Yokohama: Is Radiogenic Lead Hidden Or Missed?

Is Radiogenic lead hidden or missed ? (Fukushima Diary, Jan. 4, 2012):

Following up this article

At first, a Japanese lab (Isotope research institute) measured Strontium-90 from the sample.

However Yokohama city government asserted it has nothing to do with Fukushima and the lab released this report after the announcement.

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Yokohama Sample: 8400 Bq/Kg Of Radioactive Pb-210!!!

8400 Bq/Kg of lead-210 was measured from sample of Yokohama (Fukushima Diary, Jan. 4, 2012):

Following up this article about soil contamination in Yokohama

Having measured Strontium-90 from the soil of Yokohama, we suspect it may contain plutonium too.

We took 200g of the same sample and sent it to Dr C.Busby.

As a result, it was not positive for plutonium nor americium but surprisingly 8400 Bq/Kg of lead 210 (pb-210) was measured.

Honestly we are puzzled by the result and don’t know what the potential risk will be.

Dr Chris Busby comments:

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