CFC's are a major problem. It is because they deplete the ozone.
Every country in the world approved the 1987 Montreal Protocol, which led to the phasing out of the production of CFCs (chlorofluorocarbons), the major cause of ozone destruction in the atmosphere.
Carbon Dixide
Carbon Dioxide.
CFCs are neither soluble in water or reactive with it. Rain has no impact on CFCs
Chlorofluorocarbons (CFCs) are non-toxic.
Replacements for CFCs (dependding on use) included:HCFCsNitrogenAirPropane
CFCs or chlorofluorocarbons are released when a device that holds it is leaking. Also some aerosols release CFCs into the atmosphere.
No, burning fossil fuel has little to do with this. The ozone problem was caused by the addition of CFCs (chlorofluorocarbons) to the atmosphere during the 20th century. The Montreal protocol successfully convinced all countries to stop producing CFCs and the ozone layer should have repaired itself by around 2050.
CFC's and ozone layer combined is a concern. It is the problem because CFC's destroy the ozone to a great content.
CFCs were the compressed gas that was used as "spring" to push the can contents out of the container. CFCs have been replaced with HCFCs as a consequence of the Montreal Protocol.
Probably not. There may be some small companies in developing countries still using CFCs but all major countries have phased them out by the end of last century. Hairsprays have other chemicals which may not be good for the atmosphere either. We may have to wait and see.
By the CFCs being sorced into the air, the sun is Breaking them down into the earth.