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建立人际资源圈Causes_Of_Air_Pollution
2013-11-13 来源: 类别: 更多范文
Causes Of Air Pollution
What causes air pollution' Air pollution occurs when wastes dirts make the air dirty. People produce most of the waste that cause air pollution. Such waste can be in the form of gases or be particulates (particles of solid or liquid manner). These substance results chiefly from burning fuel to power motor vehicles and to heat buildings. industrial processes and the burning of garbage also contribute to air pollution. Natural pollutants include pollen, soil particulates, dust, and naturally occuring gases. Also more causes of air pollution are forms of transportation such as automobiles, airplanes, ships, and trains.
The primary air pollutants found in most urban areas are carbon monoxide, nitrogen oxides, sulfur oxides, hydrocarbons, lead, and particulate matter (both solid and liquid). These pollutants are dispersed throughout the world's atmosphere in concentrations high enough to gradually cause serious health problems.
Carbon Monoxide
The light-headed or nauseous feeling one may get when in an enclosed parking garage or a tunnel, may be the effects of carbon monoxide (CO). This odorless, colorless, but poisonous gas is produced by the incomplete burning of fossil fuels, like gasoline or diesel fuel. Carbon Monoxide comes from cars, trucks, gas furnaces and stoves, and some industrial processes.
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