PFAS
A class of artificial organic compounds containing strong carbon-fluorine bonds, characterized by heat resistance, oil resistance and water repellency. Because they are extremely difficult to degrade in the natural environment, they are called "forever chemicals".
Timeline (last 90 days)
In natural environments, almost no microorganisms have evolved enzyme systems capable of effectively breaking carbon-fluorine bonds, and the degradation half-life of PFAS is measured in decades to hundreds of years.
PFAS destruction technologies currently under research include high-temperature incineration, supercritical water oxidation and plasma treatment, but energy consumption and costs are all high.
The EU is advancing a proposal for group restrictions on PFAS, managing thousands of substances as a single category.
The "fluorine sheath" formed by fluorine atoms around the carbon chain can shield the carbon skeleton from attack by enzymes, oxidants, and microorganisms.
Many countries have begun restricting the production and use of PFAS and setting drinking water standards.
The current scientific consensus holds that PFAS contamination has become a global problem, with traces of PFAS found in Arctic wildlife, human breast milk, drinking water sources, and rainwater.
PFAS (per- and polyfluoroalkyl substances) are called 'forever chemicals' because their chemical bonds are extremely stable and they are almost impossible to degrade in the natural environment or in the human body.
The lengthy time span between Hansen's discoveries in the late 1990s and PFAS issues genuinely entering public awareness and the regulatory agenda has exposed serious lag in chemical regulation.
It is estimated that the drinking water of hundreds of millions of people worldwide has been contaminated with PFAS to varying degrees.
ProPublica published an in-depth investigative report exposing that 3M concealed the truth about PFAS contamination for decades.
3 more timeline events
All Facts (13)
The EU is advancing a proposal for group restrictions on PFAS, managing thousands of substances as a single category.
50%UnverifiedIn natural environments, almost no microorganisms have evolved enzyme systems capable of effectively breaking carbon-fluorine bonds, and the degradation half-life of PFAS is measured in decades to hundreds of years.
50%UnverifiedPFAS destruction technologies currently under research include high-temperature incineration, supercritical water oxidation and plasma treatment, but energy consumption and costs are all high.
50%UnverifiedThe "fluorine sheath" formed by fluorine atoms around the carbon chain can shield the carbon skeleton from attack by enzymes, oxidants, and microorganisms.
50%UnverifiedMany countries have begun restricting the production and use of PFAS and setting drinking water standards.
50%UnverifiedPFAS (per- and polyfluoroalkyl substances) are called 'forever chemicals' because their chemical bonds are extremely stable and they are almost impossible to degrade in the natural environment or in the human body.
50%UnverifiedThe lengthy time span between Hansen's discoveries in the late 1990s and PFAS issues genuinely entering public awareness and the regulatory agenda has exposed serious lag in chemical regulation.
50%UnverifiedIt is estimated that the drinking water of hundreds of millions of people worldwide has been contaminated with PFAS to varying degrees.
50%UnverifiedThe carbon-fluorine bond (C-F) in PFAS molecules is one of the strongest chemical bonds in organic chemistry.
50%UnverifiedPFAS are widely used in non-stick cookware coatings, waterproof fabrics, food packaging, firefighting foam, and thousands of other everyday products due to their heat resistance, waterproofing, and oil-repellent properties.
50%UnverifiedA large body of scientific research has linked PFAS exposure to health issues including certain types of cancer, immune system suppression, thyroid dysfunction, reproductive system problems, and developmental disorders in children.
50%UnverifiedThe current scientific consensus holds that PFAS contamination has become a global problem, with traces of PFAS found in Arctic wildlife, human breast milk, drinking water sources, and rainwater.
50%UnverifiedProPublica published an in-depth investigative report exposing that 3M concealed the truth about PFAS contamination for decades.
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