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Kerncentrale Japan explodeert.

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  1. forum rang 7 mvliex 1 19 maart 2011 13:33

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    quote:

    Koek~invest~ schreef op 19 maart 2011 12:29:

    zet er ook even bij dat je het van die sprookjes site af hebt gehaald.
    xandernieuws.punt.nl/?gr=797202
    Doet 'ie niet. Robin82 is deze weken de meest ongefundeerde doom-poster die ten koste van alles hoopt dat de beurs gaat dalen. Helaas bestaan deze 'mensen'.
  2. Robin82 19 maart 2011 13:36

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    Dat mijn realisme wordt afgedaan als "dr Doom" kan ik begrijpen van aandelen-beleggers, maar ook jullie (podsitieve) mening respecteer ik.

    Over een paar weken/maanden weten we waar we staan met de AEX, zoals al eerder aangegeven denk ik dat de AEX midden/eind mei op aex 300-325 staat.

    Maar ben voor de iets langere termijn wel gematigd positief, een AEX van 410-425 eind 2011 zie ik wel.
    Dus de buy&hold belegger moet nu gewoon even rustig blijven zitten tijdens de jaarlijkse "scheerbeurt".
  4. forum rang 7 mvliex 1 19 maart 2011 13:42

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    quote:

    Robin82 schreef op 19 maart 2011 13:36:

    Dat mijn realisme wordt afgedaan als "dr Doom" kan ik begrijpen van aandelen-beleggers, maar ook jullie (podsitieve) mening respecteer ik.

    Over een paar weken/maanden weten we waar we staan met de AEX, zoals al eerder aangegeven denk ik dat de AEX midden/eind mei op aex 300-325 staat.

    Maar ben voor de iets langere termijn wel gematigd positief, een AEX van 410-425 eind 2011 zie ik wel.
    Dus de buy&hold belegger moet nu gewoon even rustig blijven zitten tijdens de jaarlijkse "scheerbeurt".
    Jouw realisme heeft niets met realisme te maken. Jij probeert misbruik te maken van bijv. een ramp in Japan en onrust in diverse landen om anderen bang te maken en te laten denken dat de beurs gaat dalen in de hoop dat het dan ook gebeurt. Dat is lager dan laag en voor mij ben jij dus gewoon een ordinaire ramptoerist!
    Andere op bijv. het meltdown-draadje gebruiken tenminste nog verwijzingen e.d. om te onderbouwen. Eenzijdige berichtgeving, dat wel, maar niet zo fout als jij doet.

  6. [verwijderd] 19 maart 2011 14:06

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    quote:

    mvliex 1 schreef:

    [...]

    Jouw realisme heeft niets met realisme te maken. Jij probeert misbruik te maken van bijv. een ramp in Japan en onrust in diverse landen om anderen bang te maken en te laten denken dat de beurs gaat dalen in de hoop dat het dan ook gebeurt. Dat is lager dan laag en voor mij ben jij dus gewoon een ordinaire ramptoerist!
    Andere op bijv. het meltdown-draadje gebruiken tenminste nog verwijzingen e.d. om te onderbouwen. Eenzijdige berichtgeving, dat wel, maar niet zo fout als jij doet.

    Ik merk dat ik me daar ook bijzonder aan erger.

    Niets persoonlijks, maar gewoon een filosofisch vraagje: Als iemand het tegenovergestelde doet, wordt er nooit geïrriteerd gereageerd. "Aha, jij zit zeker long, want je bent de beurs vreselijk omhoog aan het praten." Waarom wordt dat laatste wel geaccepteerd?
  8. [verwijderd] 19 maart 2011 15:31

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    The Japanese government has reported that trace amounts of radioactive iodine have been detected in tap water in Tokyo and five other areas, amid concerns about leaks from the crippled Fukushima nuclear power station.

    The ministry says the amounts did not exceed government safety limits, but the announcement has added to safety fears among the Japanese people. Earlier in the day, Japan banned the sale of food products from near Fukushima after finding elevated radiation levels in spinach and milk from the area's farms.

