Air pollution concentrations have been rapidly increasing in the major urban areas of Brazil caused mainly by
the increasing use of vehicles. Policies to control car emissions in Brazil have relied basically on mandatory
emission standards and subsidies for specific cleaner technology resulting in substantial decrease of car emission
rates. Nevertheless, taxes on car sales, differentiated by vehicles’ size and fuel, have also influenced car
emission patterns. This paper analyses the compliance trend of the Brazilian fleet with environmental standards
between 1992 and 1997. We find that larger automobiles had the fastest compliance schedule while popular
models adjusted very slowly. Also gasoline-fuelled models had a faster adjustment pattern than ethanol cars.
Additionally, we analyse the current relationship between pollution emissions and car characteristics in order to
orient policy formulation. We find a positive relationship between emissions rates and horse power,......
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Approximate Word Count: 1853
Approximate Pages: 8 (260 words per double-spaced page) |