APES Unit 7 Air Pollution

The 3 main anthropogenic sources of gaseous air pollutants in the US are

• soil erosion, volcanoes, and forest fires

• transportation, soil erosion, and energy production

• industry, transportation, and energy production

• industry, transportation and agriculture

The majority of atmospheric mercury is produced by:

• Municipal Waste Incinerators
• Coal burning power plants
• Medical waste
• Runoff from thermometer factories

What three components have to be present to create photochemical smog?

• VOCS, PANS, Carbon Dioxide
• VOCS, Ozone, Nitrogen Monoxide
• Nitrogen Dioxide, Sunlight, and VOCS
• Sulfur Dioxide, Nitrogen Dioxide, and Ozone

This molecule prevents UV radiation from getting to the troposphere

• stratospheric ozone

• tropospheric ozone

• Calcium Carbonate

• CFC

Which of the following is NOT a carcinogen?

• Arsenic
• Radon
• Asbestos
• Carbon Monoxide

a secondary pollutant

• forms in the stratosphere

• is transformed by sunlight, water, or other elements in the atmosphere

• cannot be directly tracked to its source

• forms primarily from incomplete combustion

Which is a source of sulfur dioxide found in nature?

• forest fires

• lightning

• plant emissions

• volcano

High levels of photochemical smog are due to
   I nitrogen dioxide
  II sulfur dioxide
III VOC's

• I only
• I and II only
• II and III only
• I and III only

Thermal inversions

• increase the rate of smog formation

• trap high concentrations of pollution at ground level

• result in increased levels of acid deposition

• reduce the negative effects of VOC's

Acid deposition forms as a result of

• nitrogen oxides and photochemical smog

• carbon monoxide and VOC's

• sulfur dioxide and VOC's

• nitrogen oxides and sulfur dioxides