2. Depletion of ozone layer.
• One of the major reason due to
which depletion of ozone occur
is due to the presence of the gas
named chloro
f
luorocarbons
(CFCs) in our environment.
• Which, then mixes with other
gases such as (carbon- Di- oxide ,
nitrogen -di- oxide ,sulphur - di-
oxide. Etc. )and helps them to
depletion ozone layer.
3. • Chloro
f
luorocarbons and
hydrochloro
f
luorocarbons are fully or
partly halogenated para
ff
in hydrocarbons
that contain only hydrogen ,chlorine, and
f
luorine , produced as volatile derivative of
methane, ethane, and propane. They are
also commonly known by the DuPont
brand name Freon.
• The means of chloro
f
luorocarbons are:
Refrigerators , Air conditioners, spray
paints etc.
Chloro
f
luorocarbons
4. Status of Ozone Layer.
• Present status of ozone layer is A signi
f
icant
reduction in the consumption of ozone-
depleting substances (ODS) has been
achieved by the EEA-33 countries since 1986.
This reduction has largely been driven by the
1987 United Nations Environment
Programme (UNEP) Montreal Protocol.
• But, this year due the pandemic (Corona
virus) COVID 19 the lockdown was
conducted because of which pollution level
in environment was also dropped as a result
chloro
f
luorocarbon gas also was unable to
mix with other gasses as a result ozone layer
also start healing itself.
• So as if now ozone is also healed and is
f
it as
earlier.
