How can this question be answered? Do you mean in the ozone layer, in an ozone hole, or in a particular city?
Ozone level is the concentration of ozone. It should not be very low.
High level ozone or good ozone. It is the layer of atmosphere.
The ozone at ground level is a pollutant. It can cause breathing problems.
The ozone is depleting at stratospheric level. It is due to CFC's.
The ozone is found at 2 places. The atmospheric ozone and the ground level ozone.
Ozone is good at atmospheric level. It is pollutant in ground level.
The level will go very high. If there was no ozone.
The ground level ozone is a pollutant. It is release from vehicle exhaust.
Ground level ozone is a pollutant. it is generally emitted from vehicles.
The ozone layer is found in the level called stratosphere. Ozone layer is within this layer.
Ground level ozone can be formed due to the exhaust of vehicles. They release ozone as a pollutant.
The ozone at ground level is bad ozone. It acts as a polluntant.