ECOLOGY
ENVIRONMENTAL ISSUES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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cars
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baseball stadiums
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factories
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None of the above
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Detailed explanation-1: -Located in the crater of an extinct volcano, Mexico City is about 2, 240 metres above sea level. The lower atmospheric oxygen levels at this altitude cause incomplete fuel combustion in engines and higher emissions of carbon monoxide and other compounds. Intense sunlight turns these into higher than normal smog levels.
Detailed explanation-2: -Population growth, increasing motorization and industrial activities, a constrained basin and intense solar radiation combined to cause intense air-quality problems of both primary and secondary pollutants.
Detailed explanation-3: -But vehicles do generate 82% of Mexico City’s emissions of harmful NO X, the other precursor of ozone, and are responsible for around 45% of total CO 2, 99% of CO, and 23% of large particulate matter emissions citywide.
Detailed explanation-4: -There are multiple sources of air pollution in Mexico City that have combined to result in its low air quality. Main sources are vehicle volume, manufacturing and industrial processes, garbage burning, mass populations, and land formation.