Tag: pollution

  • What is a photochemical smog?

    What is a photochemical smog?

    Photochemical smog forms when certain pollutants in the atmosphere react with sunlight. It mainly consists of ground-level ozone (O3), mixed with other toxic gases and particulate matter. This type of air pollution typically plagues urban areas, especially in cities with high levels of vehicle and industrial emissions. Here’s how photochemical smog forms: Emissions: It all…