Outdoor Air Pollution: The Dangers And Effects Of Air Pollution

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Outdoor air pollution is usually caused by releasing fossil fuels into the air through the process of combustion. (BE3) Because outdoor pollution was becoming a major concern, the United States Environmental Protection Agency passed the Clean Air Act in 1970. During this time, the United States Environmental Protection Agency discovered six air pollutants that were the most prominent threats to humans. These pollutants were “ozone, sulfur dioxide, particulate matter, nitrogen dioxide, carbon monoxide, and lead.”
Before the U.S removed lead from gasoline, lead was a serious threat to humans, especially children. If one was exposed to lead for long periods of time, he or she could experience abdominal pain, memory loss, and kidney or brain damage. Even though ozone, a natural gas used to block the sun’s harmful rays, is beneficial, it can also be dangerous to humans. Ground-level ozone can irritate lungs and narrow airways, and it is also the “main component in smog” [Pg. 19]. Particulate matter is known as small and large particles of dust and pollen that is the product from the process of combustion. Surprisingly, it is the smaller particles that are the deadliest, not the larger ones. Because of the size of the smaller particles, they are more likely to become embedded in the lung tissue. Particulate matter
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In addition, outside pollutants can enter through open windows and ventilation systems, which can prompt indoor pollution. Indoor pollution can be more hazardous than outdoor pollution if people spend great amounts of time indoors. In fact, indoor pollution was becoming such a major concern that the “EPA (Environmental Protection Agency) and its Science Advisory Board ranked indoor air pollution among the top five environmental risks to public health.” [Pg. 22] (SS9) Radon, asbestos, and bacteria – these are all indoor pollutants, although radon is the most
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