    The International Atomic Energy Agency said: "Though radioactive iodine has a short half-life of about eight days and decays naturally within a matter of weeks, there is a short-term risk to human health if radioactive iodine in food is absorbed into the human body."

    Tainted milk was found 30km (20 miles) from the plant and contaminated spinach was collected up to 100km (65 miles) to the south.

    Chief cabinet secretary Yukio Edano told reporters in Tokyo that the radiation levels exceeded the limits allowed by the government, but the products "pose no immediate health risk" and testing was being done on other foods..

    "It's not like if you ate it right away you would be harmed," Edano said. "It would not be good to continue to eat it for some time."

    Edano said the amount of radiation detected in the milk was the equivalent to one CT scan – the series of X-rays used for medical tests – if consumed continually for a year.

    Low levels of radiation have been detected well beyond Tokyo, which is 220km south of the plant, but hazardous levels have been limited to the plant itself.

    The food scare is the latest consequence of the cascade of disasters unleashed by the earthquake on 11 March.

    Emergency teams scrambled on Saturday to restore power to the Fukushima plant so it could cool dangerously overheated fuel.

    Firefighters pumped tons of water directly from the ocean into the cooling pool for used fuel rods at the plant's unit 3. The rods are at risk of burning up and sending a broad release of radioactive material into the environment.

    Just outside the bustling disaster response centre in the city of Fukushima, 60km north-west of the plant, government nuclear specialist Kazuya Konno was able to take only a three-minute break for his first meeting with his wife Junko and their children since the earthquake.

    "It's very nervewracking. We really don't know what is going to become of our city," Junko told Associated Press. "Like most other people, we have been staying indoors unless we have to go out."

    She brought her husband a small backpack with a change of clothes and snacks. The girls, aged four and six and wearing pink surgical masks decorated with Mickey Mouse, gave their father hugs.

    In his latest ministerial update from Tokyo, Edano said: "The situation at the nuclear complex still remains unpredictable. But at least we are preventing things from deteriorating."

    A fire truck with a high-pressure cannon parked outside the plant's unit 3 began shooting a continuous arc of water nonstop into the pool for seven hours. Because of high radiation levels, firefighters will only go to the truck every three hours when it needs to be refueled. They expect to pump about 1,400 tons of water, nearly the capacity of the pool.

    Hidehiko Nishiyama of Japan's Nuclear and Industrial Safety Agency said backup power systems at the plant had been improperly protected, leaving them vulnerable to the tsunami that ravaged the north-eastern coast of Japale.

    The failure enabled uranium fuel to overheat and was a "main cause" of the crisis, Nishiyama said. "I cannot say whether it was a human error, but we should examine the case closely."

    A spokesman for Tokyo Electric, which owns and runs the complex, said it was protected against tsunamis of up to five metres (16ft) but a six-metre wave of water struck Fukushima on 11 March.

    Plant operators said they would reconnect four of the plant's six reactor units to a power grid on Saturday. Workers have to methodically work through badly damaged and deeply complex electrical systems to make the final linkups without setting off a spark and potentially an explosion.

    "Most of the motors and switchboards were submerged by the tsunami and they cannot be used," Nishiyama said.

    Even once the power is reconnected, it is not clear if the cooling systems will still work.

    The storage pools need a constant source of cooling water. Even when removed from reactors, uranium rods are still extremely hot and must be cooled for months, possibly longer, to prevent them from heating up again and emitting radioactivity.

    Meanwhile, some Britons in the country have begun their journey back to the UK to escape from radiation fears, power shortages, business closures and a lack of food in shops.

    Buses and planes ferried people to safety on Friday, with 24 British nationals leaving tsunami-flattened Sendai on two coaches heading for Tokyo.

    The Foreign Office block-booked seats for Britons wanting to fly home on commercial flights, the first of which was a Cathay Pacific flight to Hong Kong, and said two other flights to Hong Kong would be made available on Saturday.

