Quick Answer: What Is Secondary Pollution?

Which 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 sulfur dioxide a primary or secondary pollutant?

Sulfur dioxide is also a natural byproduct of volcanic activity. 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.

Which is more harmful primary or secondary pollutants?

2) Which are more harmful primary or secondary pollutants? Ans- They emit carbon monoxide which is one of the biggest contributors (by weight) to air pollution. Though these statistics are horrifying, secondary pollutants can be more harmful and severe to human health than primary pollutants.

Is benzene a primary or secondary pollutant?

Oxides of Carbon Then, we have primary pollutants such as Volatile Organic Compounds or VOCs which are methane (CH4) and non-methane (NMVOCs). Methane is a GHG which contributes to Global Warming. The NMVOCs include the aromatic compounds such as Benzene, Toluene, Xylene which are proved or suspected carcinogens.

How do secondary pollutants harm the environment?

Secondary pollutants harm the environment by making acid rain and smog. Acid rain can dissolve hard materials (rocks, buildings, metals). Smog poses a human health hazard. Greenhouse gases can result in global warming, which can change many areas around the world.

Which is the major source of Sulphur dioxide?

Sulfur dioxide (SO2) is a gas primarily emitted from fossil fuel combustion at power plants and other industrial facilities, as well as fuel combustion in mobile sources such as locomotives, ships, and other equipment.

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.

Is smog a secondary pollutant?

Smog formation in general relies on both primary and secondary pollutants. Primary pollutants are emitted directly from a source, such as emissions of sulfur dioxide from coal combustion. Secondary pollutants, such as ozone, are formed when primary pollutants undergo chemical reactions in the atmosphere.

Is no2 a secondary pollutant?

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.

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.

What is the difference between primary and secondary air pollutants What are some examples of each?

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.

How secondary pollutants are harmful for humans and environment?

Secondary pollutants are Photochemicals, Ozone, Sulphuric acid, etc. Pollutants in any means are damaging and harming humans and other living things. Due to inhaling primary or secondary pollutants, humans are getting respiratory tract infections, acid rain like problems.

What type of pollution does sulfur dioxide cause?

Environmental effects When sulfur dioxide combines with water and air, it forms sulfuric acid, which is the main component of acid rain. Acid rain can: cause deforestation. acidify waterways to the detriment of aquatic life.

What is the difference between primary and secondary sources of particulate matter?

Particle pollution can come from two different kinds of sources — primary or secondary. Primary sources cause particle pollution on their own. For example, wood stoves and forest fires are primary sources. Secondary sources let off gases that can form particles.