{"id":87018,"date":"2023-06-28T13:33:20","date_gmt":"2023-06-28T09:03:20","guid":{"rendered":"https:\/\/polymervapooshesh.ir\/?p=87018"},"modified":"2023-07-02T11:10:12","modified_gmt":"2023-07-02T06:40:12","slug":"thought-to-be-safe-replacement-pfas-used-in-food-packaging-are-actually-hazardous","status":"publish","type":"post","link":"https:\/\/polymervapooshesh.ir\/en\/thought-to-be-safe-replacement-pfas-used-in-food-packaging-are-actually-hazardous\/","title":{"rendered":"Thought To Be Safe: Replacement PFAS Used in Food Packaging Are Actually Hazardous"},"content":{"rendered":"

Iranpolymer\/ Baspar\u00a0\u00a0<\/strong><\/em>A study recently published in\u00a0Environmental Science & Technology Letters<\/em>\u00a0suggests that the per- and polyfluoroalkyl substances (PFAS) once considered safe for use in food packaging break down into toxic PFAS that can seep into our food and environment.
\n<\/span>In light of the dangers posed by smaller PFAS molecules like PFOA and PFOS in food-contact materials, numerous companies have shifted to using larger polymeric PFAS in their fast-food packaging, such as wrappers and bowls, to make them resistant to water and grease. These polymeric PFAS are touted as being \u201csafer\u201d options as they are deemed to be inert and too heavy to leach out of products.
\nHowever, this study provides the first evidence that polymeric PFAS used in food packaging break down into smaller molecules that are still harmful and can leach into food and the environment.
\n\u201cIt\u2019s clear that polymers aren\u2019t the harmless loophole the PFAS industry was counting on them to be,\u201d said Marta Venier, co-author and professor at Indiana University. \u201cTheir use in food packaging still leads to harmful and persistent PFAS contaminating the food we eat, and after it\u2019s thrown away, our air and drinking water.\u201d<\/p>\n

The researchers tested 42 paper-based wrappers and bowls collected from fast-food restaurants in Toronto. A PFAS that is known to be toxic\u20146:2 FTOH (6:2 fluorotelomer alcohol)\u2014was the most abundant compound detected in these samples. The polymeric PFAS in the samples can transform into this compound, thereby adding to a consumer\u2019s exposure to it.<\/p>\n

Critically, the researchers found that the concentration of PFAS declined by up to 85% after storing the products for two years under normal conditions (at room temperature and in the dark). Much of these losses were consistent with the breakdown of the polymeric PFAS added to the fast-food packaging. These results contradict claims that polymeric PFAS are immobile and do not create exposure risks.
\nSome smaller PFAS molecules have been associated with a wide range of serious health harms, from cancer to obesity to more severe\u00a0COVID-19<\/span>\u00a0outcomes, and they contaminate the drinking water of many millions. Only a small fraction of the thousands of PFAS have been tested for toxicity, and all PFAS (including polymers) are either extremely persistent in the environment or break down into extremely persistent PFAS.
\nThese concerns have prompted 11 U.S. states to ban PFAS from most food packaging, and major chains like Mcdonald\u2019s and Chick-fil-A have committed to becoming PFAS-free by 2025.<\/span><\/p>\n

\u201cThere has been great progress toward phasing out PFAS, polymers included, from fast-food packaging in the U.S.,\u201d said co-author Arlene Blum, Executive Director of the Green Science Policy Institute. \u201cHowever, this study calls into question the safety of polymeric PFAS for many of its uses. The best course of action to protect our children and future generations is to eliminate the whole class of PFAS from all non-essential uses, from food packaging to rain jackets, as soon as possible.\u201d<\/p>\n

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