September 16th is the date that was chosen by the United Nations General Assembly to be observed as the International Day for the preservation of the Ozone Layer. This Decision was made on December 19, 2000. So this day was chosen as the date to commemorate the date of signing, in 1987, of Montreal Protocol on substances that Deplete the Ozone Layer.
Ozone depletion is evident in the atmosphere, the resulting large springtime decrease in stratospheric ozone around Earth’s polar regions can be observed. The basic reasons behind this depletion of the Ozone are the substances that are known as Ozone Depleting Substances (ODS) which are Halocarbon, refrigerants, solvents, propellants, foam blowing agents (Chlorofluorocarbons, Halons, etc.)
The Ozone Depletion has created and induced worldwide concern over increased cancer risks and other damages that might happen because of Ozone’s Depletion. The most important task that Ozone is known for, that we are told about in our early years of studies that Ozone protects us from the Ultraviolet Rays (UV) by prohibiting it to pass through the Earth’s atmosphere. These Wavelengths cause sunburn, cataracts, and skin cancer. Thus, the Ozone is regal for humans and this whole scenario resulted in banning the production of CFCs, halons, and other ozone-depleting chemicals. The ban came into effect in 1989. Ozone levels stabilized by the mid-1990s and began to recover in the 2000s.
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