Which atmospheric layer contains the ozone?

The stratosphere is the atmospheric layer that contains the ozone layer, which is situated approximately 10 to 30 miles above the Earth's surface. This layer is critical for absorbing the majority of the sun's harmful ultraviolet (UV) radiation, protecting living organisms on Earth. The ozone within the stratosphere forms a concentrated layer, and its presence is essential for maintaining the overall health of ecosystems and human health by preventing excessive UV exposure which can lead to skin cancers and other health issues.

The troposphere, which lies below the stratosphere, is where weather occurs and clouds form, but it contains very little ozone compared to the stratosphere. The mesosphere above the stratosphere is characterized by decreasing temperatures and does not have significant ozone concentrations. The exosphere, the outermost layer, is where the atmosphere gradually fades into space and contains very sparse amounts of gas, including some oxygen molecules, but not ozone in any noteworthy amounts. The stratosphere’s unique role highlights its importance in environmental management and policies aimed at protecting the ozone layer for the benefit of global health and safety.