Ozone layer project .pdf

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1. Ozone layer

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 chlorofluorocarbons
(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. •Chlorofluorocarbons and
hydrochlorofluorocarbons are fully or
partly halogenated paraffin hydrocarbons
that contain only hydrogen ,chlorine, and
fluorine , produced as volatile derivative of
methane, ethane, and propane. They are
also commonly known by the DuPont
brand name Freon.
•The means of chlorofluorocarbons are:
Refrigerators , Air conditioners, spray
paints etc.
Chlorofluorocarbons

4. Status of Ozone Layer.
•Present status of ozone layer is A significant
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
chlorofluorocarbon 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 fit as
earlier.

5. Made by Shabd Marwah
Class :- 9-B
Roll no:- 20