The atmospheric pollution is considered, nowadays, one of the biggest problems of
the contemporaneous society, turning into a menace to its life quality, because
generates negative impacts in the natural and anthropogenic environment. In the
range of the forms to control atmospheric pollution originated by settled sources,
come forth the emission dilution in the atmosphere due to dispersal effects, the
adoption of control equipments before the casting of gases or the relocation of the
source, cause it seems to be a suggested form during the environmental licensing
process enterprises with potential air pollution. Currently computer models of
dispersion of atmospheric pollutants are being largely used on the simulation of
concentration of pollutants, objecting to help environmental agencies in the
prognostic of air quality or to supply deficiencies of atmospheric emissions
monitoring. The present research studies the air quality e evaluates the atmospheric
pollutants dispersal over Vila do Conde and influence areas of the industrial district of
Barcarena, state of Para, with the help of the AERMOD View model, considering the
possibility of establishment of a relation between the levels of pollutants emissions in
the source, with the concentration of them in the air and identify critical points of
pollution as well. The Air Quality Index – IQA and the fragility of the population over
the affected areas by the atmospheric pollutants were also measured in the research.
The methodology used allowed to measure the mean concentration of atmospheric
pollutants during a defined time of modeling and also information about the reaching
of the pollutants plume were acquired. Information concerning the relation between
the peak and the mean values of concentration in the receptive areas provoked by
enterprises that have operational characteristics similar to the modeled are showed
too. The results show that the influence of the meteorological parameters in the
dispersion of pollutants are indispensable and determinants in the impact on the air
quality prevision and also in the land use planning of areas that have atmospheric
polluting activities.
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