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Originally posted by silo13
Anyone out there have any good sites for Russian news?
Any sites people?
Originally posted by LilFox
Well, my radiation alarm went off twice last nite and is above the norm for this area.. I can also say that another alarm located elsewhere on a building air circulation system also went off.
Canadian nuclear engineer John Luxat of McMaster University said the reported levels appeared to be well below maximum exposures set by the International Atomic Energy Agency.
Should the steel containment walls be breached in an explosion, the radioactive gases could spread for hundreds of kilometres – although the worst contamination would occur within a 50-kilometre radius. Officials insist the steel containment chambers were built to withstand an explosion in the reactor core.
Press Release (Mar 14,2011) White smoke around the Fukushima Daiichi Nuclear Power Station Unit 3 (3rd release)
At approximately 11:01am, an explosion followed by white smoke occurred at the reactor building of Unit 3. It was believed to be a hydrogen explosion. According to the parameter, it is believed that the reactor containment vessel remains intact. However, the status of the plant and the impact of radioactive materials to the outside environment are presently under investigation. (previously announced) As of 1:30 pm, 4 TEPCO employees and 3 workers from other companies have sustained injuries (all of them are conscious). 3 ambulances are in operation to care for them and 2 have already dispatched the casualties to the hospital. As of 0:30 pm, the measured value of radiation dose near MP6 was 4μSv/h. The increase of the radiation dose cannot be confirmed at this time. As of 0:30 pm, the measured value of radiation dose at the monitoring post in Fukushima Daini Power Station located approximately 10 km south of Fukushima Daiichi Power Station remains at the same level. In light of the incidents that have occurred at Units 1 and 3, we are considering applying prevention measures to the wall of the reactor building to ventilate the hydrogen gas contained in Unit 2. TEPCO continues to take all measures to restore the safety and security of the site and are monitoring the site's immediate surroundings.
How dangerous is the radiation released so far?
Japanese and Australian authorities believe any serious danger is confined to within a 20-kilometre radius of the reactors. People close to the Daiichi plant were exposed to radiation about twice Japan's legal limit, and about 200 have been taken to hospital after being exposed. Some radiation has been detected 60 kilometres from the plant, but it is not at a dangerous level. Small amounts of radioactive cesium-137 have been released. This can stay active in the environment for 30 years, and can accumulate in the food chain, making it highly dangerous.
What precautions are people taking?
People close to the reactors have been issued with potassium iodine tablets, which stop the thyroid gland absorbing dangerous iodine-131, which causes cancer if it lodges inside the body. About 260,000 people have been evacuated from the vicinity of the damaged reactors, and people near the edge of the 20-kilometre zone have been warned to stay indoors with the windows shut, to stop dust or smoke particles that could carry radioactive isotopes from the hydrogen explosions from entering their homes.
Nice work! Thanks to you and also to AstraCat for keeping up with this at the moment.
Originally posted by scoobyrob
1422: Japanese engineer Masashi Goto, who helped design the containment vessel for Fukushima's reactor core, says the design was not enough to withstand earthquakes or tsunamis and the plant's builders, Toshiba, knew this. More on Mr Goto's remarks to follow.
1426: Mr Goto says his greatest fear is that blasts at number 3 and number 1 reactors may have damaged the steel casing of the containment vessel designed to stop radioactive material escaping into the atmosphere. More to follow.
1431: More from Japanese nuclear engineer Masashi Goto: He say that as the reactor uses mox (mixed oxide) fuel, the melting point is lower than that of conventional fuel. Should a meltdown and an explosion occur, he says, plutonium could be spread over an area up to twice as far as estimated for a conventional nuclear fuel explosion. The next 24 hours are critical, he says.
ìPlutonium is an alpha-emitting transuranic element. Of the possible routes of entry into the body, the most common and most dangerous is through inhalation. In addition to irradiating lung tissue, plutonium is gradually transported to other organs, in particular, liver and bone. Once an alpha-emitter is inside the body, its radiation can cause genetic mutations and cancer with greater potency than gamma or beta radiation of the same energy. ... Experiments with beagle dogs suggest that about 27 millionths of a gram of insoluble plutonium would be sufficient to cause lung cancer in an adult human being with virtual certainty, with significant risks probably associated with far lower doses.î Note: 100 million micrograms is equivalent to 100 grams.