|
|

This is only a preview of the paper Click here to register and get the full text. Existing members click here to login
|
|
|
Introduction
Air pollution is nothing new. ... One of the first air-pollution regulations dates back to the fourteenth century, when King Edward I banned the burning of sea coal in lime kilns. ... air-pollution regulations have their roots in British Common Law. But regardless of those efforts, air pollution continues to be a serious local and world-wide problem. Pollution is the pressure within the air of one or more substances that are harmful to human health, welfare, animal or plant life, or property. In the past with air pollution we included mainly the outdoor pollutants, although in recent years this is not the case. ...
Particulates
Although air pollution might be thought of as unwanted gases in the atmosphere, two of five primary pollutants are really solid substances called particulates. ... Thick ,black smoke coming out of a stack is that what we think causes the pollution, but what really creates the damage is what we cant see. ... Overall, coal and oil are the major sources for sulfur oxide pollution. The vast majority of this type of air pollution comes from generation of heat and electricity. ...
Control of Air Pollution
The Regulations
The early air pollution laws were passed within small communities and concerned the color and density of the smoke that comes out from the stacks. ... No national air pollution legislation appeared until the 50s. The first federal legislation appeared in 1955 when the Air Pollution Control Act was passed. In 1965 the Motor Vehicle Air Pollution Act was passed, establishing national automobile emission regulations for the first time. Then the Air Quality Act of 1967 was passed, providing funds for additional federal research and designating air quality control regions to help establish air pollution criteria. ...
Change of Fuels
The most direct method of pollution control involves changing the fuel. ... Although we know that changing the fuel is not going to stop air pollution, but only reduce it, we are trying to find substitutes which will result to higher efficiency with lower emissions. ... You may reduce the carbon-monoxide pollution in having a transformation to carbon dioxide, but on the other hand, you re going to end up with more nitrogen oxides. ...
Conclusion
Once exposure levels have been set, steps can be undertaken to reduce exposure to air pollution. These can be accomplished by regulation of man-made pollution through legislation. Many countries have set controls on pollution emissions for transportation vehicles and industry. ... A company that has to install million dollar electrostatic precipitators may have a serious economic problem with pollution control But in general, the overall costs of not controlling air pollution are far greater that the collective costs of pollution control. ...
Recommendation
Only through the efforts of scientists, business leaders, legislators, and individuals can we reduce the amount of air pollution on the planet.
Approximate Word count = 2290 Approximate Pages = 9.2 (250 words per page double spaced)
|
|
|
|
|
|