Carbon Chemist

Tag: PFAS

  • PFAS: How ‘forever chemicals’ reached one of the world’s most pristine areas

    PFAS: How ‘forever chemicals’ reached one of the world’s most pristine areas

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    Fog lying over the Amazon

    A type of hormone-disrupting forever chemical was found in the Amazon’s air

    Sebastian Brill/MPI-C

    Some of the most pristine parts of the planet have been contaminated with perfluoroalkyl and polyfluoroalkyl substances (PFAS), a class of chemicals that are nearly indestructible. Now, findings suggest that these “forever chemicals” are travelling in surprising ways.

    “If it can reach the pristine areas, then what can you say about the other areas?” says Ivan Kourtchev at Coventry University in the UK.

    PFAS are versatile – they are found in everything from the…

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  • PFAS: Quantum dots help destroy ‘forever chemicals’ with light

    PFAS: Quantum dots help destroy ‘forever chemicals’ with light

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    The carbon-fluorine bonds in “forever chemicals” make them hard to destroy

    Yurchanka Siarhei/Shutterstock

    Some “forever chemicals” – so named because of how difficult they are to break down – can be destroyed using light shining through quantum dots. This method could require less energy than other techniques to destroy the contaminants.

    “The major advantage of our approach is that it enables degradation using simple and versatile visible-light LEDs,” says Yoichi Kobayashi at Ritsumeikan University in Japan.

    Perfluoroalkyl and polyfluoroalkyl substances (PFAS) are a class of thousands of chemicals containing…

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