File Name: natural and anthropogenic sources of air pollution .zip
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Air Pollution and Human Cancer pp Cite as. A broad spectrum of potentially toxic chemicals spanning many inorganic and organic structural categories, is released into local, regional and global atmospheres from both natural as well as anthropogenic sources and from both industrialised and developing countries [1—9]. The introduction of toxicants into the atmosphere may be direct via the inadvertent or deliberate release from a particular mobile or stationary source, or indirectly as a consequence of initial discharge or disposal of chemicals to other environmental media, such as water or soil.
Box , Kuwait, Kuwait. We investigate the temporal characteristics of major air pollutants collected from 44 air quality stations over the city of Seoul, Korea, namely, nitrogen dioxide, carbon monoxide, particular matter at 10 microns, and sulfur dioxide SO 2 between and The four pollutants under study show varying temporal characteristics with different annual mean concentration patterns. The monthly mean of mentioned pollutants all show similar low concentrations during the summer season and high concentrations during the winter season. We found that pollution is strongly linked to temperature and precipitation variability, especially during the fall season. Satellite data analysis provides information on the pollutants origin whether of natural or anthropogenic type.
Most air pollution, harmful gases and particles in the air, affecting national parks is created outside park boundaries. Mobile sources account for more than half of all the air pollution in the United States and the primary mobile source of air pollution is the automobile, according to the Environmental Protection Agency. Stationary sources, like power plants, emit large amounts of pollution from a single location, these are also known as point sources of pollution. Area sources are made up of lots of smaller pollution sources that aren't a big deal by themselves but when considered as a group can be. Natural sources can sometimes be significant but do not usually create ongoing air pollution problems like the other source types can. Pollution from human-generated and natural sources is often created in one place and transported through the air. Sometimes chemical reactions in the atmosphere change pollutants before they are deposited.
Air pollution is the presence of substances in the atmosphere that are harmful to the health of humans and other living beings , or cause damage to the climate or to materials. There are different types of air pollutants, such as gases such as ammonia , carbon monoxide , sulfur dioxide , nitrous oxides , methane and chlorofluorocarbons , particulates both organic and inorganic , and biological molecules. Air pollution may cause diseases, allergies and even death to humans; it may also cause harm to other living organisms such as animals and food crops, and may damage the natural or built environment. Both human activity and natural processes can generate air pollution. Air pollution is a significant risk factor for a number of pollution-related diseases , including respiratory infections , heart disease , COPD , stroke and lung cancer. Individual reactions to air pollutants depend on the type of pollutant a person is exposed to, the degree of exposure, and the individual's health status and genetics.
The major historical air pollution episodes all occurred during stagnant inversions in regions that had significant sources of combustion-related air pollutants see Chapter 1. Sources of air pollution. Updated information on Europe's air quality and air pollutant emissions. Open burning Mobile sources Appliances that burn, for example, oil, gas, kerosene, coal, or wood need to be maintained in top working order. Eg PBN, Formaldehyde Primary pollutants be emitted into the air. These include emission heights, chemical transformations, reactions to sunlight, additional natural and hemispheric contributions and the impact of weather and topography.
The natural particle sources include volcanoes, forest fires, ocean spray, biologic sources and the anthropogenic sources of particles are transportation, fuel combustion in stationary sources, a variety of industrial processes, solid waste disposal and miscellaneous sources such as agricultural activities and fugitive.
Username Get help or learn how to sign up. Air pollution can be formed through both natural and man-made processes. Some examples of these are listed below:.
Air Quality. What one experiences today as atmosphere is a transient snapshot and result of its evolutionary history. Much of the development and present status was explained based both on scientific knowledge, and combined with established facts, even speculation.
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