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Natural Radioactivity in Food
Natural Radioactivity in Food
NATURAL RADIOACTIVITY NATURAL RADIOACTIVITY IN FOOD IN FOOD Natural radioactivity can be found in the food we eat and the water we drink. The act of emitting radiation spontaneously is referred to as radioactivity. This is accomplished by an atomic nucleus that is unstable and "wants" to give up some energy in order to shift to a more stable configuration. The levels of natural radionuclides in food and drinking water are generally very low, making them safe for human consumption. They can, however, vary greatly depending on local geology, climate, and agricultural practises. foods Some contain naturally occurring radionuclides such as potassium, carbon, and radium, as well as their decay products. These foods do not pose a radiation risk because the amount of radiation is so small. Food can acquire radioactivity in several ways: 1. Uptake: Plant roots absorb radionuclides from the soil. 2.Deposition: Airborne radioactive particles settle on crops. 3.Bioaccumulation: Radionuclides accumulate in animals that consume radioactive plants, feed, or water. The content of naturally radioactive substances in food is useful  to estimate man's radiation exposure from food consumption. Common Naturally Radioactive Foods Brazil Nut Banana Lima Beans Red Meat Potato Low Sodium Salt Carrot Beer Most Radioactive Food: Brazil nuts. Each banana has the ability to emit.01 millirem of radiation. THIS IS A VERY LOW LEVEL OF RADIATION.
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