    Those directly affected by last week's devastating earthquake and tsunami can fly free of charge, but people wishing to leave Japan who have not been directly affected will pay about £600 per seat.
  9. [verwijderd] 19 maart 2011 15:40

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    Japan Confirms High Radiation in Spinach and Milk Near Nuclear PlantBy KEN BELSON and HIROKO TABUCHI
    Published: March 19, 2011

    TOKYO — The government said Saturday that it had found higher than normal levels of radioactive materials in spinach and milk at farms near the ravaged nuclear power plants, the first confirmation by officials that the nuclear crisis unfolding at power plants nearby has affected the nation’s food supply.

    Tokyo Electric Power Company, with help from the Japan Self-Defense Force, police and firefighters, continued efforts to cool the damaged reactors on Saturday. About 500 workers from the utility connected a transmission line almost a mile long to Reactor No. 2 at the Fukushima Daiichi Power Station. They hope to restart a cooling system there on Sunday.

    Restoring power at the reactor could provide a glimmer of hope after days of increasingly dire news that now includes contaminated food. Yukio Edano, the chief cabinet secretary, said that spinach and milk were the only two products that were found with abnormally high levels of radioactive materials. The newly discovered radioactivity contained in the average amount of spinach and milk consumed during an entire year would be equal to the amount received in a single CAT scan.

    “These levels do not pose an immediate threat to your health,” Mr. Edano said, adding that the Health, Labor and Welfare Ministry would provide additional details. “Please stay calm.”

    The government is considering conducting more comprehensive tests of agricultural products from areas further away from the damaged reactors to address public anxiety about the country’s food supply, he said.

    Food safety inspectors said that the amount of iodine-131 found in the tested milk was five times higher than levels deemed safe. They said that the iodine found in the spinach was more than seven times higher. The spinach also contained slightly higher amounts of cesium-137.

    Iodine-131 and cesium-137 are two of the more dangerous elements that are feared to have been released from the plants in Fukushima. Iodine-131 can be dangerous to human health, especially if absorbed through milk and milk products, because it can accumulate in the thyroid and cause cancer. Cesium-137 can damage cells and lead to an increased risk of cancer.

  10. [verwijderd] 19 maart 2011 15:41

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    Health inspectors are still trying to determine whether any spinach had been shipped from the six farms in Ibaraki Prefecture where the contaminated produce was found, according to Taku Ohara, an official in the food safety division of the Health, Labor and Welfare Ministry. No contaminated milk had been shipped from the three farms where higher than normal radioactive levels had been detected.

    Mr. Ohara said that Japan is particularly strict in determining what constitutes safe radioactive levels. It is also fastidious in inspecting food imported from China and other countries. Leafy spinach is especially susceptible to absorbing radioactive material, Mr. Ohara said.

    Asparagus, cucumbers, radish, tomatoes and other vegetables are also grown in Fukushima, but have not been found to be contaminated. However, only a small number of farms have been tested because officials have been overwhelmed in the wake of the earthquake, tsunami and the nuclear crisis that followed, Mr. Ohara said.

    The government has not banned shipments of milk or spinach from the affected areas, but it would further study the issue, Mr. Edano said. The milk that contained higher levels of radioactive material was tested at farms about 19 miles from the hobbled nuclear plants in Fukushima Prefecture. The spinach was found in Ibaraki Prefecture farther south.

    Though land-poor Japan imports much of the fruit, grain and soybeans that it consumes, 79 percent of the vegetables eaten here are grown domestically. Japan is the largest net importer of food in the world.

    A handful of vegetable shop owners in Tokyo interviewed on Saturday said they were concerned about the impact of the nuclear crisis on their supplies, but they continued to sell vegetables from Fukushima and Ibaraki because they have not been told otherwise.

