[Challenge:Future] O3 Redemption
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The document discusses the depletion of the ozone layer by chlorofluorocarbons (CFCs) released from coolant systems and other sources. It notes that a single atom can trigger ozone depletion for up to 2 years. It lists several free radical catalysts like chlorine, bromine, and hydroxyl radicals that are liberated by UV rays and can destroy ozone. It suggests potential causes of ozone layer depletion including releases from supersonic aircrafts, solar events, or substances from space. The consequences of increased UV radiation reaching the earth are described, including effects on ecosystems, food supplies, and increased skin cancer rates in humans.
[Challenge:Future] O3 Redemption
- 1. Surya Jaisankar Rakshith Kunchum G.Anirudh IIT ROORKEE INDIA
- 2. Decimation of Ozone layer over a region OZONE LAYER is the protective bubble around the earth that shields the harmful Ultra Violet rays With every coolant system technologically built so far, we are depleting ozone layer bit by bit by releasing CFCs. BIGGER PICTURE When a single atom can trigger and carry out depletion upto 2 years, Overriding the tiny paced depletion, we present the sudden and chronic erosion of the O3 layer! Cl + O3 → ClO + O2 ClO + O3 → Cl + 2 O2 → ..... ........
- 3. Ozone can be destroyed by a number of free radical catalysts. (OH·) (NO·) (Cl·) (Br·)(F.). UV Rays liberate them from their active compounds. Possibilities?? • An alien spacecraft releases these harmful compounds(radicals) in exorbitant amounts. SUPERSONIC AIRCRAFTS ARE KNOWN TO BE RELEASING NO. • Extra-terrestrial events along the lines of solar flares and solar wind ,resulting in the release of these decimating radicals. OH RADICALS HAVE BEEN FOUND IN IN MANY STARS • OR Simply release of a catalyzing substance from space that proliferates the existing depletion due to man-made sources!!! LETS SEE THE CONSEQUENCES
- 4. IF THE UV RADIATIONS FIND THEIR WAY TO THE EARTH, they will result in:- Disruption right at the foundation of the food chain, which leads to a cumulative effect on the ecosystem. UV radiations kill Phytoplankton. Less phytoplankton means less food for the sea animals to eat. It is estimated just a 16 % ozone depletion indirectly leads to a loss of about 7 million tons of fish per year. The human food supply already strained due to demands of an ever increasing population, reductions resulting from UV damage may be disastrous to many people, especially the poor and indigenous. IMAGINE THE EFFECT OF DECIMATION OF OZONE AND THE CONSEQUENCES Extremely high UVA radiations exposure leading to skin cancer. Whatever sunscreen solutions we have right now can only overcome the problem of UVB radiations but not UVA. The health risks are Basal and squamous cell carcinomas, malignant melanoma, cataract, etc, etc.
- 5. Experts predict that an estimated 10 % reduction in the ozone layer will result in a 25 % increase in non-melanoma skin cancer rates It also damages the DNA of marine bacteria and the larvae of starfish and urchins. And it even alters ocean chemistry, creating potentially dangerous substances in the water itself and cause biological damage by oxidizing biological molecules.
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