A mixture of air pollutants produced in the lower atmosphere by the reaction of nitrogen oxides and hydrocarbons as they are struck by sunlight

Question

Quizplus · Accepted Answer

Photochemical smog is a mixture of air pollutants that is formed when nitrogen oxides and hydrocarbons react with sunlight in the lower atmosphere. It is a serious environmental problem in urban areas with high levels of traffic and industry.

A Mixture of Air Pollutants Produced in the Lower Atmosphere