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Perfluorobutanesulfonic acid (PFBS) is a PFAS chemical compound having a four-carbon fluorocarbon chain and a sulfonic acid functional group. It is stable and unreactive because of the strength of carbon–fluorine bonds. It can occur in the form of a colorless liquid or a corrosive solid. [1]
A new EU drinking water directive issued in 2020 adopted PFAS limit values. The limit values are 0.1 μg/L for the sum of 20 PFASs including PFHxS, and 0.5 μg/L for the sum of all PFASs. This directive is binding for all EU member nations. It is a minimum directive, and member states can elect to adopt stricter regulations. [19]
It is commonly referred to as the main harmful PFAS chemical and PFOA is responsible for many of the negative health effects commonly associated with PFAS. 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 ...
The study, which was just published in the American Chemical Society’s journal Environmental Science & Technology Letters, found that some smartwatch and fitness tracker bands may expose the ...
The U.S. Environmental Protection Agency (EPA) published a non-enforceable health advisory for PFOA in 2016. The agency's health advisory level for the combined concentrations of PFOA and PFOS is 70 parts per trillion (ppt). [22] [23] In June 2020 the State of New Jersey published a drinking water standard for PFOA, the first state to do so.
Despite the nearly 15,000 Per- and Polyfluoroalkyl Substances (PFAS) known, the EPA singled out six in the first-ever federal limits for these chemicals in drinking water. PFAS, dubbed "forever ...
The European Chemicals Agency (ECHA; / ˈ ɛ k ə / EK-ə) is an agency of the European Union working for the safe use of chemicals. It manages the technical and administrative aspects of the implementation of the European Union regulation called Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH).
The addition of a substance to the SVHC Candidate List [2] by the European Chemicals Agency (ECHA) is the first step in the procedure for the authorisation or restriction of a chemical. [3] It is expected that industries operating in EU member states abide by the regulations of REACH and submit chemicals for consideration when appropriate. [4]