APES Video Notes: Reduction of Air Pollutants

What is a common everyday action that can reduce air pollution?

• Riding bikes or using public transit

• Using more electrical appliances

• Increasing meat consumption

• Driving cars frequently

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What does the Clean Air Act empower the EPA to do?

• Promote the use of electric vehicles

• Set acceptable levels of certain air pollutants

• Ban the use of fossil fuels

• Mandate international environmental standards

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What is the main benefit of using pollution credits?

• They increase the production of pollutants

• They directly reduce the cost of fuel

• They encourage companies to reduce emissions

• They are used to pay environmental taxes

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What is the primary function of the CAFE vehicle standards?

• To ensure all vehicles are electric

• To improve fuel economy and reduce emissions

• To regulate the color and design of vehicles

• To set minimum safety standards

How do vapor recovery nozzles help reduce pollution?

• By reducing noise pollution

• By increasing fuel efficiency in cars

• By capturing fumes during vehicle refueling

• By filtering air in industrial zones

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What is the purpose of a catalytic converter in vehicles?

• To monitor fuel consumption

• To increase engine power

• To reduce exhaust noise

• To convert harmful emissions into less harmful gases

What role does crushed limestone play in reducing emissions in coal-fired power plants?

• It acts as a fuel source

• It increases the heat of combustion

• It acts as a catalyst for coal burning

• It captures sulfur dioxide as calcium sulfate

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How does fluidized bed combustion help reduce NOx emissions?

• By using a special type of coal

• By making the combustion process more efficient

• By increasing the combustion temperature

• By cooling the combustion process

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What is the function of a wet scrubber in emission control?

• To monitor emission levels automatically

• To trap and convert pollutants in emissions

• To increase the efficiency of fuel use

• To cool down the emissions

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What does an electrostatic precipitator do to reduce particulate matter?

• It uses a strong vacuum to remove particles

• It charges particles to collect them on plates

• It uses a wet process to trap particles

• It heats the particles to burn them off

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