Click the link to read the article on the E