Industrialized Cyclist Notepad

Jefferson County Parkway

…is about more than spreading the cancer of suburban development. It is also the latest installment in a long project to cover up history and erase responsibility.

Microsoft Word - Krey-Hardy Clean.doc
click to enlarge

Distribution of plutonium contamination from Rocky Flats in becquerels per square meter (one becquerel equals one disintegration or burst of radiation per second). The original version of this map was prepared by P. W. Krey and E. P. Hardy of the Atomic Energy Commission’s Health and Safety Laboratory, New York City, and published in their 1970 report, “Plutonium in Soil Around the Rocky Flats Plant,” HASL 235. Sampling done in September 2011 along Indiana St. by independent scientist Marco Kaltofen showed that present deposits of plutonium are roughly equivalent to the levels measured by Krey and Hardy in 1970. The dotted red line shows the route of the proposed Jefferson Parkway.

via Leroy Moore: Rocky Flats and the Risk Society | LeRoyMoore's Blog.

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.