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Chapter 20: Problem 55

Suggest ways to minimize the formation of photochemical smog.

Short Answer

Expert verified
To minimize the formation of photochemical smog, measures such as reducing vehicle use, implementing stricter pollution controls for industries, increasing greenery, and raising public awareness about the environmental impact can be taken.

Step by step solution

01

Understanding Photochemical Smog Formation

Photochemical smog is a type of air pollution which occurs under certain environmental conditions. It is formed by the reaction between sunlight, nitrogen oxides (NOx) and volatile organic compounds (VOCs) in the atmosphere.
02

Conditions Favoring Photochemical Smog

The formation of photochemical smog is usually favored by specific conditions which include sunny weather, still air conditions (no wind), and a high concentration of nitrogen oxides and volatile organic compounds. Urban areas with heavy vehicular traffic and factories often see its formation.
03

Suggesting Ways to Minimize the Formation of Photochemical Smog

1. Reduction in the use of vehicles: As vehicular pollution is a major contributor to smog, promoting the use of public transport, carpooling, and electric vehicles can help. \n2. Implementing restrictions on industrial pollutants: Factories and industries emit a lot of NOx and VOCs. Implementing tighter environmental standards can control these emissions. \n3. Increase greenery: Planting more trees can reduce the level of pollutants in the air. Trees absorb a lot of air pollutants and emit fresh oxygen. \n4. Raising Public Awareness: Making people aware of the consequences of photochemical smog and educating them about the ways to reduce their carbon footprints can also be a significant step.

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Most popular questions from this chapter

Explain the processes that have a warming effect on the stratosphere.

The effective incoming solar radiation per unit area on Earth is \(342 \mathrm{~W} / \mathrm{m}^{2}\). Of this radiation, \(6.7 \mathrm{~W} / \mathrm{m}^{2}\) is absorbed by \(\mathrm{CO}_{2}\) at \(14,993 \mathrm{nm}\) in the atmosphere. How many photons at this wavelength are absorbed per second in \(1 \mathrm{~m}^{2}\) by \(\mathrm{CO}_{2} ?(1 \mathrm{~W}=1 \mathrm{~J} / \mathrm{s})\)

Why is more emphasis placed on the role of carbon dioxide in the greenhouse effect than on that of water?

How are past temperatures determined from ice cores obtained from the Artic or Antarctica? (Hint: Look up the stable isotopes of hydrogen and oxygen. How does energy required for vaporization depend on the masses of \(\mathrm{H}_{2} \mathrm{O}\) molecules containing different isotopes? How would you determine the age of an ice core?)

List the properties of CFCs, and name four major uses of these compounds.
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