisha'in).

These contract employees or temporary workers were provided by subcontracting companies: they range from rank and file workers who carry out the dirtiest and most dangerous tasks - the nuclear gypsies described in Horie Kunio's 1979 book Nuclear Gypsy and Higuchi Kenji's photographic reports - to highly qualified technicians who supervise maintenance operations.

So even within this category, there is much discrepancy in working conditions, wages and welfare depending on position in the hierarchy of subcontracted tasks. What is clear is that the contract laborers are routinely exposed to the highest level of radiation: in 2009 according to NISA, of those who received a dose between 5 and 10 millisieverts (mSv), there were 671 contract laborers against 36 regular employees. Those who received between 10 and 15 mSv were comprised of 220 contract laborers and two regular workers, while 35 contract workers and no regular workers were exposed to a dose between 15 and 20 mSv.

Since contract laborers move from one nuclear plant to another, depending on the maintenance schedule of the various reactors, they lack access to their individual cumulative dose for one year or for many years. NISA compiles only the cumulative dose for each nuclear plant. The result is that the whole system is opaque, thus complicating the procedure for workers who need to apply for occupational hazards compensation.

... and after
On March 14, three days after the earthquake and tsunami that caused the damage at Fukushima, the Ministry of Health and Labor raised the maximum dose for workers to 250 mSv a year, where previously it was set at 100 mSv over five years (either 20 mSv a year for five years or 50 mSv for two years, which is in itself a strange interpretation of the recommendations of the International Commission on Radiological Protection's guideline stipulating a maximum of 20 mSv a year. The letter that the ministry sent the next day to the chiefs of labor bureaus to inform them of the decision justifies it on the grounds of the state of emergency, ignoring the safety of the workers. [2]

This could be a measure to avoid or limit the number of workers who would apply for compensation. Stated differently, it has the effect of legalizing illness and deaths from nuclear radiation, or at least the state's responsibility for them. Usually, in case of leukemia, a one year exposure to 5 mSV is sufficient to obtain occupational hazards compensation. The list of potential applicants could be very long in light of the number of workers already on the job, or who are likely to be recruited to dismantle the reactors. The project proposed by Toshiba to close down and safeguard the reactors would take at least 10 years. [3]

In short, the state's concern appears to be less the health of employees and more the cost of caring for nuclear victims. The same logic prevailed when, on April 23, the government urged children back to the schools of Fukushima prefecture, stating that the risk of 20 mSv or more per year was acceptable, despite the high vulnerability of children. Can the state be prioritizing the limitation of the burden of compensation for TEPCO and protection of the nuclear industry at large over the health of workers and children? [4]

Why subcontracting?
As early as the mid-1970s, the use of subcontracting labor in the nuclear industry was well established in Japan. In France, this trend would develop after 1988, reaching a rate of 80% by 1992. According to NISA's data, in 2009, Japan's nuclear industry recruited more than 80,000 contract workers against 10,000 regular employees. The initial goal was not necessarily to hide the collective dose, but to limit labor costs. But the fact is that whether in France or Japan, the nuclear industry nurtures a heavy culture of secrecy concerning the number of irradiated workers.

As far as we can know, based on the figures published by the Ministry of Health and Labor, before Fukushima's catastrophe, only nine former workers received compensation for an occupational cancer linked to their intervention in nuclear plants. [5] This number is probably very far from the reality of the victims, given the number of workers exposed and the numerous opacities of that system beginning with the fact that TEPCO and other electric power companies have always refused to disclose the list of their subcontractors.

The objective of epidemiological surveys
An epidemiological survey published in March, just before the catastrophe, was based on a huge cohort of 212,000 persons recorded between 1990 and 1999, out of the total of 277,000 who had worked in nuclear plants. The survey found a significant mortality ratio for only one type of leukemia and judged that other forms of cancer among this population could not be attributed to their exposure to radiation at nuclear plants.

One problem is that the survey only calculates mortality ratios, ignoring people who might have cancer but are still alive at the time of the survey. Such obvious methodological bias is frequent in this sort of surveys. In France and other countries, another bias is the tendency to ignore contract workers, though they receive the highest cumulative radioactive doses. Therefore, it is difficult to resist the conclusion that the very goal of these epidemiological surveys is to minimize the risks of nuclear radiation and encourage the nuclear industry's business as usual.

