Quick Answer: What Are Examples Of Primary And Secondary Pollutants?

What are the 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..

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.

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’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 Pan a primary pollutant?

PANs are a secondary pollutant since they form in the atmosphere after the emission of primary pollutants. Sources of the pollutants required to create PANs include motor vehicles, tobacco smoke, and the burning of fossil fuels.

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.

What is the difference between primary and secondary air pollutants quizlet?

Primary pollutants are harmful substances emitted directly into the air. 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.

What are primary and secondary air pollutants with examples?

Primary air pollutants: Pollutants that are formed and emitted directly from particular sources. Examples are particulates, carbon monoxide, nitrogen oxide, and sulfur oxide. Secondary air pollutants: Pollutants that are formed in the lower atmosphere by chemical reactions.

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.

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.

Which one of the following is not a secondary pollutant?

Primary pollutants are directly emitted from the sources. Examples of primary pollutants are carbon monoxide, carbon dioxide, sulphur dioxide and benzene etc. Secondary pollutants are not emitted directly.

How are primary and secondary pollutants harmful for humans and environment?

Primary pollutants are directly generated from human activities like from car, from ships, from construction work etc. … Secondary pollutants form due to mixing of primary pollutants and natural resources such as water, air etc. They are harmful like mixing of sulphuric acid susoended in air with rain to form acid rain .

Is Co a secondary pollutant?

Secondary pollutants are formed when primary pollutants interact with each other in the atmosphere. Carbon monoxide (CO) is a colourless, odourless, and very poisonous gas. It is formed as a by-product of incomplete combustion processes involving carbon based energy sources, such as the burning of petrol, coal or wood.

Is h2so4 a secondary pollutant?

Secondary pollutants include Sulfuric acid (H2SO4) which can cause respiratory problems. Nitrogen dioxide (NO2) which gives air a brownish coloration. Ozone (O3) which is a colorless gas, has a sweet smell, is an oxidizing agent, and causes irritation to the eyes.

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)

Is DDT a secondary pollutant?

It includes the DDT. The secondary pollutants are those which are not able to maintain their form in the environment. It includes the peroxyacyl nitrate which is formed due to the reaction between the primary pollutants like the hydrocarbons and nitrogen oxides. … It includes the DDT, fungicides etc.

Is hno3 a secondary pollutant?

Nitric acid (HNO3) is a secondary pollutant formed in the troposphere primarily from the oxidation of NOx (NOx = NO + NO2) emitted from vehicle tailpipes and other combustion sources (for example, power generation). … Once formed, HNO3 is lost primarily by wet and dry deposition.