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Department of Civil Engineering
Introduction to Environmental Engineering
(Case study 2)
Submitted by: Said Salim Al Ghusaini.
Submitted to: Dr. Mohammed Abushammala
Reasons for selecting the topic: Air is vital for human beings. Choosing air pollution as the
subject of study is thereby essential. All day, human beings are forced to inhale the polluted air
which is harmful to their health. The pollutants which are emitted into the atmosphere enter the
human body and may lead to the damage of the body and cause illnesses. Once taken in, these
contaminants do not come out easily (Abiat, 2017).
Some of the objectives of the study include identifying the sources of air pollution, the nature of
the pollutants, the implications of the air pollutants on human health. Nevertheless, the research
will find out more about the dangers of air pollution to the environment (Trotman, 1998).
There are several natural gases in the atmosphere which occupy different percentage proportions
of air. These gases exist friendly with the living organisms; they cause no harm. These gases
include, Carbon dioxide (0.03%), Nitrogen (78.07%, which is the largest percentage), Oxygen
(20.95%), Neon by 0.0018%, Hydrogen (0.0005%), Helium (0.0005%), Argon (0.93%), Krypton
(0.0001%), and ozone which consists 0.00002% of the air mass. Increasing or reducing any one
component of air leads to the change in the air composition which in turn leads to unavoidable
pollution (Barod, 2006).
Reduction of air pollution is something which should involve the entire society. Through the
employment of effective strategies to stop and prevent pollution, the atmosphere can be made
clean again. The research concludes that air pollution can be prevented and treated to make the
environment a good place for living organisms. People, animals, and vegetation need air to
survive. Human beings need oxygen for survival and plants need carbon dioxide for
photosynthesis (Barod, 2006).
Considerable measures have been taken over years to help improve the efficiency of oil
consumption in cars as well as reduce the amount of pollution caused by the fuels. Several
strategies have been employed to remove pollutants from the car fuels to reduce air pollution.
When combustion of oil takes place in the engine, gases are emitted to the surrounding.
Currently, most cars consume small amounts of fuel hence minimizing pollution. Nevertheless,
unleaded fuel is in use. Fuels with lead components contribute a lot to air pollution (Barod,
All living organisms need fresh air to survive. That includes human beings, animals, and plants.
If they are denied fresh air (that is, provided with air which is full of pollutants), they will die
(Saleh, 2003). Human beings need oxygen for survival, and so are animals. For plants, Carbon
dioxide is crucial for the manufacture of food during photosynthesis.
A healthy human being can live without food for even seven days. But what about air? How long
can he live without air? He cannot last several minutes. Thus, air is vital for life. In a normal
climate, a human being’s lungs need approximately fifteen kilograms (15kgs) of air within a day
Air is crucial on earth to sustain flora and fauna. Air pollution is increasing thus causing more
harm to the health of living organisms. When human beings inhale polluted air, there are high
chances of getting diseases. This weakens their immune systems in the body. Industries do
contribute much to pollution. However, pollution can occur naturally at some point (Saleh,
2003). Industrial pollution takes a higher percentage. Motor vehicles, which are products of these
industries have taken a large part in destroying the troposphere components.
Natural processes such as volcanic eruptions are the primary causes of natural pollution. During
volcanic eruptions, dust, lava, among other materials are emitted to the nearby regions. These
materials may cover large land surfaces and water bodies. In the process, they lead to the
destruction of crops, deaths of animals and people, among several others. During such
explosions, several poisonous gases are emitted to the atmosphere (Saleh, 2003). Such gases