EXAM II

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SMOG + POLICY

Last updated 7:38 PM on 4/12/26
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13 Terms

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Smog

Mixture of pollutants, especially ozone and particulates

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Why LA had smog

Geography, sunlight, and car emissions

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Dr. Haagen-Smit

Scientist who identified chemical cause of smog

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Role of cars in smog

Major source of NOx and VOCs

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Catalytic converter

Device that reduces car emissions

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Why lead was removed from gasoline

To allow catalytic converters to function

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Clean Air Act

Federal law regulating air pollution

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Air Pollution Control District

Agency regulating pollution in LA

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Ringelmann Chart

Tool used to measure smoke density

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Stamp Out Smog group

Group that raised awareness of smog issues

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First Earth Day (1970)

Event to promote environmental awareness

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Impact of smog events

Led to stronger environmental laws

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Photochemical smog

Smog formed through sunlight-driven reactions