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Dr. Bin Mori is a professor emeritus at University of Tokyo, Faculty of Agriculture. Since the beginning of the Fukushima nuclear crisis on March 11, the professor has been writing his blog focusing on the effect of radiation in plants and remediation of agricultural land.I have featured his autoradiographs of dandelion and horsetail on my blog before.In his post on October 30, Professor Mori wrote about his discovery, probably the world first, he made in spiders (Nephila clavata) he caught in Iitate-mura, Fukushima Prefecture, where the villagers were forced to evacuate after being designated as "planned evacuation zone". The spiders, he found, had radioactive silver (Ag-110m) at 1,000 times the concentration in the environment.The following is my translation of Dr. Mori's October 30 blog post, with his express permission:

Since it was difficult to collect plants in the rain in Iitate-mura, I caught instead "nephila clavatas" in the bamboo groves and cedar forest.

I don't know whether the spiders eat dirt itself, but I thought they may have concentrated radioactive cesium in their bodies as they were at the top of the food chain in the forest, eating butterflies, horseflies, and drone beetles that they caught in their webs.

The impacts on the ocean of releases of radionuclides from the Fukushima Dai-ichi nuclear power plants remain unclear. However, information has been made public regarding the concentrations of radioactive isotopes of iodine and cesium in ocean water near the discharge point. These data allow us to draw some basic conclusions about the relative levels of radionuclides released which can be compared to prior ocean studies and be used to address dose consequences as discussed by Garnier-Laplace et al. in this journal.(1) The data show peak ocean discharges in early April, one month after the earthquake and a factor of 1000 decrease in the month following. Interestingly, the concentrations through the end of July remain higher than expected implying continued releases from the reactors or other contaminated sources, such as groundwater or coastal sediments. By July, levels of 137Cs are still more than 10 000 times higher than levels measured in 2010 in the coastal waters off Japan. Although some radionuclides are significantly elevated, dose calculations suggest minimal impact on marine biota or humans due to direct exposure in surrounding ocean waters, though considerations for biological uptake and consumption of seafood are discussed and further study is warranted.

there was no large explosive release of core reactor material, so most of the isotopes reported to have spread thus far via atmospheric fallout are primarily the radioactive gases plus fission products such as cesium, which are volatilized at the high temperatures in the reactor core, or during explosions and fires. However, some nonvolatile activation products and fuel rod materials may have been released when the corrosive brines and acidic waters used to cool the reactors interacted with the ruptured fuel rods, carrying radioactive materials into the ground and ocean. The full magnitude of the release has not been well documented, nor is there data on many of the possible isotopes released, but we do have significant information on the concentration of several isotopes of Cs and I in the ocean near the release point which have been publically available since shortly after the accident started.

We present a comparison of selected data made publicly available from a Japanese company and agencies and compare these to prior published radionuclide concentrations in the oceans. The primary sources included TEPCO (Tokyo Electric Power Company), which reported data in regular press releases(3) and are compiled here (Supporting Information Table S1). These TEPCO data were obtained by initially sampling 500 mL surface ocean water from shore and direct counting on high-purity germanium gamma detectors for 15 min at laboratories at the Fukushima Dai-ni NPPs. They reported initially results for 131I (t1/2 = 8.02 days), 134Cs (t1/2 = 2.065 years) and 137Cs (t1/2 = 30.07 years). Data from MEXT (Ministry of Education, Culture, Sports, Science and Technology—Japan) were also released on a public Web site(4) and are based on similar direct counting methods. In general MEXT data were obtained by sampling 2000 mL seawater and direct counting on high-purity germanium gamma detectors for 1 h in a 2 L Marinelli beaker at laboratories in the Japan Atomic Energy Agency. The detection limit of 137Cs measurements are about 20 000 Bq m–3 for TEPCO data and 10 000 Bq m–3 for MEXT data, respectively. These measurements were conducted based on a guideline described by MEXT.(5) Both sources are considered reliable given the common activity ratios and prior studies and expertise evident by several Japanese groups involved in making these measurements. The purpose of these early monitoring activities was out of concern for immediate health effects, and thus were often reported relative to statutory limits adopted by Japanese authorities, and thus not in concentration units (reported as scaling factors above “normal”). Here we convert values from both sources to radionuclide activity units common to prior ocean studies of fallout in the ocean (Bq m–3) for ease of comparison to previously published data.

