Exposure to radioactive waste may cause serious harm or death. In humans, a dose of 1 sievert carries a 5.5% risk of developing cancer, and this risk is assumed to be linearly proportional to dose even for low doses. Ionizing radiation causes deletions in chromosomes. lot of this waste is alpha particle-emitting matter from the decay chains of uranium and thorium. The main source of radiation in the human body is potassium -40 (40K), typically 17 milligrams in the body at a time and 0.4 milligrams/day intake. Most rocks, due to their components, have a low level of radioactivity.
Part of the IT standards and organizations glossary: An OPAC (Online Public Access Catalog) is an online bibliography of a library collection that is available to the public. OPACs developed as stand-alone online catalogs, often from VT100 terminals to a mainframe library catalog.
From Wikipedia, the free encyclopedia. The Office of Foreign Assets Control (OFAC) is a financial intelligence and enforcement agency of the U.S. government charged with planning and execution of economic and trade sanctions in support of U.S. national security and foreign policy objectives.