It contains high concentrations of ozone (O 3) in relation to other parts of the atmosphere, although still small in relation to other people in the s, while the average ozone concentration in Earth's atmosphere as a whole is about 0.3 parts per million.
It contains high concentrations of ozone (O 3) in relation to other parts of the atmosphere, although still small in relation to other gases in the stratosphere. The ozone layer contains less than 10 parts per million of ozone, while the average ozone concentration in Earth's atmosphere as a whole is about 0.3 parts per million.