Depletion of ozone

Description of Your EVS Project: Ozone Layer Depletion Your project explains the environmental issue of ozone layer depletion, a process in which the protective ozone present in the stratosphere becomes thinner due to harmful human-made chemicals. It highlights the importance of ozone in absorbing the Sun’s harmful ultraviolet (UV) radiation, which protects humans, animals, and plants from health hazards like skin cancer, cataracts, immune system suppression, and crop damage. The project also describes how various pollutants—especially chlorofluorocarbons (CFCs), halons, and other ozone-depleting substances (ODS)—break down ozone molecules. When these chemicals reach the upper atmosphere, they release chlorine and bromine atoms that rapidly destroy ozone, creating the well-known ozone hole over Antarctica. Your document covers: 1. Meaning of Ozone Layer & Its Role Explains what ozone (O₃) is Its position in the atmosphere Its role as Earth’s UV shield 2. Causes of Ozone Layer Depletion Release of CFCs from refrigerants, ACs, and aerosols Industrial chemicals Rocket launches and nitrogen oxides 3. Effects on Living Beings & Environment Increased UV radiation reaching Earth Skin diseases, eye problems, immune issues Reduced plant growth and marine ecosystem damage Global climate imbalance 4. Global Measures to Protect the Ozone Layer The Montreal Protocol banning CFCs Promotion of eco-friendly alternatives Global monitoring of ozone levels 5. Solutions & Precautionary Steps Using CFC-free products Proper disposal of old refrigerators and ACs Planting more trees Reducing industrial emissions