Water Radiation 10,000 Times Above Normal Spurs Leakage Fears in Japan
March 25, 2011 2:50 PM
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The containment vessel of reactor No. 3 at the Fukushima Daiichi nuclear power plant may be ruptured after three workers within the plant stepped into water that contained "10,000 times the amount" of radiation that is normal for that area
While there has been some
speculation surrounding the accuracy of
on radiation in Japan as of late, the cable/web news giant has now released a new report stating that there may be a rupture in the containment vessel in reactor No. 3 at the Fukushima Daiichi nuclear power plant, and that it may be the cause of surrounding water that contains
10,000 times the amount of
normally found in the area.
The 9.0-magnitude earthquake that struck Japan on March 11 has led to tsunamis, blackouts, radiation issues such as
, and a death toll
that has passed the 10,000 mark
expected to exceed 18,000
has reported that the containment vessel of reactor No. 3 at the Fukushima Daiichi nuclear power plant may be ruptured after three workers within the plant stepped into water that contained 10,000 times the amount of radiation that is normal for that area. The job of the containment vessel is to keep radioactive material from entering the atmosphere, and according to Hidehiko Nishiyama from the Japan nuclear and industrial safety agency, "contaminated water likely seeped through the containment vessel protecting from the reactor's core."
The three workers, which were laying cables in the basement of the No. 3 reactor, were escorted to Japan's National Institute of Radiological Sciences after stepping in the radioactive water. According to Japan's Health Ministry, a person living in an industrialized country is exposed to 3 millisieverts of radiation annually. For those working directly with the nuclear plant during the current situation, the maximum
level of exposure
is 100 to 250 millisieverts per year. The three men who stepped in the radioactive water was a 30-year-old with an exposure level of 180.7 millisieverts, a 20-year-old with 179.37 millisieverts and a third man with no age specified that was exposed to 173 millisieverts of radiation. All three men spent 40 to 50 minutes in the 15-centimeter deep water.
While water in this area is normally boiled and has low levels of radiation, Nishiyama is concerned for the 536 other people working at the plant Friday when the incident occurred, and would like to improve radiation management measures.
Nishiyama would also like to improve radiation management measures at reactor's 1 and 2, which have been manageable as of late but are still experiencing difficulties. For instance, reactor No. 1 has had issues with increased pressure, and reactor No. 2 needs to switch the water for its spent fuel pool from saltwater to freshwater in order to prevent further corrosion from the salt.
Reactors 4, 5 and 6 are
being watched as well
, but do not pose as much of a threat since they underwent scheduled outages during the earthquake.
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RE: The Secret of Reactor 3
3/25/2011 4:48:59 PM
Not much of a secret, they may not be talking about it being a MOX reactor but I have seen several articles with make a point of mentioning that Reactor 3 is currently fueled with Plutonium vs the 1 and 2 being fueled with Uranium.
When exposed to air plutonium swells and begins to flake, these flakes can spontaneously ignite, spreading radiative ash if containment isn't maintained. To make matters worse, the human body isn't very good at eliminating plutonium once it is ingested, it just sits in the lungs putting out radiation for months or even years.
If it's collecting in a waste pond, well, things could be a lot worse. At least it isn't burning into the open sky, which would be an image that would make even me, a pro nuclear advocate, begin to seriously worry about the situation.
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