American Energy Fields, Inc. (OTCBB:AEFI), formerly Sienna Resources, Inc. is a uranium exploration and development company based in Arizona. Their focus is uranium deposits in the United States. The Company’s three main projects (in which they have sole interest) are  the Coso and Blythe  projects in California, and Artillery Peak project in Arizona. All three properties have been previously explored and developed, and are currently in early exploration stages.  A 43-101 technical report for the Artillery Peak project is available for review on American Energy Field’s website. What we like about American Energy Fields, Inc: Over 9.2 million pounds U3O8 historic resources with 2.8 million pounds 43-101 verified More than $25 million in development work, by past operators, has been spent on AEFI’s current projects Committed to near term production of low cost U.S. Uranium

The Artillery Peak property consists of 1,777 acres of federal land and is located 112 miles northeast of Phoenix, Arizona. American Energy Fields’ historic records indicate 1.7 million pounds of uranium was previously identified through exploration on Artillery Peak. There has been significant exploration work completed on the property, including over 400 holes drilled by Jacquays Mining, Homestake Mining, Hecla Mining, Getty Oil, Public Service Company of Oklahoma, and Santa Fe Mining between the 1950s-1970s. A 1979 report by Central and South West Fuels, Inc. found that the northern portion of the property contains a historical resource of 1.7 million pounds U3O8 with an average grade of 0.113%. In 2007/2008 new exploration was conducted which included 34 additional drill holes to verify historic drilling and further delineate mineralization. In 1979, the Department of Energy conducted an evaluation of the Date Creek Basin and the Artillery Mountains where they estimated that the area could contain as much as 1,260,000,000 pounds of U3O8. The Company will begin a preliminary exploration program to verify the historic data reported by Central and South West Fuels Inc.

Coso – Inyo County – California The Coso project covers 169 federal mining claims and 800 state-owned acres and was previously developed by Western Nuclear, Pioneer Resources, Federal Resources, and Union Pacific Mining/Rocky Mountain Energy. An estimated U.S. $20,000,000.00 was spent on exploration and development of the project, including an engineered pit design, where exploration records indicate 5.5 million lbs. of uranium was identified with an average grade of 0.07 U3O8. American Energy Fields recently received its exploration permit for the 800 state-owned acres from the California Land Department and is currently developing an exploration plan to confirm the historic data with the goal of moving the project towards production. Blythe – Riverside County – California The Blythe project consists of 66 Federal mining claims in Riverside County, California covering 3 historic mines, the Safranek, the McCoy Wash, and the Little Ore Hill operated by Humbug Mining and Bokum Corporation. According to Bokum’s records during the years of 1963 to 1964, the Safranek Mine produced and shipped 1,400 tons of uranium ore averaging 0.80% U308 to the VCA mill in Salt Lake City, Utah for processing. These records also indicate the Safranek site currently contains 100 tons at 0.40% U3O8 and 4,000 tons at 0.30% U3O8 of stockpiled ore, while the McCoy Wash has 3,000 tons of stockpiled ore with a grade of 0.20% U3O8. Bokum Corporation drilled the property in the early 1970s and the results indicated approximately 153,000 lbs of U3O8 while outlining a further potential for an additional 2,000,000 lbs of U3O8. American Energy Fields aims to identify, expand, and develop the ore body with the goal of putting the past producing mines back into production. Management

Over the years, we’ve heard rumblings about the dwindling supply of precious Saudi oil. Now it’s becoming apparent that not only are they beginning to run dry, they’ve been grossly overstating what they already had (by 40% to be precise).

