the main component of photochemical smog is
The main component of photochemical smog
Answer:
Photochemical smog is primarily composed of ozone (O$_3$) and other pollutants formed through a photochemical reaction involving sunlight, nitrogen oxides (NO$_x$), and volatile organic compounds (VOCs). These primary pollutants undergo a series of chemical reactions in the presence of sunlight to form secondary pollutants like ozone, peroxyacetyl nitrate (PAN), aldehydes, and other harmful substances. The main component contributing to the formation of photochemical smog is ozone, which is created through the interaction of sunlight with these precursor pollutants, especially in urban areas with high traffic and industrial activities.