Ozone is one of the five major pollutants measured on a daily basis by the U.S. Environmental Protection Agency in order to determine the Air Quality Index. There are two kinds of ozone: good ozone and bad or ground ozone. The good kind occurs naturally in the upper atmosphere and helps shield us from ultraviolet rays from the sun. The bad kind is formed in the lower atmosphere, near ground level. Ground-level ozone is formed when pollutants from cars, power plants, boilers, refineries, and other sources react chemically to sunlight. Ground-level ozone is mainly a concern during the summer months … Continue reading →