World Ozone Day - Preserving the Ozone Layer and Our Planet
World Ozone Day, observed on September 16, is a global initiative to raise awareness about ozone layer depletion and the importance of protecting it. The ozone layer, located in the stratosphere around 15-30 km above the Earth's surface, shields life on our planet from harmful UV radiation. Understanding the significance of the ozone layer's role in safeguarding our health and environment is crucial to fostering sustainable habits. Let's join hands to preserve this vital environmental asset and ensure a safer future for all.
Download Presentation
Please find below an Image/Link to download the presentation.
The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author.If you encounter any issues during the download, it is possible that the publisher has removed the file from their server.
You are allowed to download the files provided on this website for personal or commercial use, subject to the condition that they are used lawfully. All files are the property of their respective owners.
The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author.
E N D
Presentation Transcript
A WARM WELCOME TO ONE & ALL SEPTEMBER 16 Prepared and Presented by Social Science Dept.
TOD A Y IS SE PTE M B E R 16 2021 A N IN TE RN A TION A L D A Y FOR TH E PRE SE RV A TION OF TH E OZON E L A YE R
THE UNITED NATIONS GENERAL ASSEMBLY ON 23 rd JANUARY 1995 PROCLAIMED 16th SEPTEMBER AS THE WORLD OZONE DAY
2021 THEME OF THE CELEBRATION IS MONTREAL PROTOCOL - KEEPING US, OUR FOOD AND VACCINES COOL
THE WORLD OZONE DAY OFFERS AN OPPORTUNITY TO FOCUS GLOBEL ATTENTON AND ACTION ON THIS VITAL ENVIORMENTAL ISSUE
WOLD OZONE DAY IS OBSERVED EVERY YEAR TO SPREAD AWARENESS AMONG PEOPLE ABOUT THE DEPLETION OF OZONE LAYER AND FIND POSSIBLE SOLUTIONS TO PRESERVE IT
WHAT IS OZON LAYER IT IS COMMON TERM FOR THE HIGH CONCENTRATION OF OZONE FOUND IN THE STRATOSPHERE AROUND 15 30 KM ABOVE THE EARTH S SURFACE
WHAT IS OZON LAYER Ozone (O3) is a highly reactive gas whose molecules are comprised of three oxygen atoms.
IT COVERS THE ENTIRE PLANET AND PROTECTS LIFE ON EARTH BY ABSORBING HARMFUL ULTRAVIOLET RADIATION FROM THE SUN
OZON E TH E L IFE S A VE R Atmospheric ozone absorbs ultraviolet (UV) radiation from the sun, particularly harmful UVB-type rays. Exposure to UVB radiation is linked with increased risk of skin cancer and cataracts, as well as damage to plants and marine ecosystems. Atmospheric ozone is sometimes labeled as the "good" ozone, because of its protective role, and shouldn't be confused with tropospheric, or ground- level, "bad" ozone, a key component of air pollution that is linked with respiratory disease.
Ozones concentration in the atmosphere naturally fluctuates depending on seasons and latitudes, but it generally was stable till 1957. Groundbreaking research in the 1970s and 1980s revealed signs of trouble.
Ozone depletion Ozone depletion consists of two related events observed since the late 1970s: 1. a steady lowering of about four percent in the total amount of ozone in Earth's atmosphere (the ozone layer), and a much larger springtime decrease in stratospheric ozone around Earth's polar regions. 2. The latter phenomenon is referred to as the ozone hole. There are also springtime polar tropospheric ozone depletion events in addition to these stratospheric events.
CAUSES OF OZONE HOLE 1. MANUFACTURED CHEMICALS 2. MANUFACTURED HALOCARBON REFRIGERANTS 3. SOLVENTS 4. PROPELLANTS 5. FOAM BLOWING AGENTS (CHLORO FLURO CARBONS OR CFC)
Ozone-Depleting Substances - ODS When chlorine and bromine atoms come into contact with ozone in the stratosphere, they destroy ozone molecules. One chlorine atom can destroy over 100,000 ozone molecules before it is removed from the stratosphere. Ozone can be destroyed more quickly than it is naturally created. Some compounds release chlorine or bromine when they are exposed to intense UV light in the stratosphere. These compounds contribute to ozone depletion, and are called ozone-depleting substances. (ODS)
E FFE C TS H A RM FU L E FFE C TS on TH E H U M A N H E A L TH , A N IM A L S E N VIRON M E N T A N D C ROPS , PL A N TS and M A R IN E L IFE
SOL U TION S M ON TRE A L PR OTOC OL W A S PROPOSE D IN 1987 TO U N ITE TH E W ORL D TO C U T OU T PROD U C TION A N D IM PORT OF OZON E D E PL E TIN G SU B STA N C E S ( OD S)
A S A N IN D IVID U A L 5 easy steps to slow down its depletion 1. Maintain your ACs and refrigerators: ACs and refrigerators need regular maintenance as their malfunctioning can release CFCs (chlorofluorocarbons) in the air which is extremely harmful to the ozone layer.
5 easy steps to slow down its depletion 2. Reduce consumption of dangerous gases: While cleaning, working in chemical factories and at other places we should reduce the use of harmful gases like halogenated hydrocarbon, CFCs, methyl bromide and nitrous oxide. We can replace our cleaning agents with non-toxic products such as vinegar or bicarbonate.
5 easy steps to slow down its depletion 3. Carpooling and local shopping: We all know that air pollution is the biggest reason for ozone depletion. With a few changes in our lifestyle, we can preserve our civilization on Earth. People can use public transport instead of their private vehicles. It will not just protect the environment but also help you to save more money. People can also opt for local shopping. It will help in maintaining local merchants and reduce unnecessary travelling.
5 easy steps to slow down its depletion 4. Eco-friendly products: Try to use organic products in your daily life. Avoid packed food or foods with preservatives. 5. Practice 3 Rs: Reuse, Reduce and Recycle is one of the oldest Mantras of protecting the environment. Reduce the use of harmful products and gases. Reuse the products if possible. And, Recycle all possible wastes.
E A RTH W ITH OU T OZON E IS H OU SE W ITH OU T A ROOF .
