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Comment Re:How stupid (Score 1) 230

Compare the uranium content of coal ash and low carbon soil. It's the same. It is well known that carbon-14 comes from thermal neutron absorption by nitrogen in the upper atmosphere. Isolating carbon from the atmosphere causes the fraction of carbon-14 to fall. This is how radiocarbon dating works. Diluting the atmospheric carbon with fossil carbon reduces the carbon-14 content of food and thus our internal radiation load.

Comment Radiation makes you stupid (Score 1) 230

"Johns Hopkins scientists report that rats exposed to high-energy particles, simulating conditions astronauts would face on a long-term deep space mission, show lapses in attention and slower reaction times, even when the radiation exposure is in extremely low dose ranges. The cognitive impairments — which affected a large subset, but far from all, of the animals — appear to be linked to protein changes in the brain, the scientists say." http://www.hopkinsmedicine.org...

Submission + - Is EPA About To Relax Radiation Protections From Nuclear Power? (forbes.com)

mdsolar writes: Both proponents and opponents of nuclear power expect the Environmental Protection Agency in coming months to relax its rules restricting radiation emissions from reactors and other nuclear facilities. EPA officials say they have no such intention, but they are willing to reconsider the method they use to limit public exposure—and the public’s level of risk.

At issue is a 1977 rule that limits the total whole-body radiation dose to any member of the public from the normal operation of the uranium fuel cycle—fuel processing, reactors, storage, reprocessing or disposal—to 0.25 millisieverts per year. (This rule, known as 40 CFR part 190, is different from other EPA regulations that restrict radionuclides in drinking water and that limit public exposure during emergencies. Those are also due for revision.)

“We have not made any decisions or determined any specifics on how to move forward with any of these issues. We do, however, believe the regulation uses outdated science, and we are thinking about how to bring the regulation more in line with current thinking,” said Brian Littleton, a chemical engineer with EPA’s Office of Radiation and Indoor Air.

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