Which of the following is a secondary pollutant?
Correct answer: A. PAN
- A. PAN
- B. Aerosol
- C. CO
- D. CO 2
Explanation
The formation of secondary pollutants is influenced by a combination of factors, including the presence of primary pollutant emissions, meteorological conditions, sunlight, and the concentration of precursor compounds in the atmosphere. The secondary pollutants are more toxic than the primary ones. Nitrogen oxides and hydrocarbons react photochemically to produce peroxyacyl nitrates and ozone. Peroxyacyl nitrates are produced due to photochemical reactions between nitrogen oxides and unsaturated hydrocarbons.
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About Man and His Environment
Ecosystems include biotic and abiotic components, food chains and webs, energy flow, nutrient cycles, populations and ecological relationships. Pollution and conservation cover air, water, soil and noise pollution, their effects on organisms, biodiversity loss, protected areas, sustainable resource use and methods for reducing environmental damage.
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