Originally posted by Denny
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8.8 Magnitude Earthquake hit Japan
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Originally posted by mstng86 View PostSurely they have a good understanding of how many people are missing by now, right?
Anyone seen that number?
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Originally posted by stevo View PostThe Tokyo one went blank also.
Stevo
Normal range is usually under 60 CPM. Over 130 is not good.
100 CPM is equivalent to 1 microsievert or 0.1 millirem.
The dangerous level recorded at one of the reactors this morning was 400,000 microsieverts.
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Originally posted by Denny View PostI guess I'm reading it wrong because that looks like a lot. 400,000 microsieverts is like 40 million CPM, according to what you posted.
100 CPM is equivalent to 1 microsievert or 0.1 millirem.
400,000 microsiverts / 100 CPM = 4000 CPM
However I should note that I copied this info from a Japanese news blog. I'll go confirm.
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Originally posted by Denny View PostI guess I'm reading it wrong because that looks like a lot. 400,000 microsieverts is like 40 million CPM, according to what you posted.
1 sievert = 100 rem
What is a lethal dose from a single instance of radiation? According to studies made after the atomic bomb explosions in 1945 at Hiroshima and Nagasaki, half of the people died whose entire bodies were exposed to 450,000 millirems of radiation from the atomic bomb. All persons died whose bodies were exposed to 600,000 millirems of radiation.
That's more than a full order of magnitude less than the LD 50 at Hiroshima. Also keep in mind that the 400 millisievert number is from right next to the reactor building.Last edited by Strychnine; 03-15-2011, 08:01 AM.
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Originally posted by Strychnine View Post400000 microsieverts = 400 millisieverts. That's what the #3 reactor was measured at yesterday.
1000 millisieverts = 1 millirem
400 millisieverts = 40 000 millirem.
That's more than a full order of magnitude less than the LD 50 at Hiroshima.
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