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Radioactive contamination, also called radiological pollution, is the deposition of, or presence of radioactive substances on surfaces or within solids, liquids, or gases (including the human body), where their presence is unintended or undesirable (from the International Atomic Energy Agency (IAEA) definition).
7 Ιουλ 2023 · Today, the most common artificial sources of human exposure to radiation are X-ray machines and radiopharmaceuticals used for diagnostic or radiotherapy and other medical devices. Exposure to radiation can result from natural sources (e.g. radon in homes), planned (medical, occupational) or accidental situations.
We receive internal exposure from radioactive elements which we take into our bodies through food and water, and through the air we breathe. In addition, we have radioactive elements (Potassium 40, Carbon 14, Radium 226) in our blood or bones.
Definition. Radioactive Pollution is defined as the increase in the natural radiation levels caused by human activities. It is estimated that about 20% of radiation we are exposed to is due to human activities.
A person is externally contaminated if radioactive material is on the skin or clothing. A person is internally contaminated if radioactive material is breathed in, swallowed, or absorbed through wounds. The environment is contaminated if radioactive material is spread about or is unconfined.
27 Ιουλ 2023 · The spontaneous disintegration of atoms is called radioactivity, and the excess energy emitted is a form of ionizing radiation. Unstable elements which disintegrate and emit ionizing radiation are called radionuclides.
10 Απρ 2024 · Radioactive contamination occurs when radioactive material is deposited on or in an object or a person. A contaminated person has radioactive materials on or inside their body. Radioactive materials released into the environment can cause contamination of: Air; Water; Surfaces; Plants and soil; Buildings; People; Animals; External contamination
