WebMay 14, 2024 · Explanation: UV induced cleavage of the C-Cl bond in the chlorofluorocarbon molecule forms a free radical centre in the molecule plus a chlorine atom. The chlorine … WebOct 7, 2024 · 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 …
Ozone Layer - Destruction of the Ozone Layer - The Causes
WebThe agents, particularly chemical, which affect the amount of ozone present in the atmosphere have been a source of concern for more than 20 years. This has been reinforced by the dramatic decline of stratospheric ozone levels first measured in Antarctica and now apparent worldwide. WebCFCs are the main cause of the hole in the ozone layer. The 1990 Montreal Protocol called for the phasing out of CFCs in refrigeration, insulation and fire fighting equipment. An EC regulation has banned the production of CFCs since 1997. Manufacturers now use other blowing agents in foam insulation products. scott barclay wi
Chlorofluorocarbons are responsible for - BYJU
WebOzone depletion Man-made compounds such as chlorofluorocarbons (CFCs), hydrofluorocarbons (HCFCs) and halons destroy ozone in the upper atmosphere (stratosphere). The stratospheric ozone layer makes life possible by shielding the earth from harmful ultraviolet (UV-B) rays generated from the sun. WebWhen chlorofluorocarbons (CFC) drift upwards towards the stratosphere, they come in contact with the Ozone layer. This leads to a chemical reaction where the CFC molecules … WebOct 23, 2024 · Ozone molecules in the stratosphere are constantly being produced and destroyed by different types of UV radiation from the sun. Normally, the production and destruction is balanced, so the amount of ozone in the … premium tea wholesalers