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Published:
12
February
2024

Chemistry

Microplastics

Pollution

Water

Cosmetics

Environment

Pesticides

Perpetual chemicals PFAS - Increasing contamination and escalating risks

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PFAS, known as perpetual chemicals, are characterized by their extreme persistence in the environment.

Their release leads to barely degradable residues. These chemicals, widespread in numerous products, are constantly accumulating, including in the human food chain, which poses an escalating risk. The increasing presence of PFAS has consequences that are difficult to assess.

Perpetual chemicals PFAS - Practical, but problematic

PFAS, short for "per- and polyfluorinated alkyl substances", are in demand in many industrial applications and products due to their water, grease and dirt-repellent properties as well as their chemical and thermal resistance. However, these characteristics also contribute to the fact that PFAS residues do not degrade in the environment but continuously accumulate. This accumulation occurs not only in soils and water bodies, but also in the human body via the food chain, raising concerns about their long-term effects.

PFAS in every blood sample: a Swiss study raises concerns

On behalf of the FOPH, the exposure of the Swiss population to PFAS was examined in a pilot phase of the Swiss Health Study. Every single one of the more than 700 blood samples analyzed contained detectable amounts of PFAS. It is particularly alarming that the concentrations exceeded a health-relevant limit value in 3.6 percent of these samples. This finding is particularly worrying as PFAS are associated with a number of serious health risks, including cancer, thyroid disease and developmental disorders in unborn babies.

PFAS: Ubiquitous and the challenge of finding substitutes

We encounter PFAS almost everywhere in our everyday lives - in products such as dental floss, non-stick pans, outdoor clothing, cosmetics and electronics. The exact exposure to these ubiquitous chemicals often remains uncertain as there is no mandatory labeling for PFAS. This makes it difficult for consumers to avoid these substances.

SRF magazine "Puls

In the following report (see video link) of the SRF magazine "Puls", presenter Daniela Lager, together with environmental scientist Juliane Glüge from the ETH, guides us through a supermarket to show in which product categories PFAS are typically found and how consumers can recognize alternatives.

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