ODS stands for “Ozone-Depleting Substances.” These are chemicals that contribute to the depletion of the ozone layer in the Earth’s stratosphere. The ozone layer is crucial for protecting life on Earth by absorbing the majority of the sun’s harmful ultraviolet (UV) radiation. Common ODS include: 1. **Chlorofluorocarbons (CFCs)**: Used in refrigeration, air conditioning, foam blowing, and as solvents. 2. **Halons**: Used in fire extinguishers. 3. **Carbon Tetrachloride**: Used in industrial applications. 4. **Methyl Chloroform (1,1,1-Trichloroethane)**: Used as a solvent. 5. **Hydrochlorofluorocarbons (HCFCs)**: Used as transitional replacements for CFCs. 6. **Methyl Bromide**: Used as a fumigant for pest control in agriculture. The use and production of many ODS are regulated by international agreements, primarily the Montreal Protocol, which aims to phase out the production and consumption of these substances to protect the ozone layer.
ODS