The same logic has prevailed at the WHO and International Atomic Energy Agency (IAEA) in their evaluation of Chernobyl's legacy. Compared to a mere 4,000 in the "definitive" United Nations report published in 2005, [6] the report published in November 2009 by the New York Academy of Sciences (based on more than 5,000 articles translated from Belorussian, Ukrainian and Russian) evaluated the total number of victims 985,000. [7] Of the 830,000 liquidators mobilized at Chernobyl, the Academy of Sciences report estimated that at least 112,000 had already died, compared to some 50 in the UN report.

While the conclusions of the two reports remain contested, even Nakajima Hiroshi, a former WHO director, has acknowledged that the control of WHO by IAEA on nuclear issues was problematic. [8] Therefore we can anticipate that the survey WHO is planning to conduct on Fukushima may provide the same anodyne conclusions.

Notes
1. In the 1980-90s, Fujita Yuko, then professor of physics at Keio University, distributed leaflets warning day laborers not to accept these dangerous jobs. See Higuchi Kenji's documentary in Kamagasaki.
2. Link.
3. On the decommissioning of nuclear plants, see NHK's recent documentary.
4. See the reaction of the chairman of the Japan Federation of Bar Associations to this decision, and the protest petition online.
5. For more details, see the reports of the Citizen Nuclear Information Center's homepage, mainly written by Watanabe Mikiko, who has provided constant follow up and support for these workers (use the following keywords: workers, worker exposure, Nagao Mitsuaki, Kiyuna Tadashi, Umeda Ryusuke, Shimahashi Nobuyuki.).
6. Link.
7. For a presentation of this survey, see this link. Alexey V. Yablokov (Center for Russian Environmental Policy, Moscow, Russia), Vassily B. Nesterenko, and Alexey V. Nesterenko (Institute of Radiation Safety, Minsk, Belarus). Consulting Editor Janette D. Sherman-Nevinger, Chernobyl: Consequences of the Catastrophe for People and the Environment (New York: New York Academy of Sciences, 2009).
8. See the following reports (French only) on the protests in Switzerland about the control of WHO by AIEA on nuclear issues: 1, 2.


Paul Jobin is director, French Center for Research on Contemporary China, CEFC, Taipei Office, and Associate Professor, University of Paris Diderot.

(Republished with permission from Japan Focus.)
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Re: Nuclear Meltdown Watch

Postby crikkett » Thu May 05, 2011 10:32 am

http://blogs.forbes.com/jeffmcmahon/2011/05/04/epa-halts-extra-radiation-monitoring-focus-shifts-to-seafood/

Jeff McMahon
EPA Halts Extra Radiation Monitoring; Focus Shifts To Seafood
May. 4 2011 - 9:26 am | 305 views | 0 recommendations | 2 comments

Albacore migrate from Japanese to U.S. waters. Image via Wikipedia

The Environmental Protection Agency has halted accelerated testing of precipitation, drinking water, and milk for radiation from the Fukushima nuclear disaster, the agency announced yesterday.

“After a thorough data review showing declining radiation levels related to the Japanese nuclear incident, EPA has returned to the routine RadNet sampling and analysis process for precipitation, drinking water and milk,” according to yesterday’s Daily Data Summary.

Milk and drinking water will return to a regular quarterly schedule and will next be tested in three months. Preciptation will be tested monthly.

The agency will continue to monitor air samples—where radiation is likely to appear first—in near real time and post the results, but “EPA is evaluating the need to continue operating the additional air monitors deployed in response to the Japan nuclear incident,” the summary states.

Mobile air monitors were deployed on Pacific Islands, in Alaska and along the West Coast to act as an early warning system for coming fallout.

Other U.S. radiation monitors have also recorded a decline in Fukushima radiation. Levels have dropped almost consistently in graphs posted by the Berkeley Radiological Air and Water Monitoring Team. The Community Environmental Monitoring Program based in Las Vegas last posted air filter results on April 18 after noting the radiation levels had peaked March 25.

But the situation at Fukushima remains unstable, with plumes of white smoke continuing to escape from two reactors.

“I would describe the situation as being not quite stable, but certainly not as highly dynamic as it was on march 21 when we last met on this subject,” said Marty Virgilio, an NRC deputy executive director, in testimony before the commission Thursday.

Radioactive emissions continue at the plant, Virgilio said, and they are difficult to monitor accurately:

There’s still feed and bleed operations in progress. That is a somewhat dynamic situation, as well as unfiltered and unmonitored release paths that remain to be a concern at the Fukushima site.

