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  (Source: nationalgeographic.com)
It's a seven-point scale

The Fukushima Daiichi nuclear plant in Japan has had issues with toxic water leaving the site of its damaged reactor, and now, Japan's nuclear agency is upping the toxicity level of this water. 

Japan's Nuclear Regulation Authority is looking to raise the alert level of a leak at the plant from a one to a three on the International Nuclear and Radiological Event Scale (INES). INES is a seven-point scale. 

The move still has to be approved by the United Nations' nuclear agency.

The reason behind this increase in severity is the fact that 300 tonnes of radioactive water is leaking into the Pacific Ocean from the plant daily, which contains radioactive particles of cesium, tritium and strontium. To make matters worse, Tokyo Electric Power Company (Tepco) said that one puddle of the toxic water emits 100 millisieverts an hour of radiation. 

"One hundred millisieverts per hour is equivalent to the limit for accumulated exposure over five years for nuclear workers; so it can be said that we found a radiation level strong enough to give someone a five-year dose of radiation within one hour," said Masayuki Ono, general manager of Tepco.

Officials are already working to try and prevent more toxic water from leaving storage tanks, such as the leak that may receive a three on the scale. For instance, sandbags are being used to surround the tank and absorb water. 

Just last week, it was announced that Japan was looking into creating an ice wall, which would turn soil into a permafrost-type condition through the use of refrigerated coolant. This would build an underground containment wall made of ice to hold the water and stop it from going into the Pacific. 

However, the government doesn't have a cost estimate for the project yet. Kajima Corp. -- the construction company that largely built the nuclear plant -- has until March 31, 2014 to create a feasibility study of the ice wall.

The government would like the project to be completed by July 2015. 

Back in March 2011, a 9.0-magnitude earthquake shook Japan and crippled the reactor at Fukushima Daiichi nuclear plant. It caused quite a bit of havoc with the release of radioactive watercontamination of crops and of course, the thousands of lives lost.

Source: BBC News



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RE: Damn, this is disturbing!
By V-Money on 8/21/2013 6:51:55 PM , Rating: 2
quote:
When five years of radiation for a worker is concentrated into one hour of leaked radiation on a daily basis, this cause for concern. The government of Japan tried to downplay the event saying it was safe to be at a certain distance, but the evidence shows for itself. Just wait until cancers start occurring on residents even at a distance from the plant.


It's still not nearly as bad as you are trying to make it out to be. First off the "limits" for radiation worker (I was one for six years) are very, very conservative, so five times the amount over a 5 year period won't realistically do much.

Second, this amount of radiation is being measured at the highest source...meaning that unless you stand right next to the source for an hour straight you won't receive nearly that much (and if you are you deserve to get cancer for being so stupid).

Third, and this is the important part, there are many things that will cut down that radiation. For instance, 2" of lead, 4" of steel, and 24" of water will cut down that radiation by 90% (10th thickness...look it up if you don't believe me), so if there is at least 2 feet of water between you and the source it is already only 10% what they claimed (assuming you are right next to the source, the farther away from it that you are the less it is). If there is 4 feet of water between you and the source it cuts gamma radiation down by another 90%, or to 1% of the original amount. This also assumes worst case of being next to the one puddle that is that high, or the "hot spot".

Now I am in no way saying that this is a good thing, radiation is a bad thing that you want to avoid, but the levels that we are realistically exposed to are no worse than any of the other crap we introduce our bodies to (such as highly processed fast foods or the high level of stress that we cause by worrying too much about things we don't understand, not to mention pollutants caused by other power plants such as coal). I guarantee though that now when anyone in the general area gets cancer it will be blamed on this.

All I'm asking from you anti-nuclear types that don't even pretend to understand anything about nuclear power yet talk about it as if you are all experts is to realize that radiation is not guaranteed to cause damage (at these levels, it would take a lot more radiation to guarantee damage) but it increases the risks. This is like how you increase the risk of dying in an accident by simply driving. There are risks, and radiation exposure can increase your chances of getting cancer, but not by the levels that you think.


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