What Is A Secondary Air Pollutant?
Secondary air pollution is pollution caused by reactions in air already polluted by primary emissions (from factories automobiles and so forth). An example of secondary air pollution is photochemical smog.Nov 22 2001
What are examples of secondary air pollutants?
Examples of a secondary pollutant include ozone which is formed when hydrocarbons (HC) and nitrogen oxides (NOx) combine in the presence of sunlight NO2 which is formed as NO combines with oxygen in the air and acid rain which is formed when sulfur dioxide or nitrogen oxides react with water.
What is primary and secondary pollutants with example?
Primary pollutants include ammonia sulfur dioxide nitrogen dioxide and carbon monoxide. Secondary pollutants include ground-level ozone acid rain and nutrient enrichment compounds.
What is not a secondary air pollutant?
Smog is not a secondary pollutant. Smog is air pollution that reduces visibility. The term “smog” was first used in the early 1900s to describe a mix of smoke and fog. The smoke usually came from the burning of coal.
Which of following is a secondary pollutant?
Examples of secondary pollutants are Ozone Formaldehyde PAN (peroxy acetyl nitrate) and Smog etc.
Is radon a secondary pollutant?
Radon perfumes noxious odors can also be considered pollutants. … Secondary – Formed when primary pollutants react or combine with one another or the basic elements.
Which is the secondary pollutant which influences air pollution?
Given that the ozone is cataloged as a secondary air pollutant its occurrence into the ambient air is due to chemical reactions among primary polluting compounds emitted directly from emission sources. Therefore its tropospheric formation is associated with anthropogenic and biogenic emissions [50].
What are the primary and secondary air pollutant?
Is so2 a secondary pollutant?
Like nitrogen dioxide sulfur dioxide can create secondary pollutants once released into the air. Secondary pollutants formed with sulfur dioxide include sulfate aerosols particulate matter and acid rain.
Which of the following is not a secondary pollutant *?
| 1) | Photochemical smog |
|---|---|
| 2) | Ozone |
| 3) | All ( ( & ( |
| 4) | Sulphur dioxide |
| 5) | NULL |
Which of the following group is a secondary air pollutant?
3. Which of the following is called the secondary air pollutant? Sol: (b) Ozone.
Which of the following is secondary air pollutant photochemical smog?
Which is a secondary air pollutant quizlet?
What is a secondary pollutant? A secondary pollutant is when a primary pollutant comes into contact with other primary pollutants or with naturally occurring substances. An example is ground-level ozone.
Is smog a secondary or primary pollutant?
Primary pollutants enter the air directly. They include carbon oxides nitrogen oxides sulfur oxides particulates volatile organic compounds (VOCs) and heavy metals. Secondary pollutants form from primary pollutants. They include photochemical smog ozone near the ground and evaporation of chemicals.
What is radon gases?
What type of pollutant is radon?
Health Effects
Radon is a major source of indoor air pollution and is the cause of tens of thousands of deaths annually in the United States and Europe. Radon decays to form daughters or decay products which include radioactive polonium lead and bismuth.
Why secondary pollutants are more harmful than primary?
Secondary pollutants are more harmful than primary pollutants because the harmful gases produced by primary pollutants like carbon monoxide can result in air pollution in the atmosphere. … Secondary pollutants can result in Acid deposition.
What is the difference between primary and secondary air pollutants explain with examples?
Primary pollutants are emitted directly into the atmosphere by a source. But secondary pollutants are formed as a result of a chemical reaction between primary pollutants or with any other atmospheric particle. … Sulphur dioxide nitrogen oxides and particulate matter (PM) are few examples of primary pollutants.
Why is NO2 a secondary pollutant?
Nitrogen dioxide is also a secondary pollutant because it can be formed through oxidisation. Nitrogen dioxide further oxidises into nitric acid (HNO3) which can enter the environment through the ground as droplets or nitrate-containing particles.
Is NOx a primary or secondary pollutant?
Primary pollutants can be emitted from many sources including cars coal-fired power plants natural gas power plants biomass burning natural forest fires volcanoes and many more. … Types of primary pollutants include: Nitrogen oxides (NOx)
How is SO2 and air pollutant?
Sulphur dioxide (SO2) is an air pollutant made up of sulphur and oxygen atoms and is harmful to both plants and people. On dissolution in rain water SO2 produces acid rain. This SO3 gets converted into H2SO4 in the presence of moisture which comes down in the form acid rain.
What are the primary pollutants of air pollution?
These six pollutants are carbon monoxide lead nitrogen oxides ground-level ozone particle pollution (often referred to as particulate matter) and sulfur oxides.
Which of the following is secondary air pollutant Mcq?
8. Which of the following is a secondary air pollutant? Explanation: Peroxy Acetyl Nitrate is a secondary air pollutant whereas Suspended Particulate Matter SO2 and NO2 are primary air pollutants.
Which of the following is not a primary pollutant of air pollution?
1. Which of these is NOT a primary pollutant? Explanation: Ozone is not a primary pollutant since it is formed by the photo-chemical reaction of oxygen with the UV rays and not directly discharged into the atmosphere by a source.
Which of the following is a secondary pollutant so2?
Hence the correct answer is Option (c) i.e. ${O_3}$ as it is a secondary pollutant.
Which of the following air pollutants are responsible for photochemical smog?
Thus photochemical smog is mainly composed of oxides of nitrogen volatile organic compounds (primary pollutants) Carbon monoxide and peroxyacetyl nitrate (PAN) (secondary pollutants). Carbon monoxide accelerates the reaction as measured by nitric oxide oxidation or ozone formation.
What are examples of secondary pollutants quizlet?
Secondary pollutants are formed when primary pollutants react with one another or with the basic components of air to form new harmful pollutants. List 3 each of primary and secondary pollutants. Primary: Sulfur dioxide nitrogen oxide lead. Secondary: ozone NO2 and acid rain.
Which of the following are examples of secondary pollutants quizlet?
Examples of secondary pollutants include ozone (formed when hydrocarbons and nitrogen oxides combine in the presence of sunlight) NO2 (formed as NO combines with oxygen in the air) and acid rain (formed when sulfur dioxide or nitrogen oxides react with water).
What is primary and secondary air pollution quizlet?
primary air pollutant. pollutants that are produced by humans and nature. secondary air pollutant. air pollutants formed when primary air pollutants react with one another or with other chemicals in the air. particulate matter.
Is industrial smog a secondary pollutant?
Which pollutants are responsible for the cause of smog?
Nitrogen oxides come from car exhaust coal power plants and factory emissions. VOCs are released from gasoline paints and many cleaning solvents. When sunlight hits these chemicals they form airborne particles and ground-level ozone—or smog.
Where does radon come from in a house?
Radon is a radioactive gas. It comes from the natural decay of uranium that is found in nearly all soils. It typically moves up through the ground to the air above and into your home through cracks and other holes in the foundation. Your home traps radon inside where it can build up.
Is it OK to live in a house with radon?
The EPA states “Radon is a health hazard with a simple solution.” Once radon reduction measures are in place home buyers need not worry about the quality of the air in the home. … Since removing radon is relatively simple your family will be safe in a home with a radon reduction system in place.
What if radon is found in my home?
Radon is a radioactive gas emitted naturally from the ground. However when radon gets trapped indoors—after entering a home through joints in walls basement floors foundations and other openings—it may concentrate at dangerous levels. And exposure to high levels of radon can cause lung cancer.
Air Pollution
Primary and Secondary Air Pollutants | CBSE UGC NET | People and Environment
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Primary and Secondary Air Pollutants