This is alarming if not just for the fact that global peak oil (whilst not being officially acknowledged) is already slowing production in the major oil exporting countries. Saddad al-Husseini, the former head of exploration at the Saudi oil monopoly Aramco, revealed that the Kingdom’s oil capacity “will have hit its highest point by 2012″.

However, realists familiar with the engineering reports are saying we hit peak oil two years ago and have simply been going off articifially inflated reserve estimates

As reported by Matt Wald of the New York Times, former NRC Commissioner Peter Bradford strikes again, with a most apt metaphor bringing a dose of reality to the so-called Third Way/Idaho National Lab conference on nuclear power's future. Unmentioned in the reporting, however, is the irony of U.S. Senators Voinovich (R-OH) and Carper (D-DE) hosting the event. It was on Voinovich's watch that the Davis-Besse atomic reactor near Toledo came within 3/16ths of an inch of a meltdown; Carper's political power base in Wilmington could suffer 100,000 "peak early fatalities," over 70,000 "peak early injuries," 40,000 "peak cancer deaths," and over $300 billion in property damage if any one of the three Salem/Hope Creek atomic reactors suffered a catastrophic radiation release, according to NRC's 1982 CRAC-2 study ("Calculation of Reactor Accident Consequences"). Also unreported was the irony that, as Obama administration officials -- Energy Secretary Steven Chu, White House climate and energy czar Carol Browner, NRC chairman Greg Jaczko -- rubbed shoulders with NEI President Marvin Fertel, GE-Hitachi Board Chair Jack Fuller, etc., the nuclear power industry's army of lobbyists worked Capitol Hill to attach a $7 billion nuclear loan guarantee onto the congressional lame duck session Continuing Resolution to fund government operations. NRC's homepage described the gathering as "28 nuclear leaders from government, industry and finance -- focused on long term policy for nuclear energy," but offered no explanation as to why its Chairman would attend an event seemingly largely devoted to nuclear power's promotion -- NRC is not supposed to promote nuclear power, but rather to regulate it in the interests of public health and safety and environmental protection

A ‘smoking gun’ article is one that reveals a direct connection between a fossil fuel or alternative energy system promoter and a strongly antinuclear attitude. One of my guiding theories about energy is that a great deal of the discussion about safety, cost, and waste disposal is really a cover for a normal business activity of competing for market share.

This weekend, I came across a site called Culture Change that provides some strong support for my theory about the real source of strength for the antinuclear industry. According to the information at the bottom of the home page, Culture Change was founded by Sustainable Energy Institute (formerly Fossil Fuels Policy Action), a nonprofit organization.Jan Lundberg, who has led the organization and its predecessor organizations since 1988, grew up in a wealthy family with a father who was a popular and respected petroleum industry analyst.

As Oil Guru, Dan [Lundberg, my father] earned a regular Nightly Business Report commentary spot on the Public Broadcasting System television network in the early and mid-1980s. I helped edit or proof-read just about every one of those commentaries, and we delighted in the occasional opportunity to attack gasohol and ethanol for causing “agricultural strip mining” (as we did in the Lundberg Letter).

Six months after the accident at Fukushima Daiichi, the news flow from the stricken nuclear power plant has slowed, but scientific studies of radioactive material in the ocean are just beginning to bear fruit.The word from the land is bad enough. As my colleague Hiroko Tabuchi reported on Saturday, Japanese officials have detected elevated radiation levels in rice near the crippled reactors. Worrying radiation levels had already been detected in beef, milk, spinach and tea leaves, leading to recalls and bans on shipments.

Off the coast, the early results indicate that very large amounts of radioactive materials were released, and may still be leaking, and that rather than being spread through the whole ocean, currents are keeping a lot of the material concentrated. Most of that contamination came from attempts to cool the reactors and spent fuel pools, which flushed material from the plant into the ocean, and from direct leaks from the damaged facilities.

