Is air pollution primary or secondary?
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 is an example of secondary pollution?
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 a secondary air pollution?
Nitrogen dioxide and other nitrogen oxides react with other chemicals in the air to form other pollutants, known as secondary pollutants. These secondary pollutants include ozone, particulate matter, acid rain, and other toxic chemicals.
What is secondary water pollution?
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 to form a new pollutant.
What are primary and secondary air pollutants with examples?
Examples of primary pollutants include sulfur dioxide (SO2), carbon monoxide (CO), nitrogen oxides (NOX), and particulate matter (PM). Examples of secondary pollutants include photochemical oxidants (ozone, nitrogen dioxide, sulfur trioxide) and secondary particulate matter.
Which of the following is secondary air pollutants?
Detailed Solution
| Primary Pollutants | Secondary Pollutants |
|---|---|
| Carbon monoxide (CO) Oxides of nitrogen (NOx, NO) Sulfur oxides (SOx) Volatile organic compounds (VOCs) highly Particulate matter (dust, ash, salt particles) | Ozone PAN Smog Formaldehyde Sulphuric Acid |
Which of the following is known as secondary air pollutant?
3. Which of the following is called the secondary air pollutant? Sol: (b) Ozone.
Which of the following is example of secondary air pollutant?
Examples of secondary air pollutants are ozone, formaldehyde, PAN (peroxy acetyl nitrate), Smog (photochemical or smoke induced), acid mist, etc.
Is CO2 secondary pollutant?
Secondary pollutants like ozone and carbon dioxide (CO2), a greenhouse gas, come from carbon monoxide.
What are examples of primary and secondary pollutants?
Which of the following is not a secondary pollution of air pollution?
The correct answer is Sulphur dioxide.
Is CO2 a secondary pollutant?
What are the 6 common air pollutants?
Particle Pollution (particulate matter)
What are the major sources of primary air pollutants?
– 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. – natural sources – such as wind-blown dust, wildfires, and volcanoes.
What are the different kinds of air pollutants?
criteria air pollutants These pollutants are particulate matter, photochemical oxidants (including ozone), carbon monoxide, sulfur oxides, nitrogen oxides and lead.
What is an example of primary air pollution?
Sulphur dioxide (S0 2) produced from burning of coal mainly in thermal power plants. It causes smog and acid rain.