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Pollution

2013-11-13 来源: 类别: 更多范文

Pollution Factory and business owners have the ability to prevent air pollution. The government should take action, requiring equipment to cut down on hydrocarbons in the atmosphere. The little time spent regulating equipment used in factories can go a long way saving billions on health problems and other related issues. Over 150 million people in the United States live in areas where the Environmental Protection Agency consider the air to be unhealthy. Air pollution is the presence in the atmosphere of harmful gases, liquids, or solids. Smog has been a problem in coal-burning areas for several centuries. Smog finally decreased when coal combustion was replaced by oil and gas combustion. Air pollution is caused by a number of different types of pollutants. The first type, particulate matter, consists of solid and liquid aerosols suspended in the atmosphere. These arise from the burning of coal and from industrial processes. It hastens the erosion of building materials and the corrosion of metals, interferes with the human respiratory system, and brings toxic materials into the body. The small particles cause chronic bronchitis, bronchial asthma, emphysema and lung cancer. The second type is sulfur oxides, which come from the burning of coal and industrial should, pollution, air, type, hydrocarbons, health, factories, combustion, carbon, smog, monoxide, gas, equipment, come, atmosphere, action, world, within, take, respiratory, processes, problems, prevent, people, ozone, oxides, nitrogen, materials, level, industrial, ground, devices, conditions, coal, caused
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