Pfas is a collective term for a group of chemicals that are man-made and do not occur in nature. The abbreviation PFAS stands for per- and polyfluoroalkyl substances.
These substances have very useful properties for us as humans. For example, the properties of these fabrics include being water, grease, dirt and dust repellent. Also, these fabrics can withstand heat well and they are not very sensitive to the degradation of other fabrics. PFAS is used to make rainwear, non-stick pans, pizza boxes, ski wax, impregnating agent for textiles and leather, and firefighting foam, among other things.
There are 2 major problems with PFAS and that is that these substances are poorly biodegradable and they can be harmful to human health if overexposed.
PFAS ends up on our soil mainly through emissions from factories working with PFAS. The PFAS substances then get suspended in the air, are carried with the wind, and with rain they settle on the soil at all of us in the garden.