Modelagem matemática da dispersão de poluentes atmosféricos como etapa de pré-seleção de locais para instalação de estações de monitoramento da qualidade do ar em Paranaguá - PR

Abstract

This study aimed to suggest locations for the monitoring of air quality in the city of Paranagua. For this, mathematical modeling of air pollutants dispersion was used, associated with the collection of information on population density and distribution of urban facilities in the city's neighborhoods. The concentration of different air pollutants (CO, NOX, SO2, PTS e HCT) on space and time were simulated using the modeling software AERMOD, considering vehicular, industrial and the Port of Paranagua emission. The meteorological data used in the simulations consisted of an hourly series of three years. The hourly maximum concentration to CO, NOX, SO2, PTS e HCT were 5572 μg m-3, 5741 μg m-3, 1539 μg m-3, 3368 μg m-3 e 247 μg m-3, respectively. The average concentration during the period considered to CO, NOX, SO2, PTS e HCT were 340 μg m-3, 343 μg m-3, 94 μg m-3, 116 μg m-3 e 38,6 μg m-3, respectively. For the installation of the air quality monitoring stations, the following neighborhoods were suggested: Alboit for industrial station, because it belongs to the Zone of Interest Port, which has potentially polluting activities; Coast for residential station due to its relative proximity to the port area; Vila Horizonte to serve station, to be located between high-traffic roads; Parque Sao Jorge to background station, to be far from significant emission sources and Port neighborhoods of Prades and Bockmann to commercial station because they are neighborhoods with commercial features and centrality, in which it is supposed be intense circulation of pedestrians.