ESTIMACIóN DE LAS EMISIONES DE CONTAMINANTES ATMOSFéRICOS PROVENIENTES DE FUENTES MóVILES EN EL áREA URBANA DE ENVIGADO, COLOMBIA

this research presents the results of estimates of air pollutants (co, nox, so2, pm10 and voc) from mobile sources in the urban area of the municipality of envigado for 2010. we use information on vehicles registered in the municipality, capacity, vehicular distribution and activity for categories. the emissions were estimated by the factors in the ive method with best fit to the mobility patterns, vehicular fleet characteristics and type of combustibles in the area under study. as a result, it was possible to estimate hourly and daily emissions of the pollutants studied, and with the help of a gis system, were plotted. from the results, we found that the largest releases occurred on roads with higher vehicle traffic (carrera 50 or avenue regional, carrera 48 or avenue las vegas, carrera 43a or avenue el poblado and road parallel to the stream la ayurá), where the largest contribution does carbon monoxide (co) with 18,4 t d-1 (71,3%), time of day which showed the highest emission of this pollutant is at 12:00 hours with 1,4 t h-1 (7,4%) and the vehicle category that most contributes to environmental levels are automobile with 8 t d-1 (32,7%).