Perfluorocarbons (PFCs) are a group of human-made chemical compounds that consist of carbon and fluorine atoms. They are known for their stability and resistance to degradation, making them useful in various industrial applications, such as in the production of semiconductors and as refrigerants. PFCs are also used in medical imaging, particularly in MRI scans, where they help enhance the quality of images. However, their environmental impact is a concern, as they are potent greenhouse gases that can contribute to climate change when released into the atmosphere.