TFA: what is it, how much is formed from F-gases, and what are its environmental effects

TFA (trifluoroacetic acid and its salts) occurs naturally in the oceans, estimated at 61 -205 million tonnes,[1] formed over millions of years. It is well established that TFA is a ubiquitous natural component in rivers, lakes, and other surface water bodies. It is found in the environment as a salt. Natural sources are thought to include undersea volcanic vents. Before 1947 extremely limited quantities (if any) of TFA were emitted from industrial sources, but it is found in the deep arctic ocean layers in waters that have an average age comparably high at perhaps 400 years.[2] Most PFAS have different properties from TFA.