    However, the news of the contamination had an immediate impact on consumers. Katsuko Sato, 76, said she would stop buying spinach and, after watching Mr. Edano’s news conference, she called her family and friends to urge them not to, either.

    “Everything that we are going through now is a lot scarier than the bombing attacks during World War II,” she said. “I’m not going to believe the government because I don’t think only spinach from Ibaraki will be affected.”

    There have been no reports of contaminated fish or meat.

    Many of the ports, fleets and processing facilities in Tohoku, the area most affected by the tsunami and nuclear crisis, were so badly damaged that no fish or seafood has reached Tsukiji market in central Tokyo, according to the market’s general manager, Tsutomo Kosaka. The market handles 90 percent of the seafood for about 40 million consumers in the greater Tokyo area.

    Japan’s leading producers of premium beef, including the world-famous Kobe brand, said Saturday that they had not yet tested their cattle or feed. But they were nervous about the possible spread of radiation from Fukushima.

    “Even though the government hasn’t mentioned the possibility of contamination of beef, we should start testing to convince people the beef is safe,” said Hiroshi Uchida, a former professor of agriculture who is director of the national cattle museum in Iwate Prefecture, about 150 miles north of the damaged reactors in Fukushima. “We need scientific proof and hard data to protect the beef brand.”

    While only spinach and milk were found to have radioactive materials above established limits, some countries have been testing food imports from Japan since the day after the quake and tsunami. In Hong Kong, for instance, 216 Japanese products passed food-quality screenings, including meat, fish, fruits and vegetables.

    In Japan, the damage to the reactors has reduced the electricity supply in the greater Tokyo region, leading to rolling blackouts that have slowed business activity.

    The government is rushing to find a way to cool the damaged reactors in Fukushima to prevent a full-scale meltdown. In a news conference on Saturday, Defense Minister Toshimi Kitazawa said that temperatures outside the four hobbled nuclear reactors in Fukushima were lower than expected, but he was unable to confirm how hot it was inside the damaged buildings, leaving open the possibility that nuclear fuel may still be overheating.

    Temperatures were below 212 degrees Fahrenheit based on readings taken by firefighters from the Self-Defense Force that drove trucks with water cannons to within about 60 feet of the No. 3 reactor on Friday.

    Mr. Kitazawa said that the temperature readings had increased hopes that the nuclear fuel could be kept cool through further efforts to spray the reactors with water, while technicians worked on restoring power to the cooling systems.

    “What we are ultimately working toward is getting to a point where water is continuously pouring into the reactors,” he said, adding that engineers were also working to find a way to assess water levels inside the reactors, which were currently unapproachable by workers because of high levels of radiation.

    The National Police Agency said on Saturday that there were nearly 7,200 confirmed deaths so far because of the earthquake and tsunami last week, and nearly 11,000 people remained missing. Authorities have said they expect the final death toll to exceed 10,000.
  14. [verwijderd] 19 maart 2011 17:03

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    Radioactive iodine beyond limit detected in tap water in Fukushima
    TOKYO, March 20, Kyodo

    Radioactive iodine beyond Japan's regulated standard was detected in tap water in a town in Fukushima Prefecture on Thursday, apparently due to the nuclear crisis at the Fukushima Daiichi nuclear power plant, the government said Saturday.

    The health ministry said levels on Friday and Saturday in the town of Kawamata were below the limit but milk there has been found to contain radioactive iodine above the country's standard, raising concern about radioactive contamination in the region.

    Kawamata is located around 45 kilometers northwest of the nuclear power plant.

    Meanwhile, slight amounts of radioactive iodine have been detected in tap water in Tokyo, its vicinity and most prefectures neighboring Fukushima, the government said the same day.

    While the substance was found in Tochigi, Gunma, Niigata, Chiba and Saitama prefectures as well as Tokyo, traces of cesium have been also found in tap water in Tochigi and Gunma, the Ministry of Education, Culture, Sports, Science and Technology said, adding the levels would not affect human health even if ingested.