Japanese government and utility industry scientists estimated this month that 3,500 terabecquerels of cesium 137 was released directly into the sea from March 11, the date of the earthquake and tsunami, to late May. Another 10,000 terabecquerels of cesium 137 made it into the ocean after escaping from the plant as steam.

Six months after the nuclear meltdowns in Fukushima Prefecture, the public's awareness of the threat posed by radiation is entering a new phase: the realization that the biggest danger now and in the future is from contaminated soil.

The iodine-131 ejected into the sky by the Fukushima No. 1 power station disaster was quickly detected in vegetables and tap water — even as far away as Tokyo, 220 km south of the plant. But contamination levels are now so low they are virtually undetectable, thanks to the short half-life of iodine-131 — eight days — and stepped up filtering by water companies.

But cesium is proving to be a tougher foe. The element's various isotopes have half-lives ranging from two to 30 years, generating concern about the food chain in Fukushima Prefecture, a predominantly agricultural region, as the elements wash fallout into the ground. The root of the problem is, well — roots. Cesium-134 and cesium-137 are viewed as potential health threats because vegetables can absorb the isotopes from the soil they're planted in.

Some radioactive contaminants at the Hanford Nuclear Reservation will threaten the Columbia River for thousands of years, a new analysis projects, despite the multibillion-dollar cleanup efforts by the federal government.

The U.S. Department of Energy projections come from a new analysis of how best to clean up leaking storage tanks and manage waste at Hanford, a former nuclear weapons production site on 586 square miles next to the Columbia in southeastern Washington.

Oregon officials say the results, including contamination projections for the next 10,000 years, indicate the federal government needs to clean up more of the waste that has already leaked and spilled at Hanford instead of capping and leaving it, a less-expensive alternative.

(Reuters) - Japanese utilities will largely avoid power shortages this winter despite prolonged reactor shutdowns amid public concerns over nuclear safety, but hurdles remain for next summer, the government said on Tuesday.

It also unveiled ways to bridge the gap next summer, when peak-hour demand is expected to exceed supply by 16,560 megawatts, compared with the biggest gap this winter of 2,530 MW in one area, if no reactors restart by then.

Utilities plan to secure additional fossil-fuel capacity of 4,090 MW by next summer, but other plans depend on how far policy initiatives, such as fiscal spending, can encourage energy conservation and the use of solar and wind power, leaving the risk of rolling blackouts.

A fortnight after writing $2.84bn (£1.84bn) off the value of its Fayetteville shale gas business in Arkansas, BHP is poised to reveal on Wednesday that the charge helped push down its profits by a massive 40 per cent – to $14.2bn – in the year to June 30.

The FTSE 100 mining giant was forced into the writedown after a decade-long stampede into the brave new world of US shale gas produced so much of the stuff that its price tumbled to 10-year lows, taking the value of its producers with them.

"The problem is exacerbated because the minerals leasing system in the US obliges lessees to drill fairly quickly or relinquish their drilling rights," he added.

