Air Pollution Air Pollution CFish Mr. Nollen Biology 2B 8 May, 1996 The Problem Contamination of the atmosphere by gaseous, liquid, or secure wastes or by-products that can endanger human health 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, completely the radioactive gas radon is recognized as a major health threat. A byproduct of the radioactive fall 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 show a risk of lung cancer. Each year industrially veritable countries generate billions of tons of pollutants. The level is usually given in terms of atmospheric concentrations or, for gases in terms of parts per million, that is, num...If you requirement to get a full essay, order it on our website:
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