71-ME4211 - • Radon is a gas it can enter buildings...

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2. Reducing Risk and Nuisance Another area where it is possible to predict with some certainty opportunities for product innovation is that of safety and nuisance . There is growing awareness of governments and the public of the damage being caused to health by some of the environmental impacts of modern life and partly to changes in society creating new problems. New problems are created by actions driven by environmental considerations : worries about radon in homes where the geological conditions emit the gas have led to government action mainly because higher standards of home insulation reduce ventilation and thus allow concentrations to build up to potentially damaging levels. 1 Radon exposure can come from both water and soil/rock
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2.1 How radon works Radon- is naturally occurring, odorless, and colorless gas produced by the breakdown of uranium in soil, rock, and water .
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Unformatted text preview: • Radon is a gas, it can enter buildings through openings or cracks in the foundation. • The radon gas itself decays into radioactive solids, called radon daughters . The radon daughters attach to dust particles in the air , and can be inhaled. • The inhalation of radon daughters has been linked to health hazards . 2 2.2 Harmful Effects of Radon • Radon is the second leading cause of lung cancer (diagram to the right) and a serious public health concern. The primary adverse health effect associated with chronic exposure to radon is lung cancer (typically bronchogenic):-squamous cell carcinoma-small cell carcinoma-adenocarcinoma-large cell carcinoma 3 • Other harmful respiratory effects associated with chronic exposure to radon include: 1.) emphysema 2.) pulmonary fibrosis 3.) chronic interstitial pneumonia 4.) silicosis 5.) respiratory lesions...
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This note was uploaded on 12/07/2011 for the course ME ME4211 taught by Professor Dr.a.vyas during the Winter '11 term at NYU Poly.

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71-ME4211 - • Radon is a gas it can enter buildings...

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