Botany - Environmental Issues Question with Solution | TestHub

Smoke is formed by a combination of smoke and fog. Photochemical smog resulted from a combination of smoke, hydrocarbons, nitrogen oxide, oxygen along with UV light resulting in the formation of peroxyacetyl nitrate (PAN), ozone and nitrogen oxides consequently leading to reddish-brown smog. Los Angeles was the first place to have experienced the effects of photochemical smog hence also called as Los Angeles smog. Ozone causes damage to mucus membranes whereas PAN damages rubber and inhibits chlorophyll formation in plants