    Tochigi, Gunma and Niigata prefectures border Fukushima Prefecture.

    The Health, Labor and Welfare Ministry notified local governments that if levels of radioactive materials in tap water rise above regulated standards, people should refrain from drinking tap water, but added there is no problem at the moment with using it as usual and there is no danger to human health.

    The education ministry said 77 becquerels of iodine was found per kilogram of water in Tochigi, 2.5 becquerels in Gunma, 0.62 becquerels in Saitama, 0.79 becquerels in Chiba, 1.5 becquerels in Tokyo and 0.27 becquerels in Niigata, against an intake limit of 300 becquerels.

    The amount of cesium per kilogram of water was 1.6 becquerels in Tochigi and 0.22 in Gunma, against the limit of 200 becquerels set by the Nuclear Safety Commission of Japan.

    The Gunma prefectural government said it had detected the substances for the first time since it began testing tap water for radioactive materials in 1990.

    The education ministry plans to compile data on levels of radioactive materials in tap water from all prefectures once a day in principle. In addition, the ministry will start to announce levels in atmospheric fallout such as rain and dust.
  15. Robin82 19 maart 2011 17:19

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    positief is dat er wel radioactiviteit in het drinkwater van Tokio is aangetroffen maar dat het nog net binnen de maximum grenzen valt die de regering heeft opgesteld.
    (je wordt wel ziek maar niet zo erg, dat stelt je toch gerust als Japanezer lijkt me...)

    Er zijn dus nog enkele lichtpuntjes.
  16. [verwijderd] 19 maart 2011 17:34

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    Nuclear Radiation Experts: 2,000 Tons Nuclear Materials Spewing Radioactivity for Months | Earth and Industry

    earthandindustry.com/2011/03/nuclear-...

    March 19, 2011
    Earlier today, Earth & Industry had the chance to participate in a call with leading international radiation experts and learn what they had to say about the crisis at the Fukushima Daiichi Plant and the threats posed by nuclear fallout.

    The Physicians for Social Responsibility news event was held to address concerns about misleading and incomplete information that is being provided about the Japanese nuclear catastrophe and was led by Dr. Ira Helfand, lifelong nuclear energy educator and former president of Physicians for Social Responsibility; Dr. David Richardson, associate professor of epidemiology at the School of Public Health, University of North Carolina; and Dr. Marvin Resnikoff, an international consultant on radioactive waste issues.

    A streaming audio replay of this telenews conference will be available here. Read on to learn more about areas of concern and the impact of this disaster.

    2,000 Tons of Nuclear Materials at Fukushima Daiichi

    Six reactors, seven fuel pools and a storage tank total almost 2,000 tons of nuclear material. The reactors alone are storing 1000 times as much nuclear energy as the Hiroshima bomb released in one concentrated dose and include waste that has been undergoing nuclear fission for 3 years. Continued exothermic reactions make for more radioactive contaminants and contribute to the gravity of the daunting situation in Japan, which has left at least 10,000 dead.

    The Heat is On---For Months!

    Steam explosions and burn off from exposed fuel pools are the hazards causing the most concern.

    The International Atomic Energy Agency has confirmed a partial meltdown in reactors 1, 2 and 3 and workers have already experienced two fires at Reactor 4. They can no longer get close to problem areas because water, which serves to shield workers and cool the fuel, is not being dropped and gamma radiation is extremely high. As the water evaporates it exposes the nuclear fuel and uranium rods begin to burn, emitting more heat and radioactive cesium. Uranium is then able to mix with water and begin the reaction that sends radiation into the atmosphere.

    Reactor #3 is especially dangerous, as it is fueled with a combination of Mox and uranium. Mox fuel releases plutonium, which has a 24,200 year half-life and can cause lung cancer at extremely low doses.

    Roofless spent-fuel pools sit at the top of the reactors (70-80 feet up), if these pools aren't cooled to a temperature below 1800 F, hydrogen will be created and more explosions will occur.

