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The major undesirable components of photochemical smog are nitrogen dioxide (NO2), ozone (O3), PAN (peroxyacetylnitrate), and chemical compounds that contain the –CHO group (aldehydes). PAN and aldehydes can cause eye irritation and plant damage if their concentrations are sufficiently high.Photochemical smog is produced when sunlight reacts with nitrogen oxides and at least one volatile organic compound (VOC) in the atmosphere. Nitrogen oxides come from car exhaust, coal power plants, and factory emissions.Common examples of secondary pollutants that contribute towards the formation of photochemical smog include aldehydes, tropospheric ozone, and peroxylacyl nitrates (often abbreviated to PAN).
What is the major source of photochemical smog?
Photochemical smog is produced when sunlight reacts with nitrogen oxides and at least one volatile organic compound (VOC) in the atmosphere. Nitrogen oxides come from car exhaust, coal power plants, and factory emissions.
What is an example of photochemical smog?
Common examples of secondary pollutants that contribute towards the formation of photochemical smog include aldehydes, tropospheric ozone, and peroxylacyl nitrates (often abbreviated to PAN).
Photochemical Smog (Animation)
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What is the major photochemical?
Therefore, the correct answer is option C nitrogen oxides.
What are the major types of smog?
At least two distinct types of smog are recognized: sulfurous smog and photochemical smog.
What is the major source of photochemical smog quizlet?
Photochemical smog is caused by nitrogen oxides combing with sunlight and other pollutants. Acid rain is caused by sulfur oxides and nitrogen oxides combining with water.
Is ozone photochemical smog?
Photochemical smog consists of ozone (O3) and other closely related species (“secondary pollutants”) that are produced photochemically from directly emitted species, in a process that is driven by sunlight and is accelerated by warm temperatures.
Which of the following is not a major constituent of photochemical smog?
The correct answer is Polyaromatic hydrocarbons.
See some more details on the topic Which is the major photochemical smog? here:
photochemical smog | air pollution | Britannica
Photochemical smog, which is also known as “Los Angeles smog,” occurs most prominently in urban areas that have large numbers of automobiles …
smog | National Geographic Society
Photochemical smog is produced when sunlight reacts with nitrogen oxides and at least one volatile organic compound (VOC) in the atmosphere.
Smog – Wikipedia
Photochemical smog, as found for example in Los Angeles, is a type of air pollution derived from vehicular emission from internal …
Photochemical smog – Energy Education
Photochemical smog forms from a complex process, however the source of it is quite apparent. The largest contributor is automobiles, …
What are examples of photochemical reaction?
- Photosynthesis: plants use solar energy to convert carbon dioxide and water into glucose and oxygen.
- Human formation of vitamin D by exposure to sunlight.
- Bioluminescence: e.g. In fireflies, an enzyme in the abdomen catalyzes a reaction that produced light.
Which is not a photochemical smog?
Carbon dioxide is not related to formation of Photochemical smog.
Which of the following is a major photochemical accident?
Oxides of nitrogen are the major photochemical oxidants which itself gets reduced and oxidise other components. Was this answer helpful?
What is Los Angeles smog?
Photochemical smog (Los Angeles smog)
It forms mainly in the summer months when temperatures reach high levels. Los Angeles smog consists mainly of carbon oxides, nitrogen oxides, and hydrocarbons. Contrary to sulfurous smog, photochemical smog originates from exhaust fumes and industrial emissions.
Lecture 3.2 Photochemical Smog
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Is so2 a component of photochemical smog?
\[N{O_2}\] and unsaturated hydrocarbons are the primary constituents of photochemical smog. These primary constituents are introduced into the atmosphere via vehicular emissions and industrial processes.
What is another name for photochemical smog?
Photochemical smog, which is also known as “Los Angeles smog,” occurs most prominently in urban areas that have large numbers of automobiles. It requires neither smoke nor fog. This type of smog has its origin in the nitrogen oxides and hydrocarbon vapours emitted by automobiles…
What type of smog is London smog?
Sulfurous smog, also known as London smog, develops due to high concentration of sulfur oxides in the air. This gas is a serious air pollutant, causing irritation to human eyes, nose and lungs. It is released into the air by sulfur-bearing fossil fuels like coal.
Why is photochemical smog called LA smog?
Photochemical smog: This type of smog was observed in Los Angeles(1940s) and hence named as Los Angeles smog. It is formed when the air contains NO 2 and hydrocarbons and the mixture is exposed to sunlight. As the reaction take place in the presence of light to form the smog, it is called photochemical smog.
What is a major source of air pollution?
mobile sources – such as cars, buses, planes, trucks, and trains. stationary sources – such as power plants, oil refineries, industrial facilities, and factories. area sources – such as agricultural areas, cities, and wood burning fireplaces.
Why is burning coal a major source of pollution quizlet?
Coal combustion releases air pollutants including carbon dioxide, sulfur dioxide, toxic metals, and particulates. The combustion of fossil fuels releases nitrogen oxides into the atmosphere, leading to the production of ozone.
Which type of smog is a major problem in many cities in developed countries during the summer?
Photochemical smog is more prevalent during summer days since incident solar radiation fluxes are high, which favors the formation of ozone (reactions 4 and 5).
Is co2 a component of photochemical smog?
Photochemical smog only occurs in presence of sunlight. Carbon dioxide is a greenhouse gas and hence it’s concentration in atmosphere does not increase the smog.
What is photochemical smog Class 11?
Photochemical smog refers to a type of smog which is formed when the ultraviolet light from the sun reacts with nitrogen oxides present in the atmosphere. This smog can cause a lot of adverse effects on humans and other living organisms.
Which one of the following is a major component of photochemical smog quizlet?
nitrogen oxide (NO) and nitrogen dioxide (NO2) collectively. These gases play a role in photochemical smog. colorless and highly reactive gas; a major component of photochemical smog and also found in the stratosphere where it protects life by filtering out most harmful UV radiation from the sun.
The science of smog – Kim Preshoff
Images related to the topicThe science of smog – Kim Preshoff
Which of the following is not a major air pollutant?
The Correct Answer is Option (3) i.e Nitrogen. Nitrogen is not an air-pollutant as the atmospheric composition contains 78% Nitrogen and 21% Oxygen by proportion.
Which of the following is not a part of photochemical smog Mcq?
1. Which of the following is not a part of photochemical smog? Explanation: Photochemical smog includes NO2, O3 and PAN. The damage to vegetation is caused by NO2, O3 and PAN.
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