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Trifluoroacetic acid found in blood of all 110 European study volunteers

New research reveals widespread presence of 'eternal pollutant' TFA, prompting calls for stricter regulation.

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Trifluoroacetic acid found in blood of all 110 European study volunteers

What this story says

  • Trifluoroacetic acid (TFA) was detected in the blood of all 110 volunteers participating in a new study across nine European countries.
  • TFA concentrations were found to be four to five times higher than the sum of four long-chain PFAS compounds.
  • The European Food Safety Authority (EFSA) has reduced its acceptable daily intake for TFA and classified it as toxic for reproduction.
  • Six out of ten Croatian participants showed elevated levels of four long-chain PFAS compounds, with five of seven from Gospić having high values.

Who covered it

Left 67%(4)Centre 33%(2)Right 0%(0)

Percentages are shares of the 6 outlets carrying a published leaning rating. 21 of the 27 outlets we know ran this story carry no rating and are not counted in them. Coverage measured .

Trust

42/100

Craft

59/100

Hype

41/100

27 sources · methodology

Thin on the right so far

None of the 6 outlets with a published leaning rating that ran this story are rated right.

This story is still being watched, so it is a count and not yet a finding. Coverage keeps arriving for hours after an event, and a side that has published nothing this morning may publish by tonight. If it is still true when we stop checking, we will say so plainly.

A new study has found trifluoroacetic acid (TFA) in the blood of all 110 volunteers from nine European countries. The research, initiated by the European Greens/EFA group, analysed blood samples for various per- and polyfluoroalkyl substances, known as 'eternal pollutants'. TFA was detected in 100% of participants, with concentrations reported as four to five times higher than the combined levels of four long-chain PFAS compounds.

The European Food Safety Authority (EFSA) has recently lowered its acceptable daily intake for TFA to 0.014 mg per kilogram of body weight, down from 0.05 mg/kg. EFSA has also classified TFA as toxic for reproduction. The study involved volunteers from Italy, Belgium, France, Croatia, Germany, Luxembourg, Spain, Denmark, and Finland. Biological analyses were conducted by the Institute of Occupational Medicine in Hamburg, with toxicological interpretation by the Free University of Amsterdam.

While long-chain PFAS were found in all participants, TFA and PFPrA were the only ultra-short chain PFAS detected, with PFPrA present in 23% of volunteers. In Croatia, six out of ten participants had elevated levels of the four long-chain PFAS compounds. Among the seven participants from Gospić, five showed elevated values for these compounds.

Disagreement on linking Gospić findings to waste

The Croatian Institute of Public Health (HZJZ) stated that the results from a small number of volunteers do not allow for an assessment of PFAS exposure for the entire population of Gospić. According to HZJZ, the findings from the study cannot be linked to waste in the area. This contrasts with reports that have highlighted elevated PFAS levels in residents of Gospić.

What the coverage left out

None of the left or centre-rated reports mentioned the specific cost estimates for PFAS remediation that were presented by the European Greens/EFA group, which were cited in the full report from Il Fatto Quotidiano.

Still developing. We have re-checked which outlets are covering this 4 times, most recently on 2 Oct 2026, 14:45, and will add the sides that appear.

How each side covered it

Our own reading of the reporting listed below, written from the outlets’ articles rather than quoted from them. The reasoning is set out on our methodology page.

Left

4 rated outlets

  • Left-rated reports highlighted the widespread presence of TFA, with Il Fatto Quotidiano stating it was found in the blood of all 110 volunteers and describing it as the most widespread and indestructible eternal pollutant. These reports emphasised the European Greens/EFA group's call for a universal restriction on all PFAS, including TFA, and the application of the 'polluter pays' principle for contaminated sites. Il Fatto Quotidiano quoted MEP Cristina Guarda saying, 'No one is safe against PFAS. They must be banned and the phase-out must be planned, supported and completed.' The reports also focused on the classification of TFA as toxic for reproduction and the potential risks for women and fertility, noting that women were underrepresented in previous studies. Le Monde and franceinfo.fr also led on the detection of TFA in all tested Europeans and the warnings from ecologist MEPs.

