Environmental Risks of Man-Made Air Pollution in Grand Algiers
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Abstract
The rapid economic growth and development in Algeria especially in Algiers which is the main metropolis in the country take place last decades. Uncontrolled urbanization and industrialization are contributing to deteriorate the environment. All these activities lead to an increase in the number of vehicles in the Grand Algiers, which adversely affect the air quality. Air quality in urban areas constitutes a major concern, taking in consideration the impact of pollution on environment and inhabitant’s health. The main important urban air contaminants in terms of emissions and effect on environment and human health which could be taken into account are: carbon monoxide, nitrogen dioxide and particulate matter PM. The aim of our research is to assess the risks of man-made emissions into the atmosphere of Grand Algiers as a result of impact from stationary and mobile sources of pollution. GIS maps of air pollution with PM 1.0; 2.5; 10 microns in Grand Algiers were carried out. Based on the obtained results, it was revealed a tendency of increased content with nitrogen dioxide in the atmosphere of Algiers which demonstrates the existence of the risk of falling out of nitric acid rain not only within the city limits but also in the scale of grand Algiers. According to the GIS mapping revealed features of the propagation of man-made dust particles size 1.0; 2.5 and 10 microns. Further investigations should be focused on the establishment of a sufficient number of monitoring stations and planning ways to reduce the negative impact on the environment.
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