Air Pollution

Air Pollution Air Pollution CFish Mr. Nollen Biology 2B 8 May, 1996 The Problem Contamination of the atmosphere by gaseous, liquid, or good wastes or by-products that can endanger human wellness and the health and welfare of plants and animals, or can attack materials, reduce visibility, or produce undesirable odors. Among air pollutants emitted by natural sources, alone the radioactive gas radon is recognized as a major health threat. A byproduct of the radioactive take back of uranium minerals in certain kinds of rock, radon seeps into the basements of homes built on these rocks. According to recent estimates by the U.S. government, 20 percent of the homes in the U.S. harbor radon concentrations that are high enough to award a risk of lung cancer. Each year industrially sure countries generate billions of tons of pollutants. The level is usually given in terms of atmospheric concentrations or, for gases in te rms of parts per million, that is, num...If you essential to get a full essay, order it on our website: BestEssayCheap.com

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