https://www.msn.com/en-us/news/us/expert...blic/ar-BBTR3vx

This is a followup article on an unusual situation at Grand Canyon National Park, where the park safety officer states that workers and visitors in one o the park buildings were exposed to dangerous levels of radiation from three buckets of uranium ore kept in the building.

The article cited above gives the response o experts who dispute, on various grounds, the dangers to which people were exposed. note that one of those quoted says that gamma rays pose insignificant dangers since they are stopped by almost anything.

This didn't agree with what I remembered from my long ago high school physics class so the quote below from Wikipedia:


"Gamma rays are ionizing radiation and are thus biologically hazardous. Due to their high penetration power, they can damage bone marrow and internal organs. Unlike alpha and beta rays, they pass easily through the body and thus pose a formidable radiation protection challenge, requiring shielding made from dense materials such as lead or concrete."

So something is screwed up. It is best to take a lot of breaking stories with a grain of salt (non-iodizing)....


Edited by hikermor (02/20/19 08:35 PM)
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