Radiobiology is a field of clinical and basic medical sciences that involves the study of the action of ionizing radiation on living things, especially health effects of radiation. Ionizing radiation is generally harmful and potentially lethal to living things. Radioactivity in Building Biology is related to building and background radiation in new building sites. Radioactivity – giving off an energetic subatomic particle. Radioactive materials- containing unstable atoms that decay.
Natural: Pumice, concrete aggregates,drywall , tiles , granite, block and antiques.
Man Made: medical, nuclear weapons and power plants.