International Day for the Preservation of the Ozone Layer is observed on 16 September

The day is observed to spread awareness among people about the depletion of the Ozone Layer and search for possible solutions to preserve it.
Sheena

Updated: Sep 16, 2020 03:01:09 pm

International Day for the Preservation of the Ozone Layer is observed on 16 September

16 September 2020 Current Affairs:International Day for the Preservation of the Ozone Layer is observed on 16 September every year. The day is observed to spread awareness among people about the depletion of the Ozone Layer and search for possible solutions to preserve it.

Theme:
The theme of 2020 International Day for the Preservation of the Ozone Layer is "Ozone for life: 35 years of ozone layer protection". This year marks the 35 years of the Vienna Convention and 35 years of global ozone layer protection. The Ozone layer shields Earth from most of the sun’s harmful ultraviolet (UV) radiation.

Ozone:
Ozone is a form of oxygen (O2) with the chemical formula O3. Oxygen is vital to life on earth. Ozone constitutes a very small part of the atmosphere. Most ozone resides high up in the atmosphere, between 10 and 40km above Earth's surface called the stratosphere. This layer contains about 90% of all the ozone in the atmosphere. This Ozone layer absorbs some of the Sun’s biologically harmful ultraviolet (UV) radiation. The ozone layer is beneficial as it removes pollutants from the atmosphere.  In the late 1970s, Scientists discovered a hole in the Ozone layer. It was caused by ozone-depleting gases (ODSs) like Aerosols, Sterilants and Carbon Tetrachloride, Foams, Halons, HCFCs (hydrochlorofluorocarbons), Methyl bromide, Solvents, Coatings & Adhesives, among others.

History:
On 19 December 1994, the UNGA (United Nations General Assembly ) proclaimed 16 September as the International Day for the Preservation of the Ozone Layer. The day commemorates the date when the Montreal Protocol on Substances that Deplete the Ozone Layer was signed in 1987. Montreal Protocol aims to protect the O3 layer by taking various possible measures to control total global production and consumption of substances that deplete it with an aim to eliminate on the basis of developments in scientific knowledge and technological information.
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