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建立人际资源圈Car_Polution
2013-11-13 来源: 类别: 更多范文
Car Polution
Car Pollution
Air Pollution According to the United States Environmental Protection Agency, driving a car is the single most polluting thing that most of us do. This is not a new problem. In the 1950s the Los Angeles smog made headline news. Car exhaust causes health problems. There are many solutions to the problem. Laws were enacted as long as twenty years ago to control pollution caused by cars. Since then laws have been made, such as special nozzles on gas pumps that prevent vapor from getting into the air. We also have more tests on cars to make sure cars are maintained in a way that protects our environment. In cities, laws ask that more people ride on buses, and employees that drive company cars should limit the time they drive and the number of trips that they make. Cars emit several pollutants that are toxic. This causes many problems. One problem it causes is cancer. Most cars generate hydrocarbons, nitrogen oxides, and carbon monoxide.
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