Where does the ozone hole usually form

Subject : Geography

Question:

Where does the ozone hole usually form?

Expert Verified Solution:

The ozone hole most commonly forms over the Antarctic region, particularly during the Southern Hemisphere’s spring (September to November). This seasonal thinning of the ozone layer is a result of complex interactions between chlorine and bromine compounds, which were largely released by human-made chemicals like chlorofluorocarbons (CFCs). In the cold Antarctic stratosphere, these compounds are activated by sunlight, leading to significant ozone depletion. Although similar, less severe ozone depletion can occur over the Arctic region, it is less pronounced due to different climatic conditions and atmospheric dynamics.