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Category:	Science
Word Count:	2262
Featured Papers from Direct Essays 1. Radon 2. Music is our education 3. Dickens Our Mutual Friend 4. Our Town 5. Radon Experiment

	Radon: Our Major Source of Radiation Dose
	Radon: Our Major Source of Radiation Dose Introduction Radon-222 is a natural, radioactive isotope of element number 86, that occurs in the uranium-238 decay chain (see table 1). Its immediate parent is radium-226, and radon-222 itself decays by alpha particle emission through a series of short -lived decay products (mainly isotopes of polonium, lead and bismuth) to lead-210 and on eventually to stable lead-206. Element Radiation Half-Life Uranium-238 alpha 4,460,000,000 years Thorium-2

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Radon: Our Major Source of Radiation Dose