1. What are the six criteria pollutants that the EPA uses as indicators of air quality?

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2. What is a non attainment area as defined by the EPA's Clean Air Act of 1990?

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3. What are at least two human health problems associated with high levels of ground level ozone?

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4. How is ozone produced in the Earth's lower atmosphere?

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5. Scientists refer to two types of ozone: Good ozone and Bad ozone....What does this mean?

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