Photochemical Smog

Photochemical smog results from a reaction between

• nitrogen, oxygen and sunlight

• nitrogen, carbon and sunlight

• oxygen, water and lead

• sunlight, sulfur and carbon

• carbon, hydrogen, and methane

Tags

NGSS.HS-PS1-5

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

Tags

NGSS.HS-ESS3-4

Smog or ground ozone forms in the troposphere. Which pollutants are most responsible for smog or ground ozone?

• sulfur and particulate matter

• volatile organic compounds and nitrogen oxides

• carbon monoxide and carbon dioxide

• none of these answers are correct

Which below is considered an air pollutant?

• stratospheric ozone

• tropospheric ozone

• exospheric ozone

• mesospheric ozone

• thermospheric ozone

Tags

NGSS.HS-ESS3-6

What is a secondary pollutant? 

• pollutant that is put directly into air by human activities

• pollutants that react with other primary pollutants

Thermal inversions

• increase the rate of smog formation

• trap high concentrations of pollution as ground level

• result in increased levels of acid deposition

• reduce the negative effects of VOC's

Tags

NGSS.HS-ESS2-2

The principal component of photochemical smog

Source: Chemical reaction of VOCs and NO_x

Health effects: breathing problems, reduced lung capacity, asthma, eye irritation, reduced resistance to disease

Environmental effects: can damage plants

• Pb

• CO

• SO₂

• O₃

Tags

NGSS.HS-ESS3-6

What is photochemical smog primarily composed of?

• Ozone (O3)

• Carbon monoxide (CO)

• Sulfur dioxide (SO2)

• Lead (Pb)

Tags

NGSS.HS-PS1-2

Which of the following is a primary contributor to the formation of photochemical smog?

• Volatile Organic Compounds (VOCs)

• Particulate Matter (PM)

• Chlorofluorocarbons (CFCs)

• Methane (CH4)

What role does sunlight play in the formation of photochemical smog?

• It breaks down ozone into oxygen.

• It initiates the chemical reactions that form smog.

• It has no effect on smog formation.

• It disperses pollutants, reducing smog.