character: Dr. Jane Smith
topic: Particulate Matter and Its Effect on Human Health
grade: 9
subject: Chemistry
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character: Dr. Emily Brown
topic: The Chemistry of Air Pollution
grade: 9
subject: Chemistry
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character: Mr. John Davis
topic: Understanding Air Quality Index (AQI)
grade: 9
subject: Chemistry
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character: Ms. Lisa White
topic: Health Impacts of Environmental Chemicals
grade: 9
subject: Chemistry
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