What is one technological advancement that has been instrumental in reducing air pollution?

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The choice of catalytic converters as a technological advancement that has been instrumental in reducing air pollution is well-founded. Catalytic converters are devices installed in the exhaust systems of automobiles that convert harmful gases produced during the combustion of fuel into less harmful emissions before they are released into the atmosphere.

Specifically, catalytic converters facilitate chemical reactions that transform carbon monoxide, nitrogen oxides, and unburned hydrocarbons—common pollutants emitted by vehicles—into less harmful substances such as carbon dioxide and nitrogen. This process significantly lowers the levels of toxic emissions that contribute to air pollution and smog formation.

The effectiveness of catalytic converters in reducing emissions has played a crucial role in improving air quality and compliance with environmental regulations. Their widespread adoption in vehicles has been critical in efforts to tackle air pollution and protect public health.

While options like paint with reduced VOCs have contributed to reducing certain types of indoor air pollution, they do not address vehicle emissions on a broader scale. Leaded gasoline, on the other hand, is associated with increased pollution and health hazards, and the usage of plastic bags does not directly relate to reducing air pollution. Therefore, catalytic converters represent a key innovation specifically targeting vehicle emissions and air quality improvement.

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