Per- and polyfluoroalkyl substances (PFAS) are a group of synthetic chemicals that have been used in a wide range of consumer products, industrial processes, and firefighting foams. These chemicals are known for their resistance to heat, water, and oil, making them useful for applications such as stain-resistant coatings, non-stick cookware, and water-repellent fabrics. However, PFAS have also been linked to a range of health and environmental concerns. Studies have shown that exposure to PFAS may be associated with an increased risk of various health issues, including cancer, thyroid disease, and immune system dysfunction. PFAS are also persistent in the environment and have been found in water sources, soil, and wildlife. Research in the field of PFAS involves studying the sources, distribution, and impacts of these chemicals, as well as developing methods for detection, remediation, and regulation. This research is important for understanding the potential risks associated with PFAS exposure and for developing strategies to mitigate these risks and protect public health and the environment.