Concept Definition 20

POLLUTION Pollution is any, substance or form of energy that can cause some damage or imbalance, be reversible or not, in the initial medium. For there to pollution, the pollutant must be in relative amounts sufficient to cause this imbalance. The relative amount can be expressed as the mass of the substance introduced in relation to the mass or volume of the receiving environment of the same. This ratio is called concentration. The pollutants are related to the growth of populations and if these increase, the pollution they cause is greater. The pollutants for their consistencies, they fall in solids, liquids and gases. The agents are composed of solid waste in its various presentations. They cause pollution of soil, air and water.Because microorganisms in the soil and pesticides, the air because it produces bad odors and toxic gases and because the dirty water and not be used. The liquid agents are comprised of sewage, industrial waste, spills of petroleum fuels which damage the water mainly from rivers, lakes, seas and oceans, thus causing the deaths of several species. The gaseous agents are formed by combustion of fuel (nitrogen oxide and sulfur) and by burning fuels such as gasoline (releasing carbon monoxide), garbage and waste plants and animals. All the pollutants come from a particular source and can cause respiratory and digestive diseases. It is necessary for man to become aware of the problem. It’s called air pollution or air pollution to the presence in the environment of any agent (physical, chemical or biological) or a combination of several agents in places such forms and concentrations that are or may be injurious to health, safety or for the welfare of the population, or may be harmful to plant or animal life, or prevent the normal use of the property and places of recreation and enjoyment of them. Environmental pollution is also incorporated into the receiving bodies of solid, liquid or gaseous, or mixtures thereof, provided that adversely alter the natural conditions thereof, or which may affect health, hygiene or welfare of the public. Effects Experts in environmental health and cardiologists at the University of Southern California, just demonstrated for the first time what until now was just a suspicion of atmospheric pollution in large cities affect cardiovascular health.Research has found a direct relationship between increased air pollutant particles from the city and the wall thickening of the arteries (the “intimate media”), which is a proven indicator of atherosclerosis. The persistent effect of polluting the atmosphere, in a silent process of years, eventually leading to the development of acute cardiovascular conditions such as heart attacks. By inspiring environmental particles with a diameter smaller than 2.5 micrometers, enter the small airways and then irritate the artery walls. The researchers found that for every increase of 10 micrograms per cubic meter of these particles, disruption of intimal medial wall of the arteries increased by 5.9 . Smoke and snuff which generally comes from the exhaust of the car produces the same amount of these particles. Stringent clean air standards would contribute to better health with large-scale effects. One more of the effects is the weakening of the ozone layer that protects living things from ultraviolet radiation from the sun, due to stratospheric ozone destruction by chlorine and bromine from pollution.