What Are The Secondary Precursors Of Photochemical Smog
Answers
Answer:
Photo chemical smog occurs in warm and dry climate by the action of sunlight on the oxides of nitrogen. NO2 and O3 are strong oxidizing agents. They react with unburnt hydrocarbons to produce formaldehyde, acrolein, and PAN i.e peroxyacetyl nitrate. These are the secondary compounds of photochemical smog.
Answer:
• An important secondary precursor of photochemical smog is ozone.
Explanation:
• Smog is made from works Smoke + Fog, which first appeared during winters in London during Industrial Revolution due to increase burning of coal.
• But Photochemical smog is formed when the primary pollutants present in the air reacts with other pollutants in presence of sunlight to form a fog like condition.
• The important secondary precursor in the photochemical smog is ozone.
• Ozone is a highly poisonous gas which normally is not found in the lower atmosphere, but in case of photochemical smog, ozone is produced when the hydrocarbons released from vehicular exhausts reacts with nitrogen oxides.