What is Air Pollution

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What is air pollution? According to Wikipedia, Air pollution is the introduction of chemicals, particulate matter, or biological materials that cause harm or discomfort to humans or other living organisms, or damages the natural environment into the atmosphere .According to other research, the suggested Federal limit of an “average” of 50 micrograms of “particulate matter” per cubic foot of air ( in a one year period ) is considered poor air quality. The air pollution is made up of many kinds o
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  What is air pollution? According to Wikipedia, Air pollution is the introduction of  chemicals,particulate matter, orbiological materialsthat cause harm or discomfort to humans or other living organisms, or damages thenaturalenvironment into theatmosphere.According to other research, the suggestedFederal limit of an “average” of 50 micrograms of “particulate matter” per cubicfoot of air ( in a one year period ) is considered poor air quality. The air pollution ismade up of many kinds of gases, droplets and particles that reduce the quality of the air. The air pollution is the contamination of air by the discharge of harmfulsubstance.Air pollution has both acute and chronic effects on human health. Human healtheffects range from minor irritation of eyes and to the chronic diseases such as heartdisease, lung cancer and death. Air pollution has both short-term and long termeffect to human health and also to the environment. The World Health Organizationstates that 2.4 million people die each year from causes directly attributable to airpollution, with 1.5 million of these deaths attributable to indoor air pollution. A studyby theUniversity of Birminghamhas shown a strong correlation betweenpneumoniarelated deaths and air pollution from motor vehicles .Air pollution iscaused by both natural and man-made sources.The major man-made sources of the air pollution include industries, vehicles andpower generation. There are many different chemical substances that cause the airpollution. The fuel combination is the primary sources of a large numbers of healthdamaging air pollutants, including fine and irrespirable particulate matter (PM),sulfur dioxide (SO2), carbon monoxide (co) nitrogen oxides (N0x), volatile organiccompounds (VOCs), ozone (Os) and atmospheric lead (Lead). Some of thesepollutants are direct by products of fuel combination, but some are formed in the airthrough the chemical reactions with other agents in the atmosphere. All of thesechemicals have terrible effects on natural ecosystems. They can kill plants andtrees by destroying their leaves, and can kill animals, especially fish in highlypolluted rivers. The sulfur dioxide is the precursor to acid rain which is able todamage lakes, rivers, trees and give terrible damages to cultural relics. The acidrain could pollute drinking water and entering the food chain and through globalwarming and associated climate change and sea level rise. The nitrogen oxidesdeposition ozone will reduce crop production and forest growth and it is the smogprecursor. The three major causes SO2, NOx and Ozone which give harmful effectsin the natural ecosystems also have harmful effects on human health which mostlyto respiratory and cardiovascular illness. Individual reactions to air pollutantsdepend on the type of pollutant a person is exposed to, the degree of exposure, theindividual's health status and genetics.VOCS volatile organic compounds is the vehicles burning leaded gasoline cause allthe fish and animals kills, it also accumulates in human blood stream over time andcan damages human nervous system. The volatile organic compounds which comes  from vehicles and industrial processes could cause eye and skin irritation, nausea,headaches and carcinogenic. It also causes smog to environment. The smogconsists mostly of a mixture of sulfur dioxide and fog. Suspended droplets of sulfuricacid are formed from some of the sulfur dioxide, and a variety of suspended solidparticles. Photochemical smog is also appearing in regions of the tropics andsubtropics where savanna grasses are periodically burned. Smog's unpleasantproperties result from the irradiation by sunlight of hydrocarbons caused primarilyby unburned gasoline emitted by automobiles and other combustion sources. Theproducts of photochemical reactions includes organic particles, ozone, aldehydes,ketones, peroxyacetyl nitrate, organic acids, and other oxidants. Ozone is a gascreated by nitrogen dioxide or nitric oxide when exposed to sunlight. Ozone causeseye irritation, impaired lung function, and damage to trees and crops. Another formof smog is called industrial smog.Carbon dioxide (CO2) is one of the major pollutants in the atmosphere, with all thedestruction and burning of the rain forests more and more CO2 is being releasedinto the atmosphere. Increasing the amount of CO2 in the atmosphere reinforcesthis effect and is expected to result in a warming of the Earth's surface. It couldcauses headaches and fatigue especially to those who with weak cardiovascularhealth.If we ignore the situation and allow it to get worse, maybe in a few years of time thegovernment will issue an official warning urging its residents to stay indoors andavoid physical exertion. All the schools have also will be ask to cancel all its sportingactivities, all the children will most probably need to wear mask when they are atoutdoor, even worse oxygen tank will be sold as daily grocery in future. If we wantto save the world and to give a healthy and better air to our future generations, wecan help to reduce global air pollution andclimate changebydriving a car that gets at least 35 miles a gallon, walking, bicycling, and using mass transit when possible.
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