The U.S. Million Person Study of Low-Dose-Rate Health Effects

June 27, 2025, 3:02PMNuclear NewsLawrence Daur
Clockwise from top left: Calutron operators at their panels in the Y-12 plant at Oak Ridge, Tenn., the USS Nautilus SSN571, women working in a factory of the United States Radium Corporation, and the front face of the B Reactor at the Hanford site.

There is a critical knowledge gap regarding the health consequences of exposure to radiation received gradually over time. While there is a plethora of studies on the risks of adverse outcomes from both acute and high-dose exposures, including the landmark study of atomic bomb survivors, these are not characteristic of the chronic exposure to low-dose radiation encountered in occupational and public settings. In addition, smaller cohorts have limited numbers leading to reduced statistical power.

The criminalization of nuclear

Mary Lou Dunzik-Gougar

Nuclear energy is the cleanest, safest, densest, and most reliable energy source. The value proposition for nuclear energy is unparalleled. It is the only commercially proven, “dispatchable” clean energy technology that can be scaled up fast enough to meet the demand for electricity in a decarbonizing scenario. It is the answer for governments and nongovernmental organizations worldwide that are clamoring for a reduction in human-generated CO2 emissions. Humans flourish when they have access to plentiful, safe, and reliable energy. Nuclear excels at all of these.

Calming fears about low-dose radiation

March 8, 2021, 12:00PMANS NewsMary Lou Dunzik-Gougar

Mary Lou Dunzik-Gougar

During my time as vice president and president of ANS, I have been advocating for a new approach to implementing dose limits across the nuclear industry. A lack of understanding and an unfounded fear of radiation has resulted in widespread efforts to minimize dose, rather than to optimize radiation protection in a holistic sense. I want to put the “reasonably” back into ALARA (“as low as reasonably achievable”). Such a paradigm shift, from minimization to optimization, while easily said, equates to a major cultural change spanning international government agencies, industry, nongovernmental organizations, professional societies, and even academia. It is essential to have the active participation of all stakeholders in a transparent process to effect such a change. This process will not only lead us toward a more level playing field for nuclear, it will also greatly impact public perception of nuclear and radiological technology.