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Types of pultiom


Tatiana rodrigues

on 29 May 2011

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Transcript of Types of pultiom

Types of pollution Air Pollution Water Pollution Land Pollution Noise Pollution Light Pollution The air pollution is caused by a mixture of chemicals into the air or resulting from chemical reactions that change which would be the natural constitution of the atmosphere. Apart from industry, road transport is a major source of pollutants due to emissions of exhaust gases, but also as a result of evaporation of fuels. They are the largest emitters of NOx (oxides of nitrogen) and CO (carbon monoxide), major emitters of CO2 (carbon dioxide) and VOC (Volatile Organic Compounds), besides being responsible for the emission of specific pollutants such as lead (Pb). Air pollution can cause a range of problems in human health. The data presented by the European Commission in June 2003, "European Strategy for Environment and Health are worrying: - In industrialized countries 20% of diseases recorded are attributable to environmental factors, registering a significant increase of cases of asthma and allergies; - Europeans spend 85% to 90% of their time indoors. The levels of indoor air pollution is two times higher than outdoors, favoring the existence of allergies, migraines, asthma and cancer; - Asthma and respiratory diseases are the cause of the increased number of hospitalizations of children, and that 1 in 7 suffers from asthma. Children are also more exposed to the gas exhaust of cars. Water pollution is the contamination of water bodies (e.g. lakes, rivers, oceans and groundwater). Water pollution occurs when pollutants are discharged directly or indirectly into water bodies without adequate treatment to remove harmful compounds.
Water pollution affects plants and organisms living in these bodies of water; and, in almost all cases the effect is damaging not only to individual species and populations, but also to the natural biological communities. Land pollution is the degradation of Earth's land surfaces often caused by human activities and their misuse of land resources. It occurs when waste is not disposed properly. Health hazard disposal of urban and industrial wastes, exploitation of minerals, and improper use of soil by inadequate agricultural practices are a few factors. Urbanization and industrialization are major causes of land pollution. The Industrial Revolution set a series of events into motion which destroyed natural habitats and polluted the environment, causing diseases in both humans and other species of animals. Noise pollution is excessive, displeasing human, animal or machine-created environmental noise that disrupts the activity or balance of human or animal life. The word noise comes from the Latin word nauseas, meaning seasickness.
The source of most outdoor noise worldwide is mainly construction and transportation systems, including motor vehicle noise, aircraft noise and rail noise. Poor urban planning may give rise to noise pollution, since side-by-side industrial and residential buildings can result in noise pollution in the residential area.
Indoor and outdoor noise pollution sources include car alarms, emergency service sirens, mechanical equipment, fireworks, compressed air horns, groundskeeping equipment, barking dogs, appliances, lighting hum, audio entertainment systems, electric megaphones and loud people. A comparison of the view of the night sky from a small rural town (top) and a metropolitan area (bottom). Light pollution vastly reduces the visibility of stars.
Light pollution, also known as photopollution or luminous pollution, is excessive or obtrusive artificial light. Light pollution is the kind of pollution caused by excessive light or obstrusive created by humans. Light pollution affects ecosystems, cause negative health effects, lights up the atmosphere of the cities, reducing visibility of the stars and interferes with astronomical observation. This type of pollution is considered a side effect of industrialization. The source of pollution in this case consists of internal and external lighting homes and other sites, advertisements, street lighting, signage and air each cruise, as well as any other artificial source of light. Light pollution is most severe in densely populated and heavily industrialized North America, Europe and Japan With advances in private space travel, the prospect of appearing on billboards near future has raised the concern that such objects may become a new source of light pollution. The U.S. aviation agency, the Federal Aviation Administration gave permission in May 2005 to create a law banning ads "obtrusive" in earth orbit.
The term is often confused with visual pollution THE END
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