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Some of the spent nuclear fuel rods stored in the No. 4 reactor building of the crisis-hit Fukushima Daiichi power plant were confirmed to be damaged, but most of them are believed to be in sound condition, plant operator Tokyo Electric Power Co. said Wednesday. The firm known as TEPCO said its analysis of a 400-milliliter water sample taken Tuesday from the No. 4 unit's spent nuclear fuel pool revealed the damage to some fuel rods in such a pool for the first time, as it detected higher-than-usual levels of radioactive iodine-131, cesium-134 and cesium-137. The No. 4 reactor, halted for a regular inspection before last month's earthquake and tsunami disaster, had all of its 1,331 spent fuel rods and 204 unused fuel rods stored in the pool for the maintenance work and the fuel was feared to have sustained damage from overheating. The cooling period for 548 of the 1,331 rods was shorter than that for others and the volume of decay heat emitted from the fuel in the No. 4 unit pool is larger compared with pools at other reactor buildings. According to TEPCO, radioactive iodine-131 amounting to 220 becquerels per cubic centimeter, cesium-134 of 88 becquerels and cesium-137 of 93 becquerels were detected in the pool water. Those substances are generated by nuclear fission. The government's Nuclear and Industrial Safety Agency said the confirmed radioactive materials were up to 100,000 times higher than normal but that the higher readings may have also been caused by the pouring of rainwater containing much radioactivity or particles of radiation-emitting rubble in the pool.

The risks associated with iodine-131 contamination in Europe are no longer "negligible," according to CRIIRAD, a French research body on radioactivity. The NGO is advising pregnant women and infants against "risky behaviour," such as consuming fresh milk or vegetables with large leaves. BACKGROUND After the radioactive cloud emanating from Japan's stricken Fukushima nuclear power plant reached Europe in late March, CRIIRAD, a French research body on radioactivity, an NGO, said it had detected radioactive iodine-131 in rainwater in south-eastern France. In parallel testing, the French Institute for Radiological Protection and Nuclear Safety (IRSN), the national public institution monitoring nuclear and radiological risks, found iodine 131 in milk.  In normal times, no trace of iodine-131 should be detectable in rainwater or milk. The Euratom Directive of 13 May 1996 establishes the general principles and safety standards on radiation protection in Europe.

Radiation from Japan rained on Berkeley during recent storms at levels that exceeded drinking water standards by 181 times and has been detected in multiple milk samples, but the U.S. government has still not published any official data on nuclear fallout here from the Fukushima disaster. Dangers from radiation that is wafting over the United States from the Fukushima power plant disaster and falling with rain have been downplayed by government officials and others, who say its impacts are so fleeting and minor as to be negligible.

This is the Kyodo News Wire for the Fukushima disaster... Many stories posted daily.  

Minute amounts of radioactive strontium have been detected in soil and plants in Fukushima Prefecture beyond the 30-kilometer zone around the crippled Fukushima Daiichi Nuclear Power Station, the science ministry said Tuesday. It is the first time that radioactive strontium has been detected since the Fukushima plant began leaking radioactive substances after it was severely damaged by the March 11 earthquake and tsunami. There is no safety limit set by the government for exposure to strontium, but the amount found so far is extremely low and does not pose a threat to human health, the Education, Culture, Sports, Science and Technology said. Experts, however, expressed concern that the accumulation of strontium could have adverse health effects. When strontium enters the human body, it tends to accumulate in bones and is believed to cause bone cancer and leukemia. Samples of soil and plants were taken March 16 to 19 from a number of locations in Fukushima Prefecture.

The operator of the crippled Fukushima nuclear plant said Tuesday that it is concerned that radiation leakage at the plant could eventually exceed that of the 1986 Chernobyl catastrophe. ''The radiation leak has not stopped completely and our concern is that the amount of leakage could eventually reach that of Chernobyl or exceed it,'' an official from the Tokyo Electric Power Co. said. Meanwhile, the Nuclear and Industrial Safety Agency said that most of the radioactive material released in the air from the crippled Fukushima Daiichi nuclear plant came from the No. 2 reactor damaged by an explosion on March 15. At 6:10 a.m. on March 15, part of the reactor's containment vessel was damaged following an apparent hydrogen explosion. Massive amounts of radioactive substances are believed to have been released from the suppression pool of the reactor, the agency said.

