Air Pollution

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What is air pollution?

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Air pollution refers to the presence of harmful substances in the atmosphere, which can have adverse effects on human health, the environment, and the climate.

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What are primary pollutants?

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Primary pollutants are substances that are directly emitted into the atmosphere from sources such as vehicles, industries, and natural events.

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What are secondary pollutants?

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Secondary pollutants are not emitted directly; they form in the atmosphere through chemical reactions between primary pollutants and other atmospheric components.

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What is a temperature inversion?

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A temperature inversion is a weather phenomenon where a layer of warm air traps pollutants close to the Earth's surface, preventing them from dispersing.

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What is a catalytic converter?

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A catalytic converter is a device in vehicles that reduces harmful emissions by converting toxic gases like carbon monoxide and nitrogen oxides into less harmful substances.

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What is sick building syndrome?

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Sick building syndrome refers to a situation where occupants of a building experience health issues that seem linked to time spent in that building, often due to poor air quality.

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What are the health effects of air pollution?

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Air pollution can cause respiratory problems, cardiovascular diseases, and can exacerbate conditions like asthma and allergies.

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What is smog?

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Smog is a type of air pollution that is a mixture of smoke and fog, often resulting from industrial emissions and vehicle exhaust.

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What role do trees play in air quality?

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Trees improve air quality by absorbing carbon dioxide and releasing oxygen, as well as trapping dust and pollutants on their leaves.

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What is the significance of the Clean Air Act?

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The Clean Air Act is a U.S. law designed to control air pollution on a national level, setting standards for air quality and regulating emissions.