Air Pollution Essay

Pollution is the contamination of earth‘s environment with materials that interface with human health, the quality of life or the natural functioning of the ecosystem. Although some environmental pollution result of natural cause such as volcanic eruption, most are caused by human activities. Air pollution, water pollution, and soil pollution are some of its major types.

Air pollution is a worldwide problem. It is the introduction of harmful substances or products into the environment which can occur naturally or artificially. Air pollution is a dangerous threat caused by many different productions such as car exhaust, nitrogen oxides (NO, NO2, No3) and sulphur oxide (SO2)

The first major cause of air pollution in car exhaust about which lead to about 45% to 50% of the total air pollution. It is formed due to the production of unburned fuel in the form of oxides of nitrogen and hydrocarbons. These black gases produced by automobiles and industries may cause many health problems, such as asthma or in extreme cases, could eventually lead to difficulty in breathing. One of the hydrocarbons produced in carbon monoxide (CO) which is one of the most dangerous gases resulting in many health problems. It also affects children mostly by making them handicapped as it affects young people‘s brains. The second major cause of air pollution is nitrogen oxides. Nitrogen oxide is one of the harmful gases which is produced into the atmosphere due to various human activities like burning of fuel. NO is very dangerous when combined with rainwater, it forms nitrogen trioxide (NO3) which is acidic and causes a change in the soil pH.

Sulphur dioxide (SO2) also adds to air pollution. It is emitted due to the burning of sulfur-containing fuels such as coal, fossil fuels, etc. Exposure to high concentration SO2 may result in different breathing problems.

Besides these harmful gases increasing the level of carbon dioxide (CO2) is also posing a threat to life as it causes greenhouse effect which has resulted in global warming.

Finally, the causes of air pollution can be many to name, but many of them can be reduced by humans by reducing the activities which produce these harmful gases.

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