Question: What Are Primary And Secondary Pollutants Give Examples?

What are examples of primary pollutants?

Types of primary pollutants include:Nitrogen oxides (NOx)Carbon monoxide (CO)Volatile organic compounds (VOCs)Sulfur oxides (SOx)Particulate matter (PM)Mercury.and more..

Which of the following is a secondary pollutant answer?

When primary pollutants formed from combustion processes react in the atmosphere, secondary pollutants are formed. For example, ozone. So, the correct answer is ‘O3.

Which one of the following is a secondary air pollution?

Examples of a secondary pollutant include ozone, which is formed when hydrocarbons (HC) and nitrogen oxides combine in the presence of sunlight. Nitrogen oxide 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.

Which of the following is not a secondary air pollutants?

Which of the following is not a secondary air pollutant ?1)Photochemical smog2)Ozone3)All (, ( & (4)Sulphur dioxide5)NULL

What’s the difference between primary and secondary?

Primary sources are first-hand accounts of a topic while secondary sources are any account of something that is not a primary source. … Published research, newspaper articles, and other media are typical secondary sources.

Is Sulphur dioxide a primary or 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.

Is ozone a primary or secondary pollutant?

Ground-level ozone is a colorless and highly irritating gas that forms just above the earth’s surface. It is called a “secondary” pollutant because it is produced when two primary pollutants react in sunlight and stagnant air. These two primary pollutants are nitrogen oxides (NOx) and volatile organic compounds (VOCs).

What are primary and secondary pollutants?

Definition: A primary pollutant is an air pollutant emitted directly from a source. A secondary pollutant is not directly emitted as such, but forms when other pollutants (primary pollutants) react in the atmosphere.

Is CFC a secondary pollutant?

The pollutants have been classified into primary and secondary categories. … The major primary pollutants are Oxides of Sulphur, Oxides of Nitrogen, Oxides of Carbon, Particulate Matter, Methane, Ammonia, Chlorofluorocarbons, Toxic metals etc. The secondary pollutants are not emitted directly.

Is Pan a secondary pollutant?

PANs are secondary pollutants, which means they are not directly emitted as exhaust from power plants or internal combustion engines, but they are formed from other pollutants by chemical reactions in the atmosphere.

What are 5 primary air pollutants?

5 Major Outdoor Air PollutantsOzone (O3)Nitrogen Oxides (NOx)Carbon Monoxide (CO)Sulfur Dioxide (SO2)Particulate Matter (PM10 and PM2.5)

What are the 6 primary pollutants?

These six pollutants are carbon monoxide, lead, nitrogen oxides, ground-level ozone, particle pollution (often referred to as particulate matter), and sulfur oxides.

What are the 5 primary air pollutants and their sources?

Name five primary air pollutants, and give sources for each. The five primary air pollutants include carbon monoxide, nitrogen oxides, particulate matter, sulfur oxides, and volatile organic compounds. The sources for all five of these pollutants include electricity production, industry, and transportation.

Which one of the following is secondary air pollutant?

Secondary pollutants include ozone, which is formed when hydrocarbons (HC) and nitrogen oxides (NOx) combine in the presence of sunlight. NO2, which is formed when NO combines with oxygen in the air. Acid rain, which is formed when sulfur dioxide or nitrogen oxides react with water, sulfuric acid etc.