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The Metropolitan Area of Mexico City extends 3,969 square kilometers and it is located 1926' north latitude and 9908' west longitude and above 2,240 meters the sea level with more than fiftheen millions inhabitants, most of them younger than 25 years old.

The atmospheric pollution in Mexico City is one of the most important cases in the world. The pollution levels are often above air quality standards and therefore, it is urgent to find out strategies to control them. The most important air pollutant are ozone, its precursors nitrogen oxides and hydrocarbons, and carbon monoxide, originated from energetic sources.

Most of energy uses in this city are related to urban transportation. A very important source of air pollution is gas exhaust from private vehicles.

This case of study will establish the relationship between the concentration of carbon monoxide in Mexico City and its emission sources, the use of energy (fuel consumption) and the dispersion phenomena. The case will analyze the projection of carbon monoxide concentration reduction by implementing some strategies such as use of better fuels, change to the use of catalytic convertors in vehicles, and better transit conditions.

Therefore, to find out a solution for Mexico City air pollution problem, it is indispensable to clearly understand the following subjects:








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