Centre

2 rated outlets

  • Centre-rated reports focused on the overall findings of the study, noting that one in four Europeans analysed exceeded the recommended PFAS threshold. Hola News and Prensa Libre reported that levels of four long-chain PFAS were higher than the health reference value derived from EFSA criteria in one in four participants. These reports also mentioned the presence of TFA, another persistent pollutant, in the blood samples. Novi list reported that the Croatian Institute of Public Health (HZJZ) stated that the findings from Gospić could not be linked to local waste, a point of divergence from other reports.

Right

0 rated outlets

No outlet rated right has run this story so far. We are still checking, and will say plainly if that does not change.

Questions about this coverage

How did the left and right cover Trifluoroacetic acid found in blood of all 110 European study volunteers?
Of the 6 outlets on this story carrying a published leaning rating, 67% are rated left, 33% are rated centre, 0% are rated right. Those percentages are shares of the rated outlets, not of every outlet that ran it, which was 27. The sections above set out what each side emphasised, in its own terms.
Is Trifluoroacetic acid found in blood of all 110 European study volunteers left or right?
Too few of the outlets on this story carry a published leaning rating to say. 6 of them do, and this site does not characterise a field under 12: at that size one newsroom filing moves the share by ten points. The percentages above are the count as it stands.
Is the coverage of Trifluoroacetic acid found in blood of all 110 European study volunteers biased?
Trifluoroacetic acid found in blood of all 110 European study volunteers is one event reported by 27 outlets, and this page does not rate the story as biased or unbiased. What it publishes is the spread: which outlets ran it, where named rating organisations place each of them on the spectrum, and what each side chose to lead with. A leaning rating describes an outlet's record over time, not this article, and the two should not be run together.
Which side is not reporting Trifluoroacetic acid found in blood of all 110 European study volunteers?
When we first saw this story, outlets rated right had barely covered it. Coverage accretes for hours after an event, so that is where to look rather than a verdict — the split above is the current count, and it is the one to read.
Which outlets covered Trifluoroacetic acid found in blood of all 110 European study volunteers?
27 that we know of, every one of them listed further up this page with a link to its own report and to what we hold on the publisher. Nothing here is a summary of somebody else's summary: the outlets are named so the original reporting can be read.
What is trifluoroacetic acid (TFA)?
Trifluoroacetic acid (TFA) is a type of per- and polyfluoroalkyl substance (PFAS), often referred to as 'eternal pollutants'. It is a breakdown product of many fluorinated compounds, including refrigerants, pesticides, and other PFAS. It is considered the most widespread, smallest, and most indestructible of these pollutants.
What did the new study find about TFA?
The study found TFA in the blood of all 110 volunteers from nine European countries. The concentrations detected were significantly higher, about four to five times greater, than the sum of four long-chain PFAS compounds also analysed in the research.
What are the health implications of TFA?
The European Food Safety Authority (EFSA) has lowered its acceptable daily intake for TFA and classified it as toxic for reproduction. This classification indicates potential harm to fertility and the unborn child, highlighting concerns about its impact on human health, particularly reproductive health.
Were there specific findings for Croatian participants?
Yes, six out of ten Croatian participants in the study had elevated levels of four long-chain PFAS compounds. Furthermore, among the seven participants from the town of Gospić, five showed elevated values for these specific compounds, drawing attention to potential local exposure issues.

Read it at the source

27 outlets, grouped by the leaning a published rating gives them. Every headline links to the original; an underlined outlet name opens our profile of that publisher.

Left

4

Centre

2

Right

0

No outlet in this group ran the story.

Not rated

21
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How did this read?

About the coverage, not about the story. We do not ask whether you agree with what happened — we have no honest use for that answer.

TFA found in European blood samples | MediaBias News