Quick Answer: Is Pan A Secondary Pollutant?

What are examples of primary and secondary pollutants?

Primary pollutants include ammonia, sulfur dioxide, nitrogen dioxide and carbon monoxide.

Secondary pollutants include ground-level ozone, acid rain and nutrient enrichment compounds..

Which of the following is both primary and secondary air pollutant?

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.

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 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.

Which is the major source of Sulphur dioxide Mcq?

Which is the major source for sulphur dioxide? Explanation: Though emission of sulphur dioxide is peak during volcanic eruptions, its major source is during combustion of crude oil and coal for heat and power generation. 5.

What are two types of pollutants?

The two types of air pollutants are primary pollutants, which enter the atmosphere directly, and secondary pollutants, which form from a chemical reaction.

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 .

Which one is a secondary pollutant?

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.

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.

How is a secondary pollutant formed?

Secondary pollutants are pollutants which form in the atmosphere. … These pollutants are not emitted directly from a source (like vehicles or power plants). Instead, they form as a result of the pollutants emitted from these sources reacting with molecules in the atmosphere.

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.

What type of pollutant is DDT?

DDT is a persistent organic pollutant that is readily adsorbed to soils and sediments, which can act both as sinks and as long-term sources of exposure affecting organisms.