Industrialized Cyclist Notepad


Plutonium-239 and Americium-241 Contamination in the Denver Area

Now with Cesium sprinkles!

A 1972 article notes a ‘thin layer’ of Pu-239 contamination. I suppose that’s good news of a sort. The operators of Rocky Flats, however, went on to illegally incinerate and dump waste at least through 1989, when the plant was raided by the FBI.

Measurements of 239Pu and 90Sr in the top 1 cm surface layer of soils show that in this layer the 239Pu contamination in offsite areas just east of the Rocky Flats plant ranges up to hundreds of times that from nuclear tests. In the more densely populated areas of Denver the Pu contamination level in surface soils is several times fallout.

Plutonium-239 and Americium-241 Contamination in the Denver… : Health Physics.



Dirty Bismark

I don’t know — is that the proper term? Sounds nasty.

I rode this for the first time recently. A new twist on an old classic near Boulder.




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