The ozone layer protects life on earth by filtering out harmful, cancer-causing ultraviolet radiation from the sun. An anti-pollution device that uses a spray to remove pollutants from a stream of air passing through a smokestack. A plant where metals are melted to remove impurities. Originally meaning a combination of smoke and fog, smog now refers to air pollution produced by the reaction of hydrocarbons and nitrogen oxides in sunlight. Smog is mostly made up of ozone.
Industrial solvents are chemicals used in production processes.
Examples include painting and coating automobiles, cleaning machined metal parts, printing and dry cleaning processes.