Title of article now represents the minimum percentage that the radiation found in Hawaii is over EPA standards. New EPA milk samples in Hawaii show radiation in milk at 800% above limits for Cs-134, 633% above limits for Cs-137 and 600% above EPA maximum for I-131 for a total of 2033%, or 20.33 times, above the federal drinking water limits. New readings have also been posted for Phoenix AZ with milk being above the federal limit and Los Angeles with milk being slightly below the limit for Iodine. Montpelier VT milk has tested positive for radioactive CS-137, above about 2/3rds the EPA maximum and Spokane WA milk testing less than half the limit for i-131.

Tokyo Electric Power could face 2 trillion yen ($23.6 bln) in special losses in the current business year to March 2012 to compensate communities near its crippled nuclear plant, JP Morgan said in a research report obtained by Reuters. Shares of Tokyo Electric, commonly known as Tepco, have lost about three-fourths of their value since the March 11 earthquake and tsunami tore through the Fukushima Daiichi nuclear complex, causing it to leak radiation. The government has evacuated people living in a 20 km (12 miles) radius of the plant and announced on Monday that it would encourage people to leave certain areas beyond that exclusion zone due to accumulated radiation. As Tepco has struggled to contain the crisis, analysts have struggled to come up with viable estimates for the financial burden facing the utility given the unprecedented scale of the problem and uncertainty over the likely degree of government support. JP Morgan said Tepco could face 554 billion yen of extraordinary losses in the financial year ended last month for scrapping the crippled plant and bringing thermal power plants back on line. It estimated that Tepco would have to shoulder 600 billion yen in extra costs due to increased use of thermal power in the financial year to March 2012, and some 2 trillion yen in damages to compensate local communities. JP Morgan said how a law governing such cases is interpreted would be key in determining the company's liabilities. "A key issue concerning damage compensation is whether the Fukushima nuclear power plant accident is considered an unavoidable natural disaster," JP Morgan analyst Tomohiro Jikihara wrote in the report. "In the case of losses, Tepco also bears liability. We assume compensation of 2 trillion yen."

Chronology of events surrounding crippled Fukushima nuclear plant A school building, which was submerged as a result of a tsunami on March 11, stands in an area of Yamamoto, Miyagi Prefecture. (Mainichi) TOKYO (Kyodo) -- The following is a chronology of events regarding the nuclear crisis at the Fukushima Daiichi nuclear power station in Fukushima Prefecture, triggered by the March 11 earthquake and tsunami that struck northeastern and eastern Japan. March 11 -- Magnitude 9.0 earthquake forces power plant's Nos. 1-3 reactors to suspend operations automatically (Nos. 4-6 reactors were shut down, undergoing regular checks). Prime Minister Kan declares nuclear emergency, directing local residents in 3-kilometer radius of plant to evacuate. March 12 -- Kan inspects stricken plant. Radioactive steam is vented from No. 1 reactor's containment vessel. Hydrogen explosion rips No. 1 reactor building. Government expands evacuation zone to 20 km radius of plant. March 14 -- Hydrogen explosion rocks No. 3 reactor building. No. 2 reactor's fuel rods are exposed as water recedes inside reactor vessel. March 15 -- Kan scolds Tokyo Electric Power (TEPCO) officials at company head office. Explosion is heard near suppression chamber of No. 2 reactor's containment vessel. Explosion is also heard at No. 4 reactor. Government directs residents in 20-30-km ring of plant to stay indoors. A tsunami crests the embankment of the Heikawa River in Miyako, Iwate Prefecture, before sweeping into the city on March 11. (Mainichi) March 16 -- Damage is feared to have been done to No. 3 reactor's containment vessel, forcing workers to retreat. March 17 -- Ground Self-Defense Force helicopters drop water on No. 3 reactor building. Fire engines spray water from ground. March 18 -- Nuclear safety agency gives crisis involving Nos. 1-3 reactors preliminary value of Level 5 on nuclear accident scale of 7. March 19 -- Tokyo firefighters spray water at No. 3 reactor. Government announces detecti

