PFOA vs. PFOS
PFOA and PFOS are both man-made chemicals that belong to a larger class of chemicals known as per- and polyfluoroalkyl substances (PFAS). Here is a brief overview of each chemical:
PFOA (Perfluorooctanoic acid) - PFOA is a fluorinated chemical that has been used to make non-stick coatings, stain-resistant fabrics, and other industrial products. PFOA has been linked to health problems such as cancer, thyroid disease, and developmental problems.
PFOS (Perfluorooctane sulfonate) - PFOS is another fluorinated chemical that has been used in many of the same industrial applications as PFOA. Like PFOA, PFOS has been linked to health problems including cancer, immune system damage, and developmental problems.
Both PFOA and PFOS are persistent in the environment, meaning that they do not break down easily and can accumulate in the food chain. They have been found in the blood of people and animals all over the world, including in remote areas where they have never been produced or used. As a result of their persistence and potential health risks, many countries have restricted or banned the use of PFOA and PFOS.