Question

How can you apply green chemistry for the following: To control photochemical smog.

Answer 1

Hint: Green chemistry is the development of chemical products and processes that decrease or eliminate the usage of hazardous compounds. Green chemistry pertains to a chemical product's whole life cycle, including its design, production, usage, and disposal.

Complete answer: When UV radiation from the sun combines with nitrogen oxides in the atmosphere, photochemical smog is generated. It appears as a brown haze and is most evident in the morning and afternoon, particularly in heavily populated, hot cities. When nitrogen oxides and volatile organic compounds (VOCs) combine with sunlight, photochemical smog is created, resulting in a brown cloud over cities. It happens more frequently in the summer since that is when we get the most sunshine.
It produces a painful inflammation of the respiratory system, as well as decreased lung function and difficulties breathing, which is particularly noticeable when exercising or working outside. High amounts of pollution can also provoke asthma episodes by increasing sensitivity to allergens, which are asthma triggers.
Steps to reduce smog:
(a) To manage or limit the production of photochemical smog, a variety of strategies are employed. Controlling the basic precursors of photochemical smog, such as and hydrocarbons, will automatically lower the secondary precursors of photochemical smog, such as ozone and PAN.
b) In most cars, catalytic converters are employed to reduce the emission of nitrogen oxide and hydrocarbons into the environment.
(c) Because certain plants, such as Pinus, Juniparus, Quercus, Pyrus, and Vitis, can metabolise nitrogen oxide, their planting might aid.

Note:
Smog, often known as smoke fog, is a kind of severe air pollution. The term "smog," which is a contraction of the terms "smoke" and "fog," was invented in the early twentieth century to describe smoky fog owing to its opacity and stink. The term was originally meant to relate to pea soup fog, which was a common and major phenomenon in London from the 19th century until the mid-20th century.