... almost escape our notice. Pollution sources tend to be concentrated, however, especially in cities. In the weather phenomenon known as thermal inversion, a layer of cooler air is trapped near the ground by a layer of warmer air above. When this occurs, normal air mixing almost ceases and pollutants are trapped in the lower layer. Local topography, or the shape of the land, ... can worsen this effect, an area ringed by mountains, for example, can become a pollution trap. Smog is intense local pollution usually trapped by a thermal inversion. Before ... cooler air is trapped near the gro...

• Word Count: 6167
• Approx Pages: 25
• Has Bibliography
• Grade Level: Undergraduate

... air. However, regulation has the potential of being a hindrance to economic growth. Because of this, the country has looked to creative market instruments to deal with pollution problems. Air pollution will be lowered in the Houston Galveston region if businesses exercise corporate responsibility, the City of Houston continues in its leadership, and technology is continually developed. Corporate ... specific technologies through the EPA, they will provide emissions benefits for comparable fleets throughout the region and the country. Technology Technology is the ultimate driving force of...

• Word Count: 9632
• Approx Pages: 39
• Has Bibliography
• Grade Level: Undergraduate

... words, the pollutants can reach the ground in a wet or dry form. Both forms can harm soil, lakes, plants, buildings and people. Acidic pollutants released by one country can travel hundreds, or even thousands, of kilometres before being deposited. Acid rain is a real problem in Scandinavian countries. A large fraction of it is due to pollution released by other European countries. There ... , emissions from power stations, motor vehicles, and industry do contribute to acid rain. In some parts of Australia, these activities are making rain-water slightly more acidic. Reducing air pollutio...

• Word Count: 2950
• Approx Pages: 12