Industries are the main cause of plan anthropogenic air pollution. The global industrial development gave rise to a large number of economic sectors, each generating air pollution to some degree. So these economic sectors act as pollution causes in their own way. Some major sources and types of major air pollutants produced by each of them are shown in Table 3: Air pollutants are basically the waste products generated by the above mentioned economic sectors. They come in the form of gases and finely divided solid and liquid particles suspended in the air (aerosols). Air pollutants can also be of primary or secondary nature. Primary pollutants are the ones that are emitted directly into the atmosphere by the sources (e.g., power plants).
This is a factor that building construction sites also take into account, since the presence of methane in the airways of the buildings can lead to dire consequence. (v) Radon Expulsion: Nuclear elements like uranium are found inside the earth surface, and when these elements decompose they release a noble gas known as Radon into the atmosphere. This gas is highly radioactive in nature, and it can cause some serious health damage to people who breathe the air that contain. Interestingly, after smoking, radon intake is the second largest contributing factor to lung cancer in human beings, so all possible measures to prevent the spread of Radon must be taken. Other factors like the dispersal of large amount of pollen from flowers and the emission of vocs (Voltage Organic Compounds) which get oxidized and transformed into aerosols from plants and trees also lead to air pollution which is not caused by man-made sources. There are plenty of natural causes of air pollution that are out of our control as well. Anthropogenic sources of Air Pollution : During the last couple of centuries we have witnessed an emergence of several fundamental trends that became the major forces behind the dramatic levels of air pollution worldwide.
Pollution, reading Exercise englishClub
Forest fires also lead to unpredictable weather changes and cyclones, and all this leads to a severe loss of life in the long run. (ii) Volcanic Eruptions : a volcano is an open fissure on the surface of the earth through which lava and volcanic ash escapes on a regular basis. There are several active volcanoes that are found around the planet today, and along with the air pollution that they cause, they also lead to a serious danger to life forms. Carbon dioxide and sulpur dioxide are the primary sea gases that are released during volcanic eruptions, and these lead to dire consequences to the earths atmosphere and to all the life forms that reside there. Other gases like hydrogen sulphide, hydrogen chloride, hydrogen fluoride, carbon monoxide, halocarbons and some metal chlorides are also released into the atmosphere in smaller traces. The materials released also lead to acid rain in many parts, and the volcanic ash that follows disrupts air travel dissertation and many other activities.
The recent eruptions of Eyjafjallajokull over Iceland in 2010 also led to several restrictions in air travel over Europe. (iii) Wind Erosion : Though dust particles and dirt do not cause toxic effects on the human body, they are capable of inducing many respiratory diseases in human beings. These dust particles move around in the atmosphere due to strong winds, especially in geographical areas where wind erosion is a common occurrence. This factor is not a very major contributor towards air pollution, but it does play a small role and is one of the most underestimated types of air pollution. (iv) Methane Expulsion : Farm animals like cattle release methane into the atmosphere during the end stages of their digestive cycles. Methane gas affects the ozone layer in the atmosphere since it is a very potent greenhouse gas, and it is also highly inflammable when it combines with other elements in the air. Moreover, it can lead to severe asphyxiation if someone is trapped in a closed room with the presence of methane gas in the air.
The Arctic haze is perhaps one of the best examples of that. It is a visible reddish brown haze, which appears above the Arctic during winter months. The Arctic haze is caused by air pollution from coal-burning which arrives mainly from Asia. Causes of Air Pollution: Natural causes of Air Pollution: Natural causes of pollution may include forest fires and volcanic eruptions as well as vegetation, oceans and decay processes in soil. Fossil fuels (oil, gas coal) are the largest anthropogenic sources of air pollution-they are widely used in industry and everyday life.
But they are not the only ones. The biggest source of using fossil fuels is running of power plants and automobiles that combust fuel. These two sources are responsible for about 90 of all air pollution. Some cities suffer severally because of heavy industrial use of chemicals that cause air pollution. Places like mexico city and sao paulo have some of the most deadly pollution levels in the world. (i) Forest Fires : A fire that occurs in a highly infested area through natural causes is known as a bush fire, and this is a very potent natural source of air pollution. There are several different causes that lead to forest fires, and the fact is that they are caused naturally without any human intervention. These fires spread very rapidly, and release pollutants like smoke and carbon monoxide into the atmosphere. Though carbon monoxide is present in living bodies in small amounts, it can be toxic in nature when sniffed in larger amounts.
368 Words Essay on Global Warming for kids
As one might expect, human beings have been producing increasing amounts of pollutants as time has progressed, and they now account for the dream majority of pollutants released into the air. Pollution had make been known to exist centuries beach, but it became an issue of serious concern only in the last 200 years mostly due to the industrial revolution. Advertisements: Atmospheric pollution originates from all the parts of the world and travels all around. It knows no borders. The effects of air pollution are diverse and numerous. Air pollution can have serious consequences for the health of human beings, and also severely affects natural ecosystems. This trans-boundary nature of air pollution makes it even more dangerous and difficult to control. Some areas now suffer more than others from air pollution. Cities with large number of automobiles or those that use great quantities of coal often suffer more severely from problems of air pollution.
Every day, the average person inhales about 20,000 liters of air. Every time we breath in, we risk inhaling dangerous chemicals that have found their way into the air. Advertisements: Air pollution includes all contaminants found in the atmosphere. These dangerous substances can be either einstein in the form of gases or particles. Air pollution can be found both outdoors and indoors. Pollutants can be trapped inside buildings, causing indoor pollution that lasts long. Sources of Air Pollution: The sources of air pollution are both natural and human based.
sulphur dioxide (SO2 hydrogen sulphide (H2S carbon mono-oxide (co hydrogen (H2 argon ( 1 ppm) and variable amounts of dust particles. The composition of pure and respiratory air is given in Tables 1 and 2: so it is clear from the tables that chemical substances occur around. They are fundamental parts of air, earth and oceans. The author is of the view that under very specific conditions, the combination of these chemical substances gave birth to creatures (male and female). The first to take birth was perhaps female ant, followed by birds and animals. Later on special species of animals changed into men and women. Advertisements: Air pollution is a release into the atmosphere of any substances,. G., chemicals or airborne particles, which are harmful both to the human and animal health as well as the health of the wider environment. Atmospheric pollution occurs because the release of air pollutants takes place at a rate much faster than they can be accommodated by the environment or removed from the atmosphere without causing serious harm.
Project Report on Major Air Pollutants that Affects Environment. Project Report on the Prevention of Air Pollution. Project Report on the Objectives of Air Pollution Control devices. Project Report on the case Studies of Air Pollution. Project Report #. Meaning of Air Pollution: The main components of the atmosphere are — oxygen (O2) to breath, carbon dioxide (CO2) for photosynthesis, nitrogen (N2) for forming products as dream fertilizers for plants and making the air inert and ozone (O3)-layer against sun rays. Any imbalance in quality of air so as to cause adverse effects on the living organisms is called air pollution.
Dow Jones Industrial average" and summary - msn money
An exclusive project report on Air Pollution. This project report will help you to learn about:. Meaning of Air Pollution. Sources of Air Pollution. Major Air Pollutants that Affects Environment. Objectives of Air Pollution Control devices. Contents: Project Report resume on the meaning of Air Pollution. Project Report on the sources of Air Pollution. Project Report on the causes of Air Pollution.