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Is the West Coast in danger?

1/3/2014

2 Comments

 
By Lenka Kollar

I received a question from one of my readers this morning regarding the damaged Fukushima Daichi nuclear reactor having another meltdown and a radiation cloud reaching the West Coast of the United States. There is so much misinformation on the internet about Fukushima that I'm not surprised that people are concerned. If I wasn't a nuclear engineer that knew the facts, I would be concerned too. 

The article the reader sent to me warns that steam emanating from the damaged reactor building is evidence that the nuclear material has reached criticality and is melting down and releasing radioactive material into the atmosphere. However, the steam is likely rainwater evaporating according to this report directly from TEPCO (Tokyo Electric Power Company). No change in radiation dose has been observed since the steam started appearing. No worries, there will be no "radiation cloud" reaching California "within 3-5 days" that would harm your health.
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There have also been many rumors of radioactive contamination on the West Coast due to Fukushima but they are false. There has been leakage of radioactive material into the ocean but it is so small compared to the massive size of the ocean that it does not raise the radioactivity level of the ocean more than what is already there. The image above explains this visually. There is about 500,000 times more natural radioactivity in the oceans than was added by Fukushima. I would be far more concerned about chemical waste (agriculture runoff, oil spills) than radioactivity in the ocean. 

Check out Hiroshima Syndrome, a blog written by one of my nuclear engineering colleagues and a good source for debunking Fukushima conspiracy theories on the internet.
2 Comments
Marcel Williams link
1/5/2014 03:06:28 pm

An excellent and very informative article!

Since Japan has increased its use of coal since Fukushima, it would be interesting to find out how much they've also increased their radiation exposure levels by shutting down nuclear power plants and increasing coal production for electricity.

Marcel

Reply
Lenka Kollar link
1/5/2014 11:49:10 pm

I agree, it would be interesting to see how much more radiation and other toxins Japanese residents are being exposed to due to increasing use of coal energy. Most people do not realize that coal power plants actual emit more radiation into the atmosphere than nuclear power plants (which emit none under normal conditions).

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Photos used under Creative Commons from Idaho National Laboratory, Jim.Richmond, Idaho National Laboratory, IAEA Imagebank