Ozone holes are more pronounced at the

Ozone holes are most pronounced at the poles, particularly over Antarctica. This phenomenon occurs due to unique meteorological conditions during the polar winter, where a polar vortex traps air and allows temperatures to drop low enough for the formation of Polar Stratospheric Clouds (PSCs) [4]. These clouds provide surfaces for chemical reactions that release chlorine, which rapidly destroys ozone when sunlight returns in the spring [2]. While the most significant depletion is recorded over the Antarctic continent during September and October, similar depletion has also been observed over the Arctic [5]. In contrast, ozone is naturally produced more abundantly in the tropics due to direct sunlight, and the atmospheric circulation patterns generally move ozone from the equator toward the poles [6]. Therefore, the severe thinning known as the 'ozone hole' is a polar phenomenon [3].

Sources

1. [1] Environment and Ecology, Majid Hussain (Access publishing 3rd ed.) > Chapter 6: Environmental Degradation and Management > Antarctic Ozone Hole > p. 14
2. [4] Environment, Shankar IAS Acedemy .(ed 10th) > Chapter 19: Ozone Depletion > 19.1.5. Why is the Ozone Depletion predominant at the Antarctic? > p. 270
3. [2] Environment and Ecology, Majid Hussain (Access publishing 3rd ed.) > Chapter 6: Environmental Degradation and Management > Antarctic Ozone Hole > p. 13
4. [5] Environment and Ecology, Majid Hussain (Access publishing 3rd ed.) > Chapter 6: Environmental Degradation and Management > Some Basic Facts about Ozone Depletion > p. 15
5. [6] https://www.cpc.ncep.noaa.gov/products/outreach/glossary.shtml
6. [3] Environment, Shankar IAS Acedemy .(ed 10th) > Chapter 19: Ozone Depletion > I E*rtm$ffimutHT > p. 271