low-level radioactivity
81Mutagen — In genetics, a mutagen (Latin, literally origin of change) is a physical or chemical agent that changes the genetic material, usually DNA, of an organism and thus increases the frequency of mutations above the natural background level. As many… …
82Rocky Flats Plant — The Rocky Flats Plant was a United States nuclear weapons production facility near Denver, Colorado that operated from 1952 to 1992. It was under the control of the United States Atomic Energy Commission (AEC) until 1977, when it was replaced by… …
83Rokkasho, Aomori — nihongo|Rokkasho|六ヶ所村| mura is a village located at 40.97 N, 141.37 E in Kamikita District, Aomori Prefecture, Japan.As of February 1, 2008 the village had an estimated population of 11,095 and a population density of 43.9 persons per km². The… …
84radioactive waste — noun useless radioactive materials that are left after some laboratory or commercial process is completed • Hypernyms: ↑radioactive material • Hyponyms: ↑high level radioactive waste, ↑low level radioactive waste * * * the radioactive by products …
85Mihama Nuclear Power Plant — Mihama Nuclear Power Plant …
86Three Mile Island (book) — Three Mile Island: A Nuclear Crisis in Historical Perspective is a scholarly history of the Three Mile Island accident, written by J. Samuel Walker and published in 2004. Walker is the Nuclear Regulatory Commission s historian and his book is the …
87background — noun 1》 part of a scene, picture, or description that forms a setting for the main figures, events, etc. 2》 the circumstances prevailing at a particular time or underlying an event. ↘a person s education, experience, and social circumstances …
88background — ► NOUN 1) part of a scene or description that forms a setting for the main figures or events. 2) information or circumstances that influence or explain something. 3) a person s education, experience, and social circumstances. 4) a persistent low… …
89Chernobyl disaster — This article is about the 1986 nuclear plant accident in Ukraine. For other uses, see Chernobyl (disambiguation). Chernobyl disaster …
90dating — I In geology and archaeology, the process of determining an object s or event s place within a chronological scheme. Scientists may use either relative dating, in which items are sequenced on the basis of stratigraphic clues (see stratigraphy) or …
