ABSTRACT

This chapter provides an interdisciplinary understanding of chemical substances and wastes and proposal of solutions. Ozone layer is that section of the earth’s atmosphere where the concentration of ozone is high. Ozone is present in the stratosphere at an altitude of about 10 to 50 km, especially with the highest density at a height of 20 to 25 km. Ozone hole refers to a decrease in the concentration of ozone during spring in the stratospheric ozone layer over Antarctica and the Arctic. It is said that the generation of ozone holes is caused by decomposition of chlorofluorocarbons or halon by ultraviolet rays, and the generated chlorine radicals destroy ozone as a catalyst. Only a trace amount of ozone is present in the atmosphere, but it absorbs most of the ultraviolet rays radiated from the sun and prevents ultraviolet rays from reaching the ground.