Final answer:
A person who owns a cylinder that contained refrigerant should return it to an authorized reclamation facility to ensure it is recycled or disposed of safely and does not harm the environment.
Step-by-step explanation:
Every person who owns a cylinder that has contained a refrigerant should return it to an authorized reclamation facility. Disposing of refrigerant cylinders in landfills or repurposing them indiscriminately as scrap metal is not safe and can be harmful to the environment. Moreover, using them for storage of other chemicals is not advisable due to the potential for chemical reactions and contamination. Authorized reclamation facilities are equipped to handle and properly recycle or dispose of refrigerants, preventing the release of harmful substances, such as chlorofluorocarbons (CFCs), into the atmosphere, which can contribute to ozone depletion and global warming. By returning cylinders to these facilities, you can ensure they are handled in a way that is safe for both the environment and public health.