Thursday, March 17, 2011

Radiation in Tokyo Same as Eating 1.5 Bananas

A bit more on perspective. 

    First, here is a link to a map of a few dozen independent radiation monitoring stations. You can click to see the radiation measurements in real time.  

http://bit.ly/ep3BJN 


(For easier to understand info read this: )

    Second, back in school we talked about the "Banana Equivalent Dose."  You see, bananas contain a lot of potassium, and a certain amount of the Earth's potassium is slightly radioactive.  Eating a banana will expose you to about 0.1 microSv. Currently radiation levels in Tokyo are about the same exposure as eating 1.5 bananas. 



    I don't want to make light of the seriousness of the situation, but there is no radiation danger for those of us in Tokyo.

Tim

4 comments:

JT said...

Is there radioactive caesium and strontium in bananas?

Anonymous said...

That's no ordinary banana!

nige said...

JT: there is naturally radioactive potassium-40 in bananas, which by anti-nuclear propaganda standards of half-life should be more scary than caesium and strontium!

Natural potassium-40 has a half-life of 1,248,000,000 years, compared to only about 30 years for strontium and caesium!

Mary O'Connor said...

Totally agree