When pollutants in moist air are acted upson by sunlight there is a greater chance of forming what?

When pollutants in moist air are acted upon by sunlight, there is a greater chance of forming secondary pollutants, particularly ground-level ozone and photochemical smog. These reactions often involve volatile organic compounds (VOCs) and nitrogen oxides (NOx), which, in the presence of sunlight, undergo photochemical reactions that lead to the production of ozone. This can have harmful effects on human health and the environment.