Levels of a little-known forever chemical known as TFA in European wines have risen “alarmingly” in recent decades, according to analysis, prompting fears that contamination will breach a planetary boundary.

Researchers from Pesticide Action Network Europe tested 49 bottles of commercial wine to see how TFA contamination in food and drink had progressed. They found levels of trifluoroacetic acid (TFA), a breakdown product of long-lasting Pfas chemicals that carries possible fertility risks, far above those previously measured in water.

Wines produced before 1988 showed no trace of TFA, the researchers found, but those after 2010 showed a steep rise in contamination. Organic and conventional wines showed a rise in TFA contamination, but levels in organic varieties tended to be lower.