Perfluoroalkyl substances (PFAS) are a group of man-made chemicals that have been widely used in various consumer products for decades due to their water and grease-resistant properties. They are commonly found in items such as non-stick cookware, water-repellent fabrics, and firefighting foam. Research on PFAS is focused on understanding their potential health and environmental impacts. Studies have found that exposure to PFAS may be linked to a range of health issues, including developmental delays, decreased fertility, and increased risk of certain cancers. PFAS have also been detected in the environment, including in water sources and wildlife, raising concerns about their persistence and potential for bioaccumulation in food chains. Efforts are underway to regulate and phase out the use of PFAS in consumer products, as well as to develop methods for monitoring and remediation of PFAS-contaminated sites. Ongoing research is also exploring the development of safer alternatives to PFAS to reduce human and environmental exposure to these chemicals.