Toshiba Corp. has proposed decommissioning four troubled nuclear reactors at the Fukushima No. 1 power plant in about 10 years, much shorter than the 14 years needed to dismantle the Three Mile Island nuclear plant in Pennsylvania, industry sources said Friday. Toshiba filed the proposal with Tokyo Electric Power Co. and the Ministry of Economy, Trade and Industry, after compiling it with U.S. nuclear energy firms, including its Westinghouse Electric Co. subsidiary, according to the sources. Toshiba believes it can rely on the U.S. firms' experience of the 1979 Three Mile Island accident to decommission Tepco's Fukushima reactors. According to the proposal, it will take about 10 years to remove the fuel rods in the containers and the spent nuclear fuel rods in the storage pools from the four reactors, as well as demolish various on-site facilities and improve the soil condition.

ower plant are refusing to adopt the government-imposed provisional limit on radiation exposure for those workers at the plant, saying it would not be accepted by those at the site, Kyodo News learned Saturday. The limit was lifted from 100 millisieverts to 250 millisieverts in an announcement made March 15 by the Ministry of Health, Labor and Welfare at the request of the Ministry of Economy, Trade and Industry, which has the Nuclear and Industrial Safety Agency under its wing, and other bodies. The increase was requested to enable workers to engage in longer hours of assignments and to secure more workers who meet the restriction.

Radioactive water spilled from pools holding spent nuclear fuel rods at the Onagawa power plant in Miyagi Prefecture following the strong earthquake late Thursday, the nuclear safety agency said Friday. At the crisis-hit Fukushima Daiichi nuclear power plant or at another plant in Fukushima Prefecture, meanwhile, no new problems have surfaced since the magnitude 7.1 aftershock of the deadly March 11 quake. While the spent fuel pools at the Onagawa plant and the Higashidori nuclear power station in Aomori Prefecture, both operated by Tohoku Electric Power Co., lost their cooling functions for 20 to 80 minutes after the quake, the temperature hardly rose, the Nuclear and Industrial Safety Agency said.

The Nuclear Safety Commission of Japan released a preliminary calculation Monday saying that the crippled Fukushima Daiichi nuclear plant had been releasing up to 10,000 terabecquerels of radioactive materials per hour at some point after a massive quake and tsunami hit northeastern Japan on March 11. The disclosure prompted the government to consider raising the accident's severity level to 7, the worst on an international scale, from the current 5, government sources said. The level 7 on the International Nuclear Event Scale has only been applied to the 1986 Chernobyl catastrophe. The current provisional evaluation of 5 is at the same level as the Three Mile Island accident in the United States in 1979. According to an evaluation by the INES, level 7 accidents correspond with a release into the external environment radioactive materials equal to more than tens of thousands terabecquerels of radioactive iodine 131. One terabecquerel equals 1 trillion becquerels. Haruki Madarame, chairman of the commission, which is a government panel, said it has estimated that the release of 10,000 terabecquerels of radioactive materials per hour continued for several hours.

he government on Monday expanded evacuation areas around the crippled Fukushima Daiichi nuclear power plant beyond a 20-kilometer radius from the plant, as cumulative radiation levels have become high in wider areas. People living in the newly designated municipalities -- Katsurao, Namie, Iitate, part of Kawamata and part of Minamisoma -- will be asked to evacuate within one month, Chief Cabinet Secretary Yukio Edano told a news conference. At present, those who live in the 20-km range must evacuate while those in the 20-30 km radius are asked to stay indoors.

Soon after the Fukushima accident last month, I stated publicly that a nuclear event of this size and catastrophic potential could present a medical problem of very large dimensions. Events have proven this observation to be true despite the nuclear industry's campaign about the "minimal" health effects of so-called low-level radiation. That billions of its dollars are at stake if the Fukushima event causes the "nuclear renaissance" to slow down appears to be evident from the industry's attacks on its critics, even in the face of an unresolved and escalating disaster at the reactor complex at Fukushima. Proponents of nuclear power - including George Monbiot, who has had a mysterious road-to-Damascus conversion to its supposedly benign effects - accuse me and others who call attention to the potential serious medical consequences of the accident of "cherry-picking" data and overstating the health effects of radiation from the radioactive fuel in the destroyed reactors and their cooling pools. Yet by reassuring the public that things aren't too bad, Monbiot and others at best misinform, and at worst misrepresent or distort, the scientific evidence of the harmful effects of radiation exposure - and they play a predictable shoot-the-messenger game in the process.

