Yes.
Ozone layer
About 9ppm, peak.
See "What is the ozone layer?" in the "Related questions" section below.
The highest concentration is located in the lower stratosphere.
The largest concentration of ozone is in the ozone layer. It is a pool of ozone molecules which are present in the atmosphere.
There is variable concentration of ozone on earth. The lowest concentration is at the poles.
The ozone concentration is maintained in atmosphere by UV. They create and deplete ozone.
As chlorine concentration rises, the concentration of ozone in the atmosphere decreases. This is because chlorine reacts with ozone, breaking it down into oxygen molecules, thereby depleting the ozone layer.
The concentration of ozone keeps on changing with time. It depends on the natural and man made ozone depleting facors.
Ozone level is the concentration of ozone. It should not be very low.
The layer of the Earth's atmosphere known as the ozone layer contains the highest natural concentration of ozone. This layer is located approximately 10-50 kilometers above the Earth's surface and plays a crucial role in absorbing and filtering out harmful ultraviolet radiation from the sun.
It is the ozone layer. It has high concentration of ozone gas.