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The most common radionuclides in drinking water are radium, radon and uranium. Most of the radionuclides in drinking water occur naturally at very low levels and are not considered a public health concern.

What is the source for radionuclides?

Radionuclides in our environment are produced by minerals in the Earth's crust, by cosmic rays hitting atoms in the Earth's atmosphere, and by human activities. Radionuclides occur naturally in many rocks and minerals. Some radionuclides in rocks, such as uranium, have been present since the Earth formed.

What are the effects of radionuclides present in water?

Different doses of radiation cause different health effects. Drinking water that has radionuclides in it puts you in contact with very low doses of radiation every day. You have a higher risk of getting cancer if you drink water with radionuclides in it every day for many years.

What are the 3 main radionuclides?

On Earth, naturally occurring radionuclides fall into three categories: primordial radionuclides, secondary radionuclides, and cosmogenic radionuclides.

What are natural radionuclides?

The natural radionuclides include the primordial radioactive elements in the earth's crust, their radioactive decay products, and radionuclides produced by cosmic-radiation interactions. Primordial radionuclides have half-lives comparable with the age of the earth.

What are some examples of radionuclides?

Radioactive forms of elements are called radionuclides. Radium-226, Cesium-137, and Strontium-90 are examples of radionuclides.. Some occur naturally in the environment, while others are man-made, either deliberately or as byproducts of nuclear reactions.

What are the types of radionuclide?

What are the different types of radionuclides? The most common are radon, radium, uranium, gross alpha, and beta and photon emitters. Common Radionuclides: Radon is a naturally occurring gas that emits ionizing radiation.

What are radionuclides used for?

A radionuclide is used which collects in areas where there is a lot of bone activity (where bone cells are breaking down or repairing parts of the bone). So a bone scan is used to detect areas of bone where there is cancer, infection, or damage. These areas of activity are seen as 'hot spots' on the scan picture.

What are the four methods of producing radionuclides?

Generally there are four common methods of radionuclide production for nuclear medicine: fission, neutron activation, cyclotron and generator (Table 1).

How do you identify radionuclides?

The radionuclide is identified by the energy at the midpoint of the characteristic full-energy peak. It is quantified in terms of the count rate in the channels that define the full-energy peak. Subtracted from this count rate is the count rate in these channels due to other gamma rays discussed in Section 10.3.