Recently, the vehicle emissions concern has been increasing. In Brazil there are several regulatory landmarks to control these emissions. Pollutant emission estimation is not only necessary for environmental management but also to meet specific legislation. A workgroup under the guidance of the Brazilian Ministry of the Environment has undertaken a wide effort to estimate emissions from vehicles; as a result, in 2011 the First National Atmospheric Emissions from Road Vehicles Inventory was published. In this inventory, emission factors are presented for different types of fuels and vehicle categories. Based on these factors and aiming at facilitating road vehicle pollutant emission calculation, we have developed a simplified methodology and a software (BRevê.py) to calculate Brazilian vehicle fleet emissions. The resulting software is a free and open-source software, available by email request. In order to demonstrate how easy it is to use the software, a simplified example and the corresponding results are presented in this paper.
vehicle emission; emission factors; environmental software
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