Table of Contents
What is primary and secondary pollutants with example?
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 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.
What pollutants are secondary pollutants?
Secondary pollutants are pollutants which form in the atmosphere. These pollutants are not emitted directly from a source (like vehicles or power plants)….Secondary pollutant
- Ozone (O3)
- Sulfuric acid and nitric acid (component of acid rain)
- Particulate matter.
- Nitrogen dioxide (NO2)
- Peroxyacyl nitrates (PANs)
- and more.
Is it a primary or secondary pollutant?
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 is not a primary pollutant?
Solution(By Examveda Team) 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. Similarly, sulphuric acid is also not a primary pollutant.
What are 5 primary air pollutants?
5 Major Outdoor Air Pollutants
- Ozone (O3)
- Nitrogen Oxides (NOx)
- Carbon Monoxide (CO)
- Sulfur Dioxide (SO2)
- Particulate Matter (PM10 and PM2.5)
What is tertiary pollutant?
The tertiary treatment is one or several treatment units added to remove certain pollutants such as phosphorus and nitrogen from the wastewater after the secondary treatment; From: Water Conservation and Wastewater Treatment in BRICS Nations, 2020.
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.
What is a secondary air pollution?
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.
Which of the following is not a secondary air pollutant?
The correct answer is Sulphur dioxide.
Which of the following is not a primary pollutant?
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.
Is CFC secondary pollutant?
Other Primary Pollutants Another category of the primary air pollutants is toxic metals such as Cadmium, Lead and Copper, which are products of the Industrial processes. The Chlorofluorocarbons (CFCs) are proved to be harmful to the ozone layer emitted from products currently banned from use.
Is CO2 secondary pollutant?
Secondary pollutants like ozone and carbon dioxide (CO2), a greenhouse gas, come from carbon monoxide.
Which is not a primary air pollutants?
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.
Is CO2 a primary pollutant?
Carbon dioxide(CO2) is a primary air pollutant emitted directly from a source.
Which among the following is a primary air pollutant?
A primary pollutant is an air pollutant emitted directly from a source e.g., carbon monoxide (CO), oxides of nitrogen (NOx, NO), sulfur oxides (SOx), SO2, volatile organic compounds (VOCs) and particulate matter (dust, ash, salt particles).