“One of the things that make it difficult for the Japanese in responding to this event—and for us to understand the exact situation—is that there’s suspect accuracy and failed instrumentation at the site, affecting all the units, that really impair our ability to get a clear and consistent picture of the situation.”

Japanese authorities have also been reporting declining levels of radiation in air and drinking water. The International Atomic Energy Agency issued this statement on gamma radiation at the plant:

A general decreasing trend has been observed in all locations since around 20 March.”

And this statement on coastal seawater:

The analysis for almost all sampling positions has shown a general decreasing trend in concentrations of the relevant radionuclides over time.”

But that “almost” is a big one: levels of Iodine-131 remained steady in coastal seawater from April 26 to April 30, the IAEA reported, a finding that belies Iodine-131’s short half-life and the dilution power of the ocean. I-131 was detected consistently at about 2.7 million picoCuries per liter. (For comparison, the EPA’s maximum contaminant level for I-131 in drinking water is 3 picoCuries per liter).

The Japanese dumped about 11,500 tons of water intentionally that contained the following concentrations of contaminants, according to the IAEA. (Amounts are given in megaBecquerels, one of which equals 27 million picoCuries):

5400 MBq/L of Iodine-131
1800 MBq/L of Cesium-134 and
1800 MBq/L of Cesium-137.
An unknown amount of contaminated water leaked into the ocean from a damaged reservoir.

Nothing Fishy


Simplified view of Pacific Ocean currents (NOAA)
The ocean dumping has raised fears of seafood contamination, particularly in species that are imported or that migrate from Japanese waters. Three U.S. government agencies sought to quell those fears with a joint statement yesterday.

The threat of radioactive contamination reaching American waters is so low that the Food and Drug Administration and the National Oceanic and Atmospheric Administration do not plan to test American seafood for it, those agencies said in the joint statement with EPA:

FDA and NOAA do not anticipate contamination of living marine resources in U.S. waters at this time. For this reason, sampling of U.S. harvested seafood is not currently planned.

via U.S. Seafood Safe… (pdf)

The joint statement follows an April 29 meeting between Secretary of State Hilary Clinton and Japanese Foreign Minister Takeaki Matsumoto. The two agreed to fight “rumors and reputation damage” that might harm Japan’s place in the supply chain, Matsumoto said.

FDA measures gamma radiation in 40 percent of seafood imported from Japan, according to the joint statement, and so far has detected nothing above background levels.

Japanese regulators have only found radiation in the sand lance, a fish that does not leave Japanese waters, the FDA said. None has been found in albacore tuna, a species known to migrate from Japanese waters to the U.S. West Coast:

The migration of tuna and other species of fish from the coast of Japan to U.S. waters would take days or months under the best of circumstances, and vessels fishing beyond U.S. waters must also travel several days to return to port. During that time needed for a fish contaminated by radiation in Japan to migrate, be caught and reach the market, the level of short-lived radionuclides such as I-131 would drop significantly through natural radioactive decay. To date, no significantly elevated radiation levels have been detected in migratory species, including North Pacific albacore.

The agencies said they would respond quickly if radioactive materials were deposited into the Kuroshiro Current, which flows from Japan to the U.S. West Coast, but it was not clear how they would determine that had happened.

“To screen for longer term impacts, NOAA’s National Ocean Service and the Environmental Protection Agency are exploring approaches to monitor seawater and sediment in areas along the western U.S. coast, with sampling stations co-located with sites in NOAA’s Mussel Watch program.”

The nuclear engineers at Berkeley have already begun testing seaweed on the Northern California Coast, they announced this weekend. Most foods passed their most recent food tests, but they reported a tiny amount of radioactive cesium in strawberries:

There are no isotopes from Japan detected in the new spinach, kale, arugula, and seaweed samples. The new strawberry samples from 4/20 show no I-131, but Cs-134 and Cs-137 are present. The highest levels of radioisotopes detected would require the consumption of more than 3 tons of strawberries in order to receive the same equivalent dose as a cross-country airplane flight.

via UC Berkeley Nuclear Engineering Air Monitoring Station.

Rain on Both Coasts

EPA also released a new batch of test results yesterday, reporting non-detects in samples from 16 of 18 U.S. cities, with these two exceptions:

7.2 picoCuries per liter of iodine-131 in rainwater collected April 20 in Boston.
5.2 pCi/L of cesium-134 and 5.5 pCi/L of cesium-137 in rainwater collected April 22 in Richmond, CA.
The EPA’s maximum contaminant level for both of these radionuclides—3 pCi/L for drinking water—anticipates continuous ingestion over a 70-year lifetime.

