Non-polymer PFAS can build up in blood protein of animals, and is not always removed quickly. This means that predators eating PFAS-contaminated food will have higher levels in their bloodstream, and concentrations can increase up the food chain. Studies suggest that build up of PFAS is similar to those of other Persistent Organic Pollutants such as DDT.PFAS are estimated to be settling in arctic regions at rates of tens to hundreds of kilograms per year (25-850kg per year), depending on the specific PFAS chemical in question. Certain PFAS are released as gases to the environment and are blown a long way by wind and air currents in the atmosphere,. These gas PFAS will over time degrade to more persistent chemicals like PFOS and PFOA. This may be one reason why PFAS of environmental concern have been found in remote regions such as the Arctic as well as near PFAS production sitesPFAS including PFOS and PFOA have been found in air samples around Europe. The chemicals are found in small quantities, but appear in almost all samples tested. PFAS enters the atmosphere both from factories and the air inside our homes. https://www.ncbi.nlm.nih.gov/pubmed/17554424 PFAS is found in treated waste water from industrial and domestic sources and has been found in both rivers and groundwater. Conventional drinking water processes will not remove PFAS.PFAS-coated clothes that are thrown away will often end up either incinerated or in landfill. Unless incinerated at very high temperatures (>1000oC), fluorinated polymers could release more harmful PFAS during burning. PFAS of environmental concern have also been found in landfill leachate. Non-polymer PFAS are used in the production of fluorinated polymers. The manufacture of stain-resistant finishes generally releases these PFASs into the environment, both by air and water emissions. They are very hard to remove during water treatment. Workers in textiles factories are some of the population most exposed to these potentially harmful chemicals. Small quantities of PFAS will be removed during wash and wear of products containing PFAS. This includes fluorinated polymers used on stain-resistant coatings, and non-polymers that remain on clothes after production (Lassen et al. 2015).Most UK waste still ends up in landfill, and this includes PFAS-containing products. Studies have shown that the liquid coming from landfills (known as leachate) often contain non-polymer PFAS chemicals. In the USA the total quantities were estimated at 563-638 kg in 2013. To properly break down PFAS chemicals high temperature (1000oC or more) incineration is recommended. Incineration of municipal waste does not necessarily reach these temperatures (min temp. required is 850oC), and the incomplete breakdown could release non-polymer PFAS.Wash and wear of clothing that contains PFAS-based stain-resistant or water repellent finishes release PFAS to the environment. Coatings are thought to lose effectiveness after 20-30 washes. This can include non-polymer PFAS, remnant from production or as a break-down product of side-chain polymers (Lassen et al. 2015). The manufacture of stain-resistant finishes releases PFASs into the environment, both by air and water emissions. PFAS are very hard to remove during water treatment. Industrial emissions are estimated to be the biggest source of these chemicals to the environment.

News and Blogs

Food packaging PFAS

20th May 2021

‘Forever chemicals’ still present in food packaging from UK high street retailers

We're thrilled to have Anabel Bennett of environmental charity CHEM Trust present a new investigation ‘Analysis of PFAS chemicals in takeaway food packaging from UK high street retailers’. Read on to find out what the report shows and what ChemTrust are doing to tackle this ongoing source of PFAS pollution. Today, CHEM trust and...

26th March 2021

Public concern sparks questions over the future use of PFAS in the UK.

Emails from concerned constituents prompts a wave of tough questions for government ministers on the future use of forever chemicals, PFAS, in the UK.

9th February 2021

UK public calls for supermarkets to take voluntary action on “Forever Chemicals”, PFAS, in food packaging

Fidra delivers petition urging supermarkets to remove chemicals of concern, PFAS, from UK food packaging, amidst growing concerns linking exposure to reduced immunity, and to long-term environmental harm.

29th January 2021

Over 70% of MPs now know about the forever chemicals, PFAS.

A big thank you from Fidra! You have made sure MPs all over the country now know about PFAS.

3rd December 2020

Sustainable packaging brand, Delipac, proudly adds PFAS-free to their list of environmental credentials

Delipac announces PFAS-free packaging following growing demand from retail sector.

17th November 2020

Ask your MP to take action on PFAS pollution!

Will you join us in asking the UK Government to take immediate action on forever chemicals. Email your MP today!

15th October 2020

EU to ban all non-essential uses of PFAS: Will the UK be equally ambitious?

EU puts PFAS policy at top of the agenda in their latest Chemicals Strategy. Will the UK take action to ensure our health and environment is protected from PFAS?

17th September 2020

PFAS is most definitely on the menu, but should we be worried?

EFSA releases latest scientific opinion on PFAS in food, highlighting effects on our immune system as a key area for concern.

14th August 2020

Major takeaway chains still serving food packed in PFAS

New study finds items from six major fast-food chains found to contain PFAS. Is their more to your Big Mac and fries than you bargained for?