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Per- and polyfluoroalkyl substances are a group of synthetic organofluorine chemical compounds that have multiple fluorine atoms attached to an alkyl chain. Different organizations use different definitions for PFAS, leading to estimates of between 8,000 and 7 million chemicals within the group.
Remediation of per- and polyfluoroalkyl substances refers to the destruction or removal of per- and polyfluoroalkyl substances (PFASs) from the environment. PFASs are a group of synthetic organofluorine compounds, used in diverse products such as non-stick cookware and firefighting foams, that have attracted great concern as persistent organic pollutants.
Perfluoroalkyl carboxylic acids (PFCAs), or perfluorocarboxylic acids are compounds of the formula C n F (2n+1) CO 2 H that belong to the class of per- and polyfluoroalkyl substances. The simplest example is trifluoroacetic acid .
Perfluoroalkyl and polyfluoroalkyl chemicals, collectively known as PFAS, are one such example and may be as dangerous as they are common. ... However, for most of these chemicals, it takes ...
There are nearly 15,000 of them, known collectively as PFAS, or perfluoroalkyl and polyfluoroalkyl substances. Since the 1950s, PFAS have been used in a huge range of consumer products, prized for ...
One of the most notable group of forever chemicals are PFAS, which stands for perfluoroalkyl and polyfluoroalkyl substances. PFAS have been linked to fertility and thyroid issues, cancer, and ...
The monomers of such perfluoroalkoxy alkane polymers, in common with other per- and polyfluoroalkyl substances, are widespread in the environment due to human production and release of the chemicals; so durable that they are referred to as "forever chemicals"; and have detrimental health concerns not yet fully understood. [10]
Perfluorohexanesulfonic acid (PFHxS) (conjugate base perfluorohexanesulfonate) is a synthetic chemical compound.It is one of many compounds collectively known as per- and polyfluoroalkyl substances (PFASs).