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Abstract
The monitoring of air quality has become something essential in large urban centers in the world, because emissions from both stationary sources and mobile sources. In the case of Rio de Janeiro, the biggest problem is associated with mobile sources, due to fuel composition, engine technologies and the age of the current fleet in the city. One of the great difficulties is related to sources of inventory data not updated that would contribute to better evaluations. This work sought by means of statistical analysis and the average concentrations of particulate matter (PM 10 ) and sulfur dioxide (SO 2 ) recorded in the Centro, Sao Cristovao and Tijuca in the period between 2000-2006 and 2010-2014 understand the quality these data, and so correlate these facts with updates on technology of fuel and vehicles circulating in the city. The results show that there has been over time a certain decrease in concentrations of the pollutants studied, when compared with current resolution in the country. However we highlight the sulfur dioxide which showed a reduction of about 40% on their annual average, possibly by the improvements implemented in fuels.
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