: Dr. Helen Caldicott

All areas of Japan should be tested to assess how radioactive the soil and water are because the winds can blow the radioactive pollution hundreds of miles from the point source at Fukushima. Under no circumstances should radioactive rubbish and debris be incinerated as this simply spreads the isotopes far and wide to re-concentrate in food and fish. All batches of food must be adequately tested for specific radioactive elements using spectrometers. No radioactive food must be sold or consumed, nor must radioactive food be diluted for sale with non-radioactive food as radioactive elements re-concentrate in various bodily organs. All water used for human consumption should be tested weekly. All fish caught off the east coast must be tested for years to come. All people, particularly children, pregnant women and women of childbearing age still living in high radiation zones should be immediately evacuated to non-radioactive areas of Japan. All people who have been exposed to radiation from Fukushima – particularly babies, children, immunosuppressed, old people and others — must be medically thoroughly and routinely examined for malignancy, bone marrow suppression, diabetes, thyroid abnormalities, heart disease, premature aging, and cataracts for the rest of their lives and appropriate treatment instituted. Leukemia will start to manifest within the next couple of years, peak at five years and solid cancers will start appearing 10 to 15 years post-accident and will continue to increase in frequency in this generation over the next 70 to 90 years. All physicians and medical care providers in Japan must read and examine Chernobyl–Consequences of the Catastrophe for People and the Environment by the New York Academy of Sciences to understand the true medical gravity of the situation they face. I also suggest with humility that doctors in particular but also politicians and the general public refer to my web page, nuclearfreeplanet.org for more information, that they listen to the interviews related to Fukushima and Chernobyl on my radio program at ifyoulovethisplanet.org and they read my book NUCLEAR POWER IS NOT THE ANSWER. The international medical community and in particular the WHO must be mobilized immediately to assist the Japanese medical profession and politicians to implement this massive task outlined above. The Japanese government must be willing to accept international advice and help. As a matter of extreme urgency Japan must request and receive international advice and help from the IAEA and the NRC in the U.S., and nuclear specialists from Canada, Europe, etc., to prevent the collapse of Fukushima Dai-ichi Unit 4 and the spent fuel pool if there was an earthquake greater than 7 on the Richter scale.As the fuel pool crashed to earth it would heat and burn causing a massive radioactive release 10 times larger than the release from Chernobyl. There is no time to spare and at the moment the world community sits passively by waiting for catastrophe to happen. The international and Japanese media must immediately start reporting the facts from Japan as outlined above. Not to do so is courting global disaster.

11/22/2011, it turned out that Tepco estimated that they can cover all the electric consumption even without nuclear plants. By using pumped-storage power generation and steam-power generation ,next summer they can supply more than 57 million kilowatts, which is the maximum supply capacity of this summer. This year, we did not run out of power. 57 million kilowatts is even OVER supply. The annual peak of the electric consumption is late August in Japan. By proving that they can cover the potential demand of next summer, it has become clear that they don’t need nuclear power through a year. There are 54 nuclear plants in Japan. Tepco owns 17 of them.

Why did such massive amounts of radioactive substances escape from the crippled Fukushima No. 1 nuclear power plant? Why did explosions tear through its reactor buildings? Tokyo Electric Power Co.'s interim report on the accident at the nuclear plant shed some light on some causes of the nation's worst-ever nuclear crisis, but these and other crucial questions remain unanswered. The release of radioactive substances is believed to have peaked on the morning of March 15. As radiation spewed from the plant's reactors, residents in an extensive area--even as far as Iitatemura, Fukushima Prefecture, about 30 kilometers from the plant--were forced to evacuate.

The report said the air pressure in the containment vessel of the plant's No. 2 reactor dropped drastically that morning. However, TEPCO says the causal relationship between the pressure drop and the radioactive release is "unclear at this moment." It had been assumed that a blast in the pressure control chamber below the No. 2 reactor's containment vessel caused the increase in radiation leaked into the environment. Analysis of data from a seismometer and other equipment at the complex later showed this hypothesis was incorrect.

The report's verification of TEPCO's initial response to the nuclear accident also lacked details. After a hydrogen blast wrecked the No. 1 reactor building shortly after 3:30 p.m. on March 12--a development nobody had anticipated--TEPCO scrambled to prevent similar blasts from occurring at the other reactors.

