Question

secondary air pollutants are produced by​

Answer 1

Answer:

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Explanation:

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. Pollutants that are emitted into the environment from a source are called primary pollutants.

Secondary pollutants are concerning as they can be formed from many different compounds. The phenomena of photochemical smog (seen in high density cities, see Figure 1) is a result of the interactions of primary pollutants with other molecules in the air such as molecular oxygen, water and hydrocarbons. These combine to form yellow clouds that are harmful to humans. Photochemical smog is made up of various secondary pollutants like ozone, peroxyacyl nitrates (PANs), and nitric acid.

Different types of secondary pollutants include:

1.Ozone (O3)

2.Sulfuric acid and nitric acid (component of acid rain)

3.Particulate matter

4.Nitrogen dioxide (NO2)

5.Peroxyacyl nitrates (PANs)

and more

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Answer 2

Answer:

Explanation:

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.