Desenvolvimento de inventário de emissões atmosféricas associado ao beneficiamento de grãos no estado do Paraná

Abstract

The grain processing industries are emission sources of primary atmospheric pollutants that are still few studied in Brazil. These pollutants are strongly related to poor air quality and respiratory diseases. The objective of this work is to build an atmospheric emission inventory from activities associated with grain processing in the State of Paraná to identify the main stages and processes that generate pollutants, assess the relevance of this sector for atmospheric emissions, and recognize the regions of the State that most contribute to these emissions. For this construction and evaluation were used two different methodologies: i) calculation of emissions through estimates, identification of the activity, and use of the emission factor from the AP-42 manual; ii) obtaining an official database from the Brazilian Institute of Environment and Renewable Natural Resources (IBAMA), containing the location of industries and their respective emissions for the construction of maps containing the spatial distribution of emissions. It was also possible to compare the methodologies with the aid of the existing database. The process considered most relevant to atmospheric pollution in grain processing is drying. Through graphs and tables, it was possible to identify the central-south and central-west regions as those that most emit pollutants into the atmosphere due to this activity. In addition, through the construction of maps and comparison with the literature, it was possible to conclude that there is a significant contribution to atmospheric emissions by the sector in question.