What gases are destroying ozone layer?

Ozone depleting substances include:

• chlorofluorocarbons (CFCs)
• hydrochlorofluorocarbons (HCFCs)
• hydrobromoflurocarbons (HBFCs)
• halons.
• methyl bromide.
• carbon tetrachloride.
• methyl chloroform.

What happens when ozone layer is destroyed?

Ozone layer depletion causes increased UV radiation levels at the Earth’s surface, which is damaging to human health. Negative effects include increases in certain types of skin cancers, eye cataracts and immune deficiency disorders. UV rays also affect plant growth, reducing agricultural productivity.

How do gases affect the ozone layer?

The depletion of the ozone layer is caused mainly by the increase in emissions of chlorine- and bromine-containing compounds like CFCs, halons, carbon tetrachloride, methyl chloroform and methyl bromide. Emissions of greenhouse gases can affect the depletion of the ozone layer through atmospheric interaction.

Does CO2 destroy the ozone layer?

Carbon dioxide has no direct effect on ozone, unlike CFCs and HFCs. Higher levels of carbon dioxide, however, do have an indirect effect on the ozone layer in the stratosphere. But near the poles and in the upper stratosphere, CO2 is increasing the amount of ozone by preventing nitrogen oxide from breaking it down.

Which gas does not destroy ozone layer?

HFCs
HFCs are emitted as by-products of industrial processes and are also used in manufacturing. They do not significantly deplete the stratospheric ozone layer, but they are powerful greenhouse gases with global warming potentials ranging from 140 (HFC-152a) to 11,700 (HFC-23).

Does CO2 break down the ozone layer?

Which gas does not deplete ozone layer?

Is o3 poisonous?

Ozone is a toxic gas with vastly different chemical and toxicological properties from oxygen. Several federal agencies have established health standards or recommendations to limit human exposure to ozone.