7.2 Photochemical Smog

Photochemical smog is a type of air pollution that forms when sunlight reacts with pollutants such as nitrogen oxides and volatile organic compounds.

• It is a type of air pollution that forms when sunlight reacts with pollutants such as nitrogen oxides and volatile organic compounds.

• It is a natural weather phenomenon unrelated to human activities.

• It is a type of air pollution formed primarily by sulfur dioxide emissions.

• It is a form of smog produced by volcanic eruptions.

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS3-4

Which of the following is a secondary product of photochemical smog?

• Nitrogen oxides (NOx)

• Volatile organic compounds (VOCs)

• Ozone (O3)

• Carbon dioxide (CO2)

Tags

NGSS.MS-PS1-2

Fill in the blank: Photochemical smog is most likely to be seen in urban areas during ______ or heavy traffic.

• rush hour

• midnight

• afternoon

• weekend

PANs, known as peroxyacetyl nitrate, are secondary pollutants formed in the atmosphere that adversely affect plant health by impairing photosynthesis and causing oxidative damage.

• They are atmospheric pollutants causing harm to plants.

• They are plant hormones promoting growth.

• They are nutrients essential for plant development.

• They have no effect on plants.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-6

NGSS.MS-LS2-4

Two health effects of photochemical smog:

• Respiratory problems and eye irritation

• Improved lung capacity and clearer vision

• Weight loss and increased immunity

• Enhanced athletic performance and muscle strength

Which of the following is a method to reduce photochemical smog?

• Use of diesel vehicles

• Enforce emissions testing and standards

• Increase use of coal

• Reduce use of public transportation

Tags

NGSS.HS-ESS3-4

NGSS.HS-ETS1-3

NGSS.HS-LS2-7

Fill in the blank: Temperature inversions are a natural occurrence, but certain environmental conditions combined with _______ factors can increase their likelihood.

• anthropogenic

• geogenic

• biogenic

• technogenic

Tags

NGSS.MS-ESS3-4

The impact of temperature inversions on large cities is the trapping of pollutants leading to deteriorated air quality.

• Trapping of pollutants leading to deteriorated air quality

• Enhancement of natural air circulation

• Reduction of urban smog

• Increase in green cover

In 1998 in Tianjin, China, a temperature inversion resulted in a

• Smog disaster

• Flood

• Earthquake

• Tornado

Tags

NGSS.MS-ESS2-5

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