Hazardous Air Pollutants from Mobile Sources in the Metropolitan Area of Mexico City |
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| Authors: | Isaac Schifter Luis Díaz Esteban López-Salinas |
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| Institution: | 1. Mexican Institute of Petroleum, Environmental Studies Division , Mexico City , Mexico ishifter@imp.mx;3. Mexican Institute of Petroleum, Environmental Studies Division , Mexico City , Mexico |
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| Abstract: | Abstract Environmental agencies are currently in the process of implementing a new air management program, which includes the improvement of fuel quality. In this work, exhaust emissions data and estimated relative risk for various fuels testing in-use vehicles, equipped with three different exhaust emission control technologies, are presented. Aromatics, sulfur, and olefins contents; type of oxygenated compound; and Reid vapor pressure were varied. The aim also includes calculating the ozone (O3)of forming potential and a relative cancer risk of emissions from current and formulated gasoline blends in Mexico. The proposed gasoline decreases carbon monoxide, total hydrocarbons (THC), and nitrogen oxides emissions by 18 and 14%, respectively, when compared with gasoline sold in the rest of the country and within ozone nonattainment metropolitan areas in Mexico, respectively. |
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