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Pollution And Photochemical Smog In New York City

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1. What is the difference between the type of smog experienced by cities in the eastern United States and that found in Southern California? early people burned wood for heat and cooking fires in enclosed spaces such as caves and small tents or houses. And Photochemical smog is the abundance of cars and sunshine that provided the perfect setting for a chemical reaction between some of the molecules in auto exhaust or oil refinery emissions. 2. London has suffered from terrible air pollution for at least seven centuries. Why is the city so prone to its famous “London fog?” What did London do to get rid of its air pollution? Because of The terrible events in Pennsylvania and London, plus the recognition of the hazards of photochemical smog. They did the Clean Air Act in 1970 in the United States. The act now regulates 189 pollutants. 3. …show more content…

What might be a reason why the city of San Francisco and its metropolitan area is not on the list of smoggiest cities for 2012? Maybe because they reduce somehow their pollution during that period. 5. Why are naturally occurring substances, such as particulates or carbon dioxide, sometimes considered pollutants? Because they are being used by humans such as volcanic ash. Dust is natural but exacerbated by human activities.

6. How does ozone form from vehicle exhaust? It is created by a chemical reaction that takes place in exhaust and in the presence of sunlight. 7. What are the necessary ingredients for ozone creation, excluding those that are readily available in the atmosphere? Why could there be a city with a lot of cars but relatively little ozone pollution? Cars, Trucks, PM, HC, NOx, CO, and SO2. Depending on what climate is in that city the ozone pollution would be high or low. 8. Some people say that we need to phase out fossil fuel use and replace it with clean energy. Why is fossil fuel use becoming undesirable? fossil fuels do not burn completely and the incomplete chemical reactions produce

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