Simplified Modeling of Tropospheric Ozone Formation Considering Alternative Fuels Using
Brazilian cities have been constantly exposed to air quality episodes of high ozone concentrations (O3 ). Known for not be emitted directly into the environment, O3 is a result of several chemical reactions of other pollutants emitted to atmosphere. The growth of vehicle fleet and government in...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Universidade Federal do Rio de Janeiro
2014-07-01
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| Series: | Anuário do Instituto de Geociências |
| Subjects: | |
| Online Access: | http://www.anuario.igeo.ufrj.br/2014_2/2014_2_151_160.pdf |
| Summary: | Brazilian cities have been constantly exposed to air quality episodes of high ozone concentrations (O3
). Known
for not be emitted directly into the environment, O3
is a result of several chemical reactions of other pollutants emitted to
atmosphere. The growth of vehicle fleet and government incentives for using alternative fuels like ethanol and Compressed
Natural Gas (CNG) are changing the Brazilian Metropolitan Areas in terms of acetaldehyde and formaldehyde emissions,
Volatile Organic Compounds (VOC's) present in the atmosphere and known to act on the kinetics of ozone. Driven by
high concentrations of tropospheric ozone in urban/industry centers and its implications for environment and population
health, the target of this work is understand the kinetics of ozone formation through the creation of a mathematical model
in FORTRAN 90, describing a system of coupled ordinary differential equations able to represent a simplified mechanism
of photochemical reactions in the Brazilian Metropolitan Area. Evaluating the concentration results of each pollutant were
possible to observe the precursor’s influence on tropospheric ozone formation, which seasons were more conducive to this
one and which are the influences of weather conditions on formation of photochemical smog. |
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| ISSN: | 0101-9759 1982-3908 |