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how many roentgens per hour? Or if anyone can answer what normal radiation in a reactor is in roentgens per hour, that would be much appreciated.
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Kyodo news agency reports radiation levels 8 times normal levels near main gate of Fukushima nuclear plant
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Radiation levels in Fukushima Daiichi plant central control unit is 1,000 times normal, Kyodo says
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Do we have an actual radiation level reported? If the normal is 1 mrem for the central control unit, then 1000×1 is only 1000 mrem or 1 rem. That’s still not that big.
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From CNN, The quake-damaged Fukushima nuke facility will vent its air containment vessels, as pressure levels have risen dangerously. The air may contain dangerous radiation, though an official evacuation notice for nearby residents has already been declared by officials. This is the first ever state of emergency for this plant.
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An awful lot of focus is being placed on the absence of radiation release and whether release will occur. However, this focus misses the larger issue. As long as the fuel rods remain in coolant, any radiation release that occurs will be modest. The real risk is exposure of the rods to air, which will eventually (hours to days) cause them to melt and burn. Having just been removed from use, these rods are highly radioactive and contain 1000s of times the radiation present in unused fuel. It sounds as it the operator is considering a controlled release of water vapor from the reactor to relieve pressure and aid their efforts at preventing a fuel fire. Even if some radiation is released from the containment building, as long as the rods remain intact this is relatively minor problem, particularly considering other consequences of the catastrophic tsunami.
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Japan warned there could be a small radiation leak from the Fukushima nuclear plant www.reuters.com
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