SMOG AVENGER

A new type of smog known as photochemical smog was first described in the 1950's. This form of smog is created when sunlight hits certain pollutants in the air. Usually, photochemical smog is formed by the chemical reaction of sunlight with NOx and HC in the atmosphere, which leaves airborne particulate matter (PM) and ground-level ozone (O3).

Primary location: West Chicago United States