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Pollution, Environment, Particular Mater, Multicriteria Decision, Promethee
Pollution and environmental factors are a core topic because they influence in air quality of the different areas of a city. This is why in this article we propose to apply a multicriteria decision aid method (the Promethee) to establish a ranking among twenty one districts of Madrid city. To develop this ranking we use objective and subjective criteria that contain information about pollution and environmental indicators in these districts. The results show that some districts are the worse and the best regardless the used criteria.