AP Environmental Science Quiz: Air Pollution Sources (Stationary & Mobile)

📚 Quick Study Guide

• 🏭 Stationary Sources: These are fixed-location emitters, including power plants, factories, and refineries. Key pollutants include sulfur dioxide ($SO_2$), nitrogen oxides ($NO_x$), and particulate matter ($PM$).
• 🚗 Mobile Sources: These are moving emitters, primarily vehicles such as cars, trucks, and airplanes. They release pollutants like carbon monoxide ($CO$), nitrogen oxides ($NO_x$), volatile organic compounds (VOCs), and particulate matter ($PM$).
• 💨 Primary Pollutants: Emitted directly from the source (e.g., $SO_2$ from a power plant).
• ☀️ Secondary Pollutants: Formed in the atmosphere through chemical reactions (e.g., ozone ($O_3$) formed from $NO_x$ and VOCs in sunlight).
• 📏 Air Quality Index (AQI): A scale used to report daily air quality, with values ranging from 0 to 500. Higher values indicate greater pollution levels.
• 📝 Control Measures: Strategies to reduce air pollution, including scrubbers in smokestacks, catalytic converters in vehicles, and regulations on fuel composition.
• 🌱 Impacts: Air pollution can lead to respiratory problems, cardiovascular diseases, and environmental damage such as acid rain and smog.

🧪 Practice Quiz

1. Which of the following is a primary pollutant emitted from stationary sources?
   1. A. Ozone ($O_3$)
   2. B. Sulfur Dioxide ($SO_2$)
   3. C. Smog
   4. D. Acid Rain
2. Which of the following is a major pollutant from mobile sources?
   1. A. Carbon Monoxide ($CO$)
   2. B. Sulfur Dioxide ($SO_2$)
   3. C. Particulate Matter ($PM_{10}$) only
   4. D. Lead ($Pb$)
3. Which of the following is an example of a secondary pollutant?
   1. A. Carbon Monoxide ($CO$)
   2. B. Nitrogen Oxides ($NO_x$)
   3. C. Ozone ($O_3$)
   4. D. Volatile Organic Compounds (VOCs)
4. What type of device is used to reduce emissions from vehicles?
   1. A. Electrostatic Precipitator
   2. B. Scrubber
   3. C. Catalytic Converter
   4. D. Cyclone Separator
5. Which stationary source is most likely to emit mercury (Hg) into the atmosphere?
   1. A. Cement Factory
   2. B. Coal-fired Power Plant
   3. C. Waste Incinerator
   4. D. Oil Refinery
6. What does the Air Quality Index (AQI) measure?
   1. A. Water Quality
   2. B. Soil Quality
   3. C. Daily Air Quality
   4. D. Noise Pollution
7. Which of the following contributes most to the formation of photochemical smog?
   1. A. Sulfur Dioxide ($SO_2$)
   2. B. Carbon Dioxide ($CO_2$)
   3. C. Nitrogen Oxides ($NO_x$) and VOCs
   4. D. Particulate Matter ($PM_{2.5}$)