Acid Rain 6
"Acid rain is a term used to describe the acidity of wet and dry deposition" (Middleton 50). Deposition is just the process of depositing. According to Middleton, who wrote the Atlas of Environmental Issues, the different types of wet deposition are snow, sleet, hail, fog, mist and dew. This is also known as acid precipitation. Ash, soot, and gases are types of dry deposition. Many environmental effects have been attributed to acid rain. Such effects are damage to lakes, streams, groundwater, forests, agriculture, statues, buildings and human health. Acid rain has become an important issue around the world because once pollution is out in the air, it can cast out and received over long ranges. This means that acid rain from one country can cause harm to another country (50). Patel, who wrote the article "Acid Rain," suggests that acid rain is rain that has a low pH. Normally, rain is acidic because of the carbon dioxide that animals exhale. Rain becomes acidic from gases that disintegrate into the rain water. These gases out in the atmosphere give rain a pH of or around 5.0. "Before the Industrial Revolution the pH of rain was generally between 5 and 6, so the term acid rain is now
supply for higher fauna. For example, a decline in benthos (bottom-dwelling Middleton, N, Atlas of Environmental Issues New York: llex 1989, 50-51. Middleton states that acid rain affects cities. It can damage vegetation, can speed up the disintegration of building stone, and can cause damage to a person's health. The Internet article "Acid Rain and Deposition" by Gow and Pidwimy reports that "emissions of sulfur dioxide are responsible for 60-70 % of the acid deposition that occurs globally." People have put more than 90 percent of sulfur in the air by using aerosols and burning fossil fuels. Coal contains 2-3 percent sulfur. When coal burning occurs sulfur dioxide is emitted in the air. Inhaling sulfur dioxide and very small particles can increase the frequency of breathing diseases and increase the number of attacks on people with asthma as well (50). To obtain zinc, nickel and copper, one must smelt metal sulfide ores. When volcanoes erupt it can add a lot of sulfur to the air in that area. When sulfur is out in the air, it can be "deposited on the earth's surface in the form of dry deposition"("Acid Rain and Deposition" par 4). Patel, "Acid Rain," Internet article from the University of Texas organisms) can lead to a decline in the number of species of flies, mosquitoes, Patel indicates that acid rain can damage certain man-made objects. There are many man-made materials on earth. Limestone and marble being two that are damaged often. Acid dissolves in the stone and "the solution evaporates." Crystals are then formed in the stone and they begin to expand and break the stone up into pieces. Thus, the monument falls to the ground ("Acid Rain" Effects: Monuments par 1). Environmental Protection Agency, "Effects of Acid Rain on People,"
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Approximate Word count = 1457
Approximate Pages = 6 (250 words per page double spaced)
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