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Challenges arising from urban mobility are related to rapid and unplanned growth of cities, spatial distribution of activities, significant increase in car usage, deficiencies of existing public transport system, and negative impacts on social and environmental scope. One of the main results of these problems is NO 2 concentration. Therefore, the present work aims to evaluate the influence of factors (building model, land use, and traffic volume) on NO 2 concentrations. In order to do this, urban land use complexity has been expressed by entropy, the index that measures the diversity of urban land use. NO 2 concentrations were measured by a passive sampling method. As main results, it was verified that the volume of vehicular traffic coupled to high entropy are directly related to NO 2 concentrations. On the other hand, the building height is also related to NO 2 levels, but not so directly, as this factor can be suppressed by vehicular traffic or be influenced by natural phenomena that facilitate or not the dispersion of NO 2 .

Compreensão da formação de NO2 proveniente das operações de transporte urbano e suas relações com agentes causais