Toxicologist says NAS panel ‘misled the world’ when adopting radiation exposure guidelines.

Aug. 13, 2013 — In two recently published peer-reviewed articles, toxicologist Edward Calabrese of the University of Massachusetts Amherst describes how regulators came to adopt the linear no threshold (LNT) dose-response approach to ionizing radiation exposure in the 1950s, which was later generalized to chemical carcinogen risk assessment.