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Dispersion of criteria pollutants emitted by mobile sources on three main roads in an intermediate city of Colombia
Dispersion de contaminantes criterios emitidos por fuentes moviles en tres vias principales de una ciudad intermedia de Colombia
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Dispersion of criteria pollutants emitted by mobile sources on three main roads in an intermediate city of Colombia. (2023). Revista EIA, 20(40), 4014 pp. 1-24. https://doi.org/10.24050/reia.v20i40.1696
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The main objective in this research is to determine the behavior of the dispersion of the
criteria air pollutants in the city of Valledupar; In addition, establish the areas of greatest
impact due to emissions from mobile sources from three of its main roads. To carry out
this investigation, an analysis of the meteorology of the city of Valledupar was carried out
for the days of the modeling, in which the variables of wind direction, wind speed, ambient
temperature and relative humidity were taken into account, this Meteorological information
was obtained from the Corpocesar and IDEAM meteorological stations, the WRF model
was also simulated for October 14, 15 and 16, 2021 and January 13, 14 and 15, 2022 with
a resolution of 3 kilometers. The emissions data from mobile sources are the product of
the IVE model, finally, the modeling of the dispersion of the criteria pollutants was carried
out with the HYSPLIT model, for which the daily meteorological data, product of the WRF
model simulations, were used as input data; In addition, the emission rate for each pollutant
resulting from the IVE model was established. It was observed that the behavior of the
dispersion concentration of pollutants is more frequent towards the east of the city on
the study days of October and on the study days of January the dispersion plumes were
directed mainly towards the west area from the city, it was presented that the pollutant that
obtained the maximum concentration in 10 hours of emission for each day was CO with a
concentration of 980 ug/m3
in the month of October, likewise, in the month of January it was
CO with a concentration of 790 ug/m3.
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