3. Differentiate between primary and secondary air pollutants. Give one example of each.
Answers
Answer:
these pollutants are formed when 2 or more primary pollutants react with each other in the atmosphere. An example of this can be seen when nitrogen oxide and hydrocarbons react with sunlight, resulting in ozone. ... Other secondary pollutants include: smog, nitrogen dioxide, peroxyacyl nitrates, and sulfuric acid.
Explanation:
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Answer:1. Primary pollutants (PPs) are passed into environment in the form they are produced, whereas secondary pollutants (SPs) develop as a result of interaction of primary pollutants and environmental constituents.
2. PPs belong to various categories like particulate, aerosol, reduced, oxidized whereas SPs are generally oxidizing.
3. PPs are less toxic than SPs.
4. PPs do not show synergism, but SPs show.
5. PPs persist in the form they are released in the environment, whereas SPs are modified products.
6. CO2, SO2 and NO2 are examples of PPs, whereas SO3, O3 and HNO3 are examples of SPs.