Industrial smog and photochemical smog are two different things. Industrial vs. photochemical smog Industrial smog comes from, clearly, industrial processes. Photochemical smog is a mixture of all other pollutants, but mostly VOC's and nitrous oxides. Industrial smog forms when smoke and sulfur emissions, from coal burning, combine with fog, under the right conditions. Industrial Smog Effects of Industrial Smog Effects of Acid Deposition Steps taken towards decreasing smog More commonly called acid rain, acid deposition alters chemistry in soil and “mobilizes” toxic metal ions to the soil, harming soil organisms by hindering their nutrient Although both appear to the eye as yellow-brown haze, they differ in two key ways: chemistry and composition. Choose from 28 different sets of industrial smog flashcards on Quizlet. Learn industrial smog with free interactive flashcards. Both industrial smog and photochemical smog are forms of air pollution. Photochemical smog is produced when sunlight dissociates nitrogen oxides in the atmosphere and they react with hydrocarbons. Smog is air pollution that reduces visibility.The term "smog" was first used in the early 1900s to describe a mix of smoke and fog.The smoke usually came from burning coal.Smog was common in industrial areas, and remains a familiar sight in cities today. It concentrates in urban areas and is formed from sulfur dioxide (mostly from burning coal), water droplets, and other particles such as dust. While the release of large quantities of air pollutants can form industrial smog, other factors have an important role in the severity of a smog outbreak. The result is a mixture of chemicals that cause skin, lung and eye irritation, and other health problems.