EVERYDAY SCIENCE

Detailed explanation-1: -Photochemical smog, often referred to as “summer smog", is the chemical reaction of sunlight, nitrogen oxides and volatile organic compounds in the atmosphere, which leaves airborne particles and ground-level ozone. Photochemical smog depends on primary pollutants as well as the formation of secondary pollutants.

Detailed explanation-2: -Photochemical smog is a mixture of pollutants that are formed when nitrogen oxides and volatile organic compounds (VOCs) react to sunlight, creating a brown haze above cities.

Detailed explanation-3: -Air pollution emitted from transportation contributes to smog, and to poor air quality, which has negative impacts on the health and welfare of U.S. citizens. Pollutants that contribute to poor air quality include particulate matter (PM), nitrogen oxides (NOx), and volatile organic compounds (VOCs).

Detailed explanation-4: -Photochemical smog is air pollution that forms from the interaction between chemicals in the air and sunlight. Smog forms when nitrogen dioxide, released in gasoline-engine exhausts, reacts with sunlight. A series of chemical reactions produces ozone and other compounds that form smog.

Detailed explanation-5: -Air pollution absorbs and disperses sunlight and thereby reduces the amount that reaches the Earth’s surface under the clear sky, reveals a study. The study published in the journal ‘Advances in Atmospheric Sciences, ’ also reported that the smaller the particles, the more harmful the impacts are.