Evaluation of the Urban Air Quality in Brazilian Midwest Region

Josmar Davilson Pagliuso; Edmilson de Souza
Air pollution has become an important issue in world. In Brazil, the recent development economic process allowed to the other regions of the country pass a diversification in the business matrix. The present study addresses the air quality in an urban area of Midwest Brazil, which proposes to initially produce a body of information related to air quality that until now is new to a region that suffers an accelerated industrial process. Tres Lagoas (47'S 20th, 51st 42'W) in eastern Mato Grosso do Sul (MS), represents the second largest GDP industrial of the state, and grows at an annual rate greater than the growth of Brazil, similar to the Asian countries. To understand the relationship between industrialization and consequences to the environment were evaluated air pollutants emissions from anthropic sources, meteorological parameters, and formation of secondary pollutants. Emissions of carbon monoxide are about 2,500 ton/year, and the local fleet of vehicles is the main source with a 97.2%. The industrial sector contributes with 46.4% of oxides of nitrogen. Concerning to the pollutants gases monitored in atmosphere, the mean concentrations, in the analyzed period (2005 and 2006), was measured in ppbv: O3 = 25 ± 14. 4, NOx = 9.4 ± 6,6 e CO=166. 5 ± 49.8. The Ozone, during September/2005, showed strong linear correlation with temperature (0, 76) and moderate to solar radiation (0, 58). Indeed, the results proved that the air quality levels of Tres Lagoas city is in accordance with the current Country legislation.
Air Quality; Atmospheric Pollution; Emission Inventory; Ozone; Urban Developing
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