ozone layer depletion

1. OZONE LAYER DEPLETION
Presented By: komal Zulfiqar

3. Introduction
Protective blanket ofearth.
Present in lower portion ofstratosphere.
Absorbs most of sun’s Ultra violet radiations.
Drop in ozone levels in atmosphere leadto
“ozone holes”.

4. Introduction
We will be discussing:
How ozone layer getting depleted ?
What are the effects of the ozone layer depletion ?
How we can resolve these problem?
Why we chose this:
Spread awareness on extent of problem: Prime reason leading to globalwarming.
What is at stake!
To initiate efforts on individual level being responsible citizen of country.
To secure life of present and future generations by making this planet livable for all of us.
Group Members- Rajvinder and Sarbrinder.

5. Ozone depletion, gradual thinning of
Earth's ozone layer in the upper
atmosphere caused by the release of
chemical compounds containing
gaseous chlorine or bromine from
industry and other human activities.
The thinning is most pronounced in
the polar regions, especially over
Antarctica

6. Causes
Release of harmful gaseslike:
CFC, HCFC, Methyl Bromide
o Used in Air-conditioners, Refrigerators, fire
extinguishers.
VOC(Volatile organiccompounds)
o Emitted by vehicles.
Natural Disasters: Volcanic eruption (Carlowicz,2013)

7. Causes
Sun Spots and Stratosphere winds.
Low Temperature.
Harmful gases
reach
stratosphere
Get Exposed to
UV rays
Breakdown to free
chlorine which
reacts with ozone
causing ozone
depletion

9. Effects
Damage to skin by depletion of the ozone layer:
 Main factor in influencing development of Skin Cancer.
 Pre-mature aging of the skin.
Effects on plants and animals:
 Disturb photosynthesis process; lower yield from plant and cereal crops.
 Inhibit growth process of flora and fauna; thus food supply.
 Decreasing plankton population which is primary
source of food in marine ecosystem.

10. Effects
Effects on eye sight:
 Damage lens and cornea.
 Fatal diseases like cataracts in particular and even loss of eyesight.
In General:
 Rise in global temperature.
 Sunburn issue with frequent exposure to sun.
 Weaken immune system lead to lower resistance to diseases(Canada, 2015).

13. Solutions
Exposure to sun with precautions:
 Must use sun screen to protect skin.
 Must use sun glasses to protect eyes.
Plant more trees and avoid usage of pesticide.
Buying and using recycled products.(Austin,2015)

14. Solutions
Harmful gases ban:
 Alternate to CFC,HCFC must be introduced by
the manufacturers of AC, Fridgeetc.
 Protocols should be introduced on provincial and federal level
to keep check on use of such gases during industrialprocesses.

15. Protections of ozone layer:.
 Limit private vehicle driving. ...
 Use eco-friendly household cleaning products. ...
 Avoid using pesticides and prevent ozone depletion. ...
 Developing stringent regulations for rocket launches. ...
 Banning the use of dangerous nitrous oxide. ...
 Avoiding Ozonolysis Purifiers.

16. Conclusion
Harmful gases are the main cause of Ozone
depletion.
It risk the lives of livingbeing.
Protocols implemented and results arebetter..
Volunteer action for future generations.
Whole word must join hand and spread awareness
about the issue of the ozone layer depletion.
Your small efforts could make a big difference.

17. Lasting Thought
Lets come together and make this planet better place to live.
Use the precious resources given by nature.
Lets take a pledge not to destroy our home our earth.