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Los Angeles is the
second-largest city in the
United States, with an estimated population of 3.85 million people. Los Angeles is one of the
cultural,
economic,
scientific and
entertainment centers of the country. Due to the city's geography as well as the population's heavy reliance on
automobiles as a major form of transportation, the city suffers from severe
air pollution in the form of
smog. The
Los Angeles Basin and the
San Fernando Valley hold in the fumes from automobiles,
diesel
trucks,
shipping, and
locomotive engines, as well as manufacturing and other sources.
Photo credit:
Diliff |