“It is important to note that all of the radiation levels detected by RadNet monitors and sampling have been very low, are well below any level of public health concern, and continue to decrease over time,” EPA said.
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Re: Nuclear Meltdown Watch

Postby Peachtree Pam » Fri May 06, 2011 2:32 pm

This should maybe also be in Eyeno's Mississippi River thread:
http://blacklistednews.com/?news_id=13789&print=1

Nuclear plant workers release unknown amount of radioactive tritium into Mississippi River
May 6, 2011

By Ethan A. Huff - Natural News

Workers at the Grand Gulf Nuclear Plant in Port Gibson, Miss., last Thursday released a large amount of radioactive tritium directly into the Mississippi River, according to the US Nuclear Regulatory Commission (NRC), and experts are currently trying to sort out the situation. An investigation is currently underway to determine why the tritium was even present in standing water found in an abandoned unit of the plant, as well as how much of this dangerous nuclear byproduct ended up getting dumped into the river. Many also want to know why workers released the toxic tritium before conducting proper tests.

The Mississippi Natchez Democrat reports that crews first discovered the radioactive water in the plant’s Unit 2 turbine building after heavy rains began hitting the area last week. Unit 2 was a partially-constructed, abandoned structure that should not have contained any radioactive materials, let alone tritium, which is commonly used to manufacture nuclear weapons and test atomic bombs (http://www.nirs.org/radiation/triti…)

According to reports, alarms began to go off as workers were releasing the radioactive storm water into the river, which engaged the stop flow on the release pump. Neither NRC nor plant officials know how much tritium was released into the river during this release.

“Although concentrations of tritium exceeded EPA drinking water limits, the release should not represent a hazard to public health because of its dilution in the river,” insisted Lara Uselding, public affairs officer at NRC Region IV, to reporters.

Such a statement, of course, is a health concern because precise levels of released tritium are unknown. Just because the radioactive substance has been diluted does not necessarily mean it is harmless, nor does it verify the substance’s source or whether or not it is still being unknowingly released. Without this crucial information, there is no telling where else tritium might be lurking around the plant and river.

A beta radioactive substance, tritium bombards cells and damages DNA when inhaled or swallowed, and can persist in the body for more than ten years upon exposure. Its perpetual effect on cells can lead to all sorts of serious diseases, including, but not limited to, gene mutations, birth defects, and cancer.
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Re: Nuclear Meltdown Watch

Postby smoking since 1879 » Fri May 06, 2011 9:06 pm

The radioactive decay product of tritium is a low energy beta that cannot penetrate the outer dead layer of human skin. Therefore, the main hazard associated with tritium is internal exposure from inhalation or ingestion. In addition, due to the relatively long half life and short biological half life, an intake of tritium must be in large amounts to pose a significant health risk. Although, in keeping with the philosophy of ALARA, internal exposure should be kept as low as practical.


http://www.physics.isu.edu/radinf/tritium.htm

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Re: Nuclear Meltdown Watch

Postby eyeno » Wed May 11, 2011 4:00 pm

The reactors at Fukushima are disintegrating. This situation is worse now than it has ever been and getting worse.


http://enenews.com/very-very-serious-re ... rway-video
------------------------------------

Happening Now: Smoke/steam pouring out of Reactor Units No. 2, 3, 4 (PHOTOS & VIDEOS)
May 11th, 2011 at 02:30 PM

http://enenews.com/happening-now-smokes ... tos-videos


-------------------------------------------------------

“Reactor 3 at the damaged Fukushima nuclear power station is leaking” — TEPCO says Cesium at 620,000 times above limit
May 11th, 2011 at 02:23 PM

http://enenews.com/reactor-3-damaged-fu ... bove-limit
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Re: Nuclear Meltdown Watch

Postby eyeno » Thu May 12, 2011 12:54 am

New interview with Dr. Moret



http://www.youtube.com/watch?v=htsWup50 ... ded#at=102

http://www.degaray.com/misc/138_Realtim ... arWar.html

Ms. Moret discussed how the U.S. Department of Energy (DOE) was actually running the “emergency response” including inordinate delays, organized “chaos”, and apparent Tepco “incompetence”.
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Re: Nuclear Meltdown Watch

Postby seemslikeadream » Thu May 12, 2011 8:24 am

Thanks so much for the vid eyeno
Mazars and Deutsche Bank could have ended this nightmare before it started.
They could still get him out of office.
But instead, they want mass death.
Don’t forget that.
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Re: Nuclear Meltdown Watch

