William K Terry, Ph.D. nuclear engineering, fusion: Leroy Moore says that one alpha particle can cause a mutation that leads to cancer. Yes, that's true. But that's not the same as saying that you are at significant risk of cancer if one atom of an alpha emitter, such as plutonium-239, is lodged in your lung.
Edward Calabrese, Professor of Toxicology at the University of Massachusetts, Amherst: The linear no-threshold (LNT) single-hit dose response model for cancer risk assessment is evaluated with respect to its historical foundations. The analysis demonstrates that the LNT model was inappropriately adopted for risk assessment, regulatory policy and risk communication.
Edward Calabrese, Professor of Toxicology at the University of Massachusetts, Amherst: The Linear-No-Threshold paradigm, which asserts there are no safe exposure levels, is the product of a flawed and corrupted science. This recommendation would ultimately be accepted by leading regulatory and advisory bodies in the United States and internationally, and extended to other prospective hazards like chemical carcinogens.
William Doss, Writer for radiologybusiness.com, Jeffrey Siegel, President and CEO of Nuclear Physics Enterprises.: A group of nuclear energy executives and consultants refuted the nearly 80-year-old belief that low doses of radiation can eventually cause cancer, instead positing that it produces a beneficial biological response, in an article published in the Journal of Nuclear Medicine. They argue the long-held Linear No-Threshold Hypothesis is flawed.