Look up recorded information of Sparta, including demographics and local economy. Link to all levels of Sparta, government and their sites with services which provide public information. Current economy, business and housing data. Read about up to date current events and what is occurring in the Village of Sparta. Find out about the background of residents and recorded statistics.
Background radiation. The natural radiation that is always present in the environment. It includes cosmic radiation which comes from the sun and stars, terrestrial radiation which comes from the Earth, and internal radiation which exists in all living things. The typical average individual exposure in the United States from natural background sources is about 300 millirems per year.
Facts About Radiation. Radiation is energy that comes from a source and travels through space. When this energy passes into the body, either by penetrating skin or being swallowed or inhaled, it may be harmful. Whether the radiation is ionizing or non-ionizing will influence the health risks. Ionizing radiation Ionizing radiation is the high-energy radiation that causes most of the concerns about radiation exposure during military service. Ionizing radiation contains enough energy to remove an electron (ionize) from an atom or molecule and to damage DNA in cells.