air pollution

Topics: Air pollution, Smog, Ozone Pages: 14 (4577 words) Published: October 30, 2013


1. INTRODUCTION

The aim of this report is to discuss about the problem of air pollution, which can bring negative effects to us, with regards to health and environment. Since there is a growing concern about the harmful effects of air pollution, investigation was made and thus this report was written.

This report which is based on the findings that were obtained from internet covered the causes and effects of air pollution only.

1.1 WHAT IS AIR POLLUTION?

Air pollution is a type of pollution which can be seen in many parts of the world. From Wikipedia, air pollution can be thought as the introduction into the atmosphere of chemicals, particulates, or biological materials that can cause discomfort, disease, or death to human, damage to other living organisms such as food crops, or damage to the natural environment or built environment. Such occurrence has been going for decades; taking for example of the December 4 Great Smog of 1952 formed over London where the effects killed a staggering 12000 people. The causes of air pollution can be categorized into two: man-made and natural, where it will be further explained in the causes’ section.

1.2 WHERE IS IT USUALLY OCCURING?

Air pollution mostly occurs in the developing countries where the use of non-renewable energies such as fossil fuels is crucial. Since the countries are developing, they couldn’t afford the idea of implanting clean not-degrading-environment energies such as nuclear energy, solar energy, hydroelectric energy and wind energy. Thus they left with resources like fossil fuels, burning coals and others which threatened our environment.

1.3 WHAT HAS BEEN DONE TO REDUCE AIR POLLUTION?

There has been a growing concern from countries all around the globe regarding with the problem of air pollution. It is so serious that they came up with an international treaty named “Kyoto Protocol” which basically a treaty that requires the industrialized countries to reduce the emission of greenhouse gases.

2. CAUSES OF AIR POLLUTION
Some of the causes that contribute to air pollution are as follow. 2.1 DEFORESTATION

It is the process of which the trees are cut down and use for manufacturers. Trees are the main component of reducing the number of harmful gases in the air, especially carbon dioxide, and convert it to oxygen. This process is called Photosynthesis. If trees were to be reduce, then the percentage of carbon dioxide will be greater than oxygen. Carbon dioxide will attacks the ozone layer. If there is too much of carbon dioxide the ozone layer can not endure thus they loose the “battle” and left a hole. With this there are more UV lights infiltrated the ozone layer. The air gets warmer and warmer and this is recognized as a threat to human health as well as to the Earth’s ecosystem.

2.2 FACTORY WASTE

In general, factories use coal and petroleum to produce electricity or for manufacturing goods. These types of factories are dominant in the developing countries which they cannot afford to replace it with a greener power supply, for example Wind Turbine for electricity. The smoke from this factories will be thrown to the air and thus to its surroundings. Coal and petroleum often contains sulfur compounds, their combustion generates sulfur dioxide and further oxidation of it with nitrogen dioxide will produce sulfuric acid. Sulfuric acid is one of the dangerous acid. It can range from 0.3 to 2.1 of the pH level.

2.3 HUMAN ACTIVITIES
Human activities are the ones that contributes more to the emission of harmful gases to the environments, especially carbon monoxide. One of it is open burning. Human’s often do open burning of their litter outside their house and thus black smog are introduce to the atmosphere. People realized that the occurrence of open burning has gone wild and the government had done several ways to reduce this from happening. Another example of human activities is the uses of cars. Cars produce...

References: John Fletcher (2011). Air Pollution . Geography.
Michelle Hibler, (2003). Health : An Ecosystem Approach. www.idrc.ca/ecohealth . Accessed 9 October 2013.
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