Postby Nordic » Thu May 12, 2011 12:13 pm

None of this can possibly be happening. I mean, we got Bin Laden!!
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Re: Nuclear Meltdown Watch

Postby DoYouEverWonder » Thu May 12, 2011 4:53 pm

“Nuclear meltdown at Fukushima” — TEPCO worried fuel burned a hole through bottom of containment vessel

Nuclear meltdown at Fukushima plant

12 May 2011

Engineers from the Tokyo Electric Power company (Tepco) entered the No.1 reactor at the end of last week for the first time and saw the top five feet or so of the core's 13ft-long fuel rods had been exposed to the air and melted down.

Previously, Tepco believed that the core of the reactor was submerged in enough water to keep it stable and that only 55 per cent of the core had been damaged.

Now the company is worried that the molten pool of radioactive fuel may have burned a hole through the bottom of the containment vessel, causing water to leak.

"We will have to revise our plans," said Junichi Matsumoto, a spokesman for Tepco. "We cannot deny the possibility that a hole in the pressure vessel caused water to leak".

Tepco has not clarified what other barriers there are to stop radioactive fuel leaking if the steel containment vessel has been breached. Greenpeace said the situation could escalate rapidly if "the lava melts through the vessel".

However, an initial plan to flood the entire reactor core with water to keep its temperature from rising has now been abandoned because it might exacerbate the leak. Tepco said there was enough water at the bottom of the vessel to keep both the puddle of melted fuel and the remaining fuel rods cool.

Meanwhile, Tepco said on Wednesday that it had sealed a leak of radioactive water from the No.3 reactor after water was reportedly discovered to be flowing into the ocean. A similar leak had discharged radioactive water into the sea in April from the No.2 reactor.

Greenpeace said significant amounts of radioactive material had been released into the sea and that samples of seaweed taken from as far as 40 miles of the Fukushima plant had been found to contain radiation well above legal limits. Of the 22 samples tested, ten were contaminated with five times the legal limit of iodine 131 and 20 times of caesium 137.

Seaweed is a huge part of the Japanese diet and the average household almost 7lbs a year. Greenpeace's warning came as fishermen prepared to start the harvest of this season's seaweed on May 20.

Inland from the plant, there has been a huge cull of the livestock left inside the 18-mile mandatory exclusion zone with thousands of cows, horses and pigs being destroyed and some 260,000 chickens from the town of Minamisoma alone. The Environment ministry has announced, however, that it will attempt to rescue the thousands of pets that were left behind when residents were ordered to evacuate. At least 5,800 dogs were owned by the residents of the zone, although it is unclear how many remain alive, two months after the earthquake struck.

http://www.telegraph.co.uk/news/worldnews/asia/japan/8509502/Nuclear-meltdown-at-Fukushima-plant.html
Image
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Re: Nuclear Meltdown Watch

Postby eyeno » Thu May 12, 2011 9:18 pm

This one gives me a pit in my stomach.



http://www.youtube.com/watch?v=haMePBnk ... ded#at=358
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Re: Nuclear Meltdown Watch

Postby seemslikeadream » Thu May 12, 2011 9:42 pm

DoYouEverWonder wrote:“Nuclear meltdown at Fukushima” — TEPCO worried fuel burned a hole through bottom of containment vessel

Nuclear meltdown at Fukushima plant



I guess we can stop watching now
Mazars and Deutsche Bank could have ended this nightmare before it started.
They could still get him out of office.
But instead, they want mass death.
Don’t forget that.
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Re: Nuclear Meltdown Watch

Postby anothershamus » Fri May 13, 2011 1:00 am

seemslikeadream wrote:
DoYouEverWonder wrote:“Nuclear meltdown at Fukushima” — TEPCO worried fuel burned a hole through bottom of containment vessel

Nuclear meltdown at Fukushima plant



I guess we can stop watching now


Not until it hits an aquifer!
)'(
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Re: Nuclear Meltdown Watch

Postby eyeno » Fri May 13, 2011 2:25 am

anothershamus wrote:
seemslikeadream wrote:
DoYouEverWonder wrote:“Nuclear meltdown at Fukushima” — TEPCO worried fuel burned a hole through bottom of containment vessel

Nuclear meltdown at Fukushima plant



I guess we can stop watching now


Not until it hits an aquifer!



That is what I have been waiting on.
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