Chlorofluorocarbons as always are the reply. These are the gases with most ozone depletion potential. The potential is too high to be imagined.
CFCs (chlorofluorocarbons).
Chlorine and bromine in the man-made gases like halons and freons (CFCs).
The ozone layer is depleted by man made CFC gases. They react with ozone.
Various phenomenon affect ozone. The three are : UV rays, Man made ODS and natural ODS.
There might be various factors for the depletion of ozone. Man made CFC's, greenhouse gases etc all contribute to it.
Ozone is made both by Nature (ozone layer, lightning, waterfalls, and as an oxidant produced to fight infection), by Man (oxidant used for many industrial, and commercial uses), and by both together (ozone pollution).
No, the ozone layer has been breaking up because of man made gases (CFCs) in the atmosphere. The chlorine in those gases attacks and destroys ozone. These gases, which can stay in the atmosphere for up to 75 years, are no longer emitted. Scientists hope that the ozone layer will be restored by 2060.
The man made objects in ozone layer are CFC's. They are harmful to ozone.
Man made chemicals are many. But the ones that were seen to destroy ozone were CFC's.
Ozone hole is created by natural and man made processes. Man made are CFC's.
CO2 (carbon dioxide) does not directly affect ozone, unlike the man-made gases CFCs (chlorofluorocarbons). However, higher levels of carbon dioxide have an indirect effect on the ozone layer, which lies in the stratosphere.In the lower stratosphere and close to the equator, increased CO2 slows the production of new ozone, especially in the spring.However, near the poles and in the upper stratosphere, CO2 increases the amount of ozone. It does this by preventing nitrogen oxide from breaking the ozone down.
Nature and Man.
"Ozone holes are made by Man."