EVALUACIÓN DE LAS EMISIONES DE CONTAMINANTES CRITERIO Y DE GASES DE EFECTO INVERNADERO, GENERADAS POR LA ACTIVIDAD DE LA CONSTRUCCIÓN DE VIALIDADES EN LA ZONA METROPOLITANA DEL VALLE DE MÉXICO.

Abstract

The Metropolitan Area of Mexican Valley (MVMA) has a series of climatic and physiographic characteristics that contribute adversely to the air pollution in recent years, ozone and particulate matter are pollutants that several times a year beyond its values standard. The environmental authorities as well as monitoring the concentrations of air pollutants, develop Emission Inventories, in order to know the source of air pollution and implement mitigation measures. Currently not evaluated any emissions from the construction in these documents. While construction is considered as a major employment generating activities is also important consumer of natural resources and therefore a significant source of pollutants. This paper presents three scenarios for assessing emissions from the construction of roads and determine which is a key category that should be included in Emissions Inventories, primarily by the emission of particulates and volatile organic compounds. The first stage was structured with emissions from real data of road-Río de los Remedios and fifteen more roads, calculated with a model for estimating emissions. The second stage includes the Rio de los Remedios emissions, six roads using emission factors and nine roads calculated using a model. Finally, the third stage, are Río de los Remedios emissions and the remaining fifteen roads, estimated using emission factors. It paper raises some methodologies for estimating emissions per step or construction activity, which can be taken by the authorities in environmental matters at any level of government. In general, methodologies consider the following issues: loading and unloading, fugitive by wind erosion, paved and unpaved roads, demolition, construction equipment, use of paints, asphalt and fuel.