    Though water cannons are being deployed, Japan is having trouble resupplying water to cool the affected areas, which leads Dr. Resnikoff to believe that temperatures could be soaring for months.

    External Ionizing Radiation and Human Health

    There remains a lack of information on the environmental levels of external ionizing radiation--the kind that moves through the body in waves (think: gamma and beta rays)--but knowing these measurements of total body radiation exposure doesn't indicate personal health risk as much as knowing the exposure rate to specific tissues. We do know that the "Fukushima 50" (the workers left battling the meltdown) are in a grave situation, facing hazards of extreme heat, explosions and fires, and that the workers must move through some sites in a matter of minutes to avoid acute radiation.

    Radioactive Isotopes and Ambient Radiation

    Ambient radiation and the dispersion of radioactive isotopes will cause numerous health problems, warns nuclear expert, Dr. Ira Helfand. Radioactive isotopes may be inhaled, ingested, or absorbed into the bloodstream through open wounds and pose more of a threat to the Japanese population than radiation waves or beams. Land 100 miles downwind of Chernobyl was contaminated with radioactivity and is still not safe to use, "if winds blow in the direction of Tokyo, it is conceivable that large parts of Tokyo could be contaminated in this way," he says. A forecast for easterly winds could be the city's saving grace.

    Exactly how much ambient radiation will be released is impossible to say and measured levels vary dramatically moment to moment. We will likely not know the volume released to the environment until the materials that remain stored at Fukushima are assessed. The highest levels noted by Dr. Helfand are 40 rems-- a dose that would cause sickness after 2.5 hours of exposure.

    Of the 200 different radioactive isotopes that could be released, 4 pose real risk to human health:

    Iodine 131 - concentrates in the thyroid, has a half-life of 8 days, leads to thyroid cancer

    Strontium 90 - concentrates in bone marrow, has a half-life of 90 years, leads to bone cancer and leukemia

    Cesium 137 - prevalent in all tissues, has a half-life of 30 years, can cause multiple cancers

    Plutonium 239 - concentrates in the lungs, has a half-life of 24,200 years, low doses lead to lung cancer
  17. forum rang 7 mvliex 1 19 maart 2011 17:36

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    quote:

    Roy2 schreef op 19 maart 2011 14:06:

    [...]
    Ik merk dat ik me daar ook bijzonder aan erger.

    Niets persoonlijks, maar gewoon een filosofisch vraagje: Als iemand het tegenovergestelde doet, wordt er nooit geïrriteerd gereageerd. "Aha, jij zit zeker long, want je bent de beurs vreselijk omhoog aan het praten." Waarom wordt dat laatste wel geaccepteerd?
    @Roy2,
    Ik ben van mening dat je de beurs niet omhoog of omlaag kan praten. Hooguit een handjevol beleggers zullen er op reageren en daarmee beinvloed je de beurs niet maar laten zich een paar enkelingen in de luren leggen. Dat laatste is ook erg maar dat doet men zichzelf aan. Dat wil niet zeggen dat het goed te praten is dat notoire shorters dergelijke rampen met zoveel menselijk leed misbruiken om te proberen hun doel te bereiken.
    Daarnaast is er al eerder opgemerkt dat de persoon nu in kwestie, Robin82, zonder verwijzingen maar dingen roept op de diverse fora, regelmatig zelfs letterlijk dezelfde berichten op de verschillende fora. Het is een goede zaak dat het hier gebruikelijk is om de 'link' te plaatsen waar je je info vandaan hebt. Dat voorkomt blind roeptoeteren.
    Verder wil ik opmerken dat personen als Robin82 en bijv. Paulta er niet voor schuwen om slechts eenzijdige info te plaatsen. De laatste heb ik er zelfs op betrapt halve info te plaatsen waardoor het bericht negatief leek te zijn terwijl het met volledige info juist positief was.
    Ook mag er van mij volop worden gereageerd als iemand uitsluitend positieve info plaatst of ook met halve (on)waarheden te boel probeert te verdraaien.