Radioactive substances from the crippled Fukushima No. 1 nuclear power plant have now been confirmed in all prefectures, including Uruma, Okinawa Prefecture, about 1,700 kilometers from the plant, according to the science ministry. The ministry said it concluded the radioactive substances came from the stricken nuclear plant because, in all cases, they contained cesium-134, which has short half-life of two years. Before the March 11 Great East Japan Earthquake, radioactive substance were barely detectable in most areas.

the Ministry of Education, Culture, Sports, Science and Technology's survey results released on Nov. 25 showed that fallout from the Fukushima plant has spread across Japan. The survey covered the cumulative densities of radioactive substances in dust that fell into receptacles during the four months from March through June. Figures were not available for Miyagi and Fukushima prefectures, where the measurement equipment was rendered inoperable by the March 11 disaster. One measurement station was used for each of the other 45 prefectures. The highest combined cumulative density of radioactive cesium-134 and cesium-137 was found in Hitachinaka, Ibaraki Prefecture, at 40,801 becquerels per square meter. That was followed by 22,570 becquerels per square meter in Yamagata, the capital of Yamagata Prefecture, and 17,354 becquerels per square meter in Tokyo's Shinjuku Ward.

The current air radiation level in Ibaraki Prefecture is about 0.14 microsievert per hour, equivalent to an annual dose of about 1 millisievert, the safety limit for exposure under normal time international standards. Large amounts of radioactive dust fell in Tokyo, but a separate survey has detected relatively low accumulations of cesium in the soil. "Tokyo has smaller soil surfaces than other prefectures, but road and concrete surfaces are less prone to fixate cesium deposits, which were probably diffused by the wind and rain," a ministry official explained.

During the 1970s and 1980s, at the peak of the nuclear reactor construction, organized groups of protestors mounted dozens of anti-nuke campaigns. They were called Chicken Littles, the establishment media generally ignored their concerns, and the nuclear industry trotted out numerous scientists and engineers from their payrolls to declare nuclear energy to be safe, clean, and inexpensive energy that could reduce America’s dependence upon foreign oil. Workers at nuclear plants are highly trained, probably far more than workers in any other industry; operating systems are closely regulated and monitored. However, problems caused by human negligence, manufacturing defects, and natural disasters have plagued the nuclear power industry for its six decades. It isn’t alerts like what happened at San Onofre that are the problem; it’s the level 3 (site area emergencies) and level 4 (general site emergencies) disasters. There have been 99 major disasters, 56 of them in the U.S., since 1952, according to a study conducted by Benjamin K. Sovacool Director of the Energy Justice Program at Institute for Energy and Environment  One-third of all Americans live within 50 miles of a nuclear plant.

At Windscale in northwest England, fire destroyed the core, releasing significant amounts of Iodine-131. At Rocky Flats near Denver, radioactive plutonium and tritium leaked into the environment several times over a two decade period. At Church Rock, New Mexico, more than 90 million gallons of radioactive waste poured into the Rio Puerco, directly affecting the Navajo nation. In the grounds of central and northeastern Pennsylvania, in addition to the release of radioactive Cesium-137 and Iodine-121, an excessive level of Strontium-90 was released during the Three Mile Island (TMI) meltdown in 1979, the same year as the Church Rock disaster. To keep waste tanks from overflowing with radioactive waste, the plant’s operator dumped several thousand gallons of radioactive waste into the Susquehanna River. An independent study by Dr. Steven Wing of the University of North Carolina revealed the incidence of lung cancer and leukemia downwind of the TMI meltdown within six years of the meltdown was two to ten times that of the rest of the region.

Although nuclear plant security is designed to protect against significant and extended forms of terrorism, the NRC believes as many as one-fourth of the 104 U.S. nuclear plants may need upgrades to withstand earthquakes and other natural disasters, according to an Associated Press investigation. About 20 percent of the world’s 442 nuclear plants are built in earthquake zones, according to data compiled by the International Atomic Energy Agency. The NRC has determined that the leading U.S. plants in the Eastern Coast in danger of being compromised by an earthquake are in the extended metropolitan areas of Boston, New York City, Philadelphia, Pittsburgh, and Chattanooga. Tenn. The highest risk, however, may be California’s San Onofre and Diablo Canyon plants, both built near major fault lines. Diablo Canyon, near San Luis Obispo, was even built by workers who misinterpreted the blueprints.