TOKYO --The problems that followed the recent earthquake and tsunami in Japan, including the accident at the Fukushima I nuclear power station (NPS) and the shortage of power supply due to extensive damage suffered by the country's electric power systems, are expected to have a significant impact on Japan's future energy policy. While relevant discussions have not yet begun under the circumstance that the primary focus is placed on the resolution of the nuclear accident at present, some national government bureaucrats have started voicing their views on the country's future energy policy.

Fukushima Gov. Yuhei Sato has expressed anger at the central government and Tokyo Electric Power Co., saying both "betrayed" the people of Fukushima Prefecture with repeated assurances about the safety of nuclear power plants. "We feel we were betrayed [by the central government and TEPCO]," Sato said during an interview with The Yomiuri Shimbun on Thursday, nearly a month after the March 11 earthquake and tsunami and the outbreak of a series of accidents at the Fukushima No.1 nuclear power plant. "The central government and TEPCO repeatedly told us, 'Nuclear power plants are safe because they've got multiple protection systems,' and, 'Earthquake-proof measures have been taken,'" Sato said.

Plan to Radically Hike Post-Accident Radiation in Food & Water Sparks Hot Dissent Washington, DC - A plan awaiting approval by the U.S. Environmental Protection Agency that would dramatically increase permissible radioactive releases in drinking water, food and soil after "radiological incidents" is drawing vigorous objections from agency experts, according to agency documents released today by Public Employees for Environmental Responsibility (PEER). At issue is the acceptable level of public health risk following a radiation release, whether an accidental spill or a "dirty bomb" attack. The radiation arm of EPA, called the Office of Radiation and Indoor Air (ORIA), has prepared an update of the 1992 "Protective Action Guides" (PAG) governing radiation protection decisions for both short-term and long-term cleanup standards. Other divisions within EPA contend the ORIA plan geometrically raises allowable exposure to the public. For example, as Charles Openchowski of EPA's Office of General Counsel wrote in a January 23, 2009 e-mail to ORIA: "[T]his guidance would allow cleanup levels that exceed MCLs [Maximum Contamination Limits under the Safe Drinking Water Act] by a factor of 100, 1000, and in two instances 7 million and there is nothing to prevent those levels from being the final cleanup achieved (i.e., it's not confined to immediate response of emergency phase)."

The scale of the Chernobyl disaster is not exaggerated and even understated," a victims representative and leading nuclear expert told Xinhua in an exclusive interview Wednesday. Alexander Zenchenko, the chairman of the Focal Alliance of Chernobyl Disaster Victims, also said the nuclear power plant catastrophe in Ukraine in 1986 and the current crisis at the Fukushima Daiichi plant in Japan were very different. Zenchenko, who is a famous Ukrainian nuclear chemist and physicist, is in a good position to know. He was rec

70 percent of fuel rods in reactor core at Fukushima nuke plant damaged The pool for spent fuel at the No. 4 reactor of TEPCO's Fukushima No. 1 nuclear power plant is pictured in this Feb. 1, 2005, file photo. (Mainichi ) About 70 percent of the 400 fuel rods in the No. 1 reactor at the crippled Fukushima No. 1 Nuclear Power Plant are damaged, Tokyo Electric Power Co. (TEPCO) has revealed. In addition, some 30 percent of the 548 fuel rods in the No. 2 reactor core and 25 percent of those in the No. 3 reactor core are also thought to be damaged, the power company stated on April 6. The figures are based on analysis of radiation data collected from the side of the reactor pressure vessel between the March 11 earthquake and tsunami and March 15. Just after the earthquake hit, the No. 1-3 reactors were successfully shut down when control rods were inserted into the cores. However, the plant operators soon lost the ability to adequately cool the cores, and TEPCO believes it possible some of the nuclear fuel pellets inside the fuel rods may have melted and leaked from their metal sheathes. At the time of the quake the plant's No. 4 reactor was undergoing a routine inspection and had no fuel rods in its core, while reactors No. 5 and 6 were not operating.