    Tenslotte, erger je niet want dat doe je jezelf aan en zelfs veel geld is het niet waard om je geluk te laten aantasten!
  18. [verwijderd] 19 maart 2011 17:36

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    De westerse media is deze ramp aan 't uitbuiten en proberen ons nog banger te maken dan we al zijn. Met name voor de linkse media is dit een strategische ramp aangezien zijn tegen kerncentrale's zijn.
    Maar ook de Telegraaf kan er wat van met de meest rampzalige/angstaanjagende krantenkoppen.
    Heb toch nog steeds veel vetrouwen in die gekke Japanners...maar ja, ik moet wel.
  20. Robin82 19 maart 2011 17:46

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    De japanse regering en de exploitant van de kersentrale's probeerden tegen beter in de mensen rustig (en dom) te houden maar nu de situatie zodanig is verslechterd en de laatste noodoplossing? zich aandient wordt eindelijk openheid gegeven.
    (het is zoals verwacht vele male erger, en het ergste moet nog komen!)

    De exploitant van de kerncentrale heeft nu het plan geopperd om het 40 jaar oude complex te begraven in cement. Dit is mogelijk een teken dat de andere pogingen om een volledige meltdown te voorkomen, zoals het dumpen van water of het aansluiten van stroomkabels, niet het beoogde effect hebben. Sommige experts waarschuwen dat de beton-optie niet zonder risico’s is.

    Alle zes reactoren bevatten plutonium

    Het was reeds bekend dat in reactor 3 een combinatie van plutonium en uranium wordt gebruikt. Inmiddels is duidelijk geworden dat alle zes de reactoren van het Fukushima Dai-Ichi complex plutonium bevatten. Met behulp van plutonium worden nucleaire wapens gemaakt en het is vele malen giftiger dan uranium.

    Zes procent van de splijtstofstaven in reactor 3 bestaan uit een combinatie van plutonium-239 en uranium-235. De reactorbrandstof in de andere reactoren bestaat enkel uit uranium, maar zelfs daar wordt plutonium gecreëerd tijdens het splijtproces.

    Dit houdt in dat de brandstof in alle reactoren en alle gebruikte splijtstofstaven plutonium bevatten. Plutonium is minder stabiel dan uranium en kan gemakkelijk een nucleaire kettingreactie veroorzaken. Het brengt direct schade toe aan longen en nieren.

    De Fukushima centrale heeft een behoorlijk aantal splijtstofstaven in opslag. Volgens exploitant TEPCO is meer dan 3.400 ton reactorbrandstof opgeslagen in zeven opslagbaden, waaronder een gedeeld bad waarin zeer oude staven van reactoren 3 en 4 liggen opgeslagen.

    Plutonium-239 heeft een halfwaardetijd van 24.000 jaar, wat betekent dat het materiaal nog lang radioactief blijft. Uranium-235 en cesium hebben een halfwaardetijd van respectievelijk 700 miljoen en 30 jaar.

    Recentelijk heeft Japan een complex gebouwd om plutonium en uranium opnieuw te gebruiken. Hiertoe wordt de substantie mengoxide (MOX) gevormd. Het complex bevindt zich in Rokkasho, een dorp op 500 kilometer ten noorden van Fukushima, en is pas geleden opgestart. MOX heeft een hogere verbrandingsgraad dan uraniumoxide en is tot twee miljoen keer gevaarlijker dan uranium.

    Intussen lijkt het volk ondanks de barre omstandigheden optimistisch te blijven. De minister-president van het land blijft zijn volk moed inpraten.

    Wat kunnen we nu verder verwachten? Vanwege het extreem hoge stralingsniveau is het niet eenvoudig in de reactoren zelf te kijken, waardoor de situatie onzeker blijft. Als de reactorbrandstof geheel droog komt te staan kan deze volledig smelten waarna een chemische explosie kan volgen.

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