abbreviation for per- and polyfluoroalkyl substances: artificial chemicals that are used to make many different products, that stay in the environment for a long time and are harmful to the health of people and animals

People can be exposed to low levels of PFAS through food. 人们可以通过食物接触到低水平的PFAS。

The foams once used in firefighting training contained harmful chemicals known as PFAS. 曾经用于消防训练的泡沫含有被称为PFAS的有害化学物质。