Q)How is photochemical smog formed and what are its effects?
Ans)Photochemical smog, a secondary pollutant, results when two pollutants, nitrogen oxide and hydrocarbons found in automobile extracts, react with one another in the presence of sunlight to produce nitrogen dioxide, ozone and a compound called PAN(Peroxylacetyle Nitrate), which then appears as a Yellowish Brown Haze. Breathing ozone affects the respiratory and nervous system.It causes respiratory distress affects the eye membranes and simulates tears.It also causes headaches.Ozone damages rubber articles, textiles and discolors paintings. It has been found that smog is harmful to timber. PAN is especially damaging to plants. Plants exposed to PAN exhibit leaf mottling and reduced growth.
Ans)Photochemical smog, a secondary pollutant, results when two pollutants, nitrogen oxide and hydrocarbons found in automobile extracts, react with one another in the presence of sunlight to produce nitrogen dioxide, ozone and a compound called PAN(Peroxylacetyle Nitrate), which then appears as a Yellowish Brown Haze. Breathing ozone affects the respiratory and nervous system.It causes respiratory distress affects the eye membranes and simulates tears.It also causes headaches.Ozone damages rubber articles, textiles and discolors paintings. It has been found that smog is harmful to timber. PAN is especially damaging to plants. Plants exposed to PAN exhibit leaf mottling and reduced growth.
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