First the good news: which damage that nuclear fuel rods in the Japan power plant of crippled Fukushima Daiichi happened probably takes place and for the cooling water is been restored.
Now the bad: it's always harder the radiation from the damaged fuel rods included. Worst case scenario? Containment barriers not, air and water laced with radioactive particles raising health risks for people in the immediate vicinity spew into the environment.
"There are a lot of radioactivity outside the containment barriers that pose is a danger to the workers and the public, which must be treated as a priority", Dave hole tree said, Director of nuclear power project for the Union of concerned scientists,, a Washington, D.C.-based advocacy group.
The plant cooling systems-critical for which keep both the nuclear core and spent nuclear fuel rods before überhitzung--the tsunami, could not for the 9.0 earthquake and killer posted Japan on 11 March. A last resort decision to pump sea water in the reactors to its radioactive fuel from melting and spew radioactive substances in the air bought provide time of alternatives to the water for the cooling could be found. Sure all the water used for cooling, which is now highly contaminated, is Japan's current pressing problem.
Radioactive water made its way in and around building the crippled reactors and experts do not know how. Leaking pipes and rain, which has picked up radioactive particles in the air be drained possible sources of pollution.
"The way this material out are numerous,", said tree hole.
Hole tree told reporters: "they have some control over, that some place, you, some processing plant to treat the water can put you remove as much radiation as possible out of the water." "They had to the water-I criticize not the fact that it that the water use to the spent fuel pools and the Reaktoren--cool but the legacy of this need was a big problem, they need their weapons quickly get around."
Officials believe the containers holding, that the radioactive fuels unchanged if they cannot be sure.
"The problem is that you are looking for in the reactor and see what state they are in,", said Thomas McKone, a senior environmental scientist at the Lawrence Berkeley National Laboratory, Discovery News. "At some point, having to go to remote test points to see what happens run with the core." "Right their concern to ensure that it is full of water is now."
Even if they have a large radioactive release, I think that the problems are limited to Japan, "added McKone."
Because the radioactive particles that travel over the distances they continuously break and dissipate. Be discovered radiation by individual atoms, can only tiny amounts, so that radioactive particles are sensors on the East coast of the United States and elsewhere, pickup, which Japan migrated, is not surprising, and the amounts are not close to all levels, the health concerns would trigger, according to the environmental protection agency.
Work Japan's favor: every eight days, reduces the amount of radioactive iodine, one which generated from nuclear fuel, require Spaltprodukt less cooling by 50 percent and the reactors itself intact.
Knit the crisis at Japan's nuclear plant, where officials work to stabilize four of the six reactors, is more complicated than the situation at three mile Iceland in Pennsylvania, where a reactor experienced a partial core meltdown years 32 ago.
"Things could get worse", said tree hole. "They have some equipment error more to more damage,... but it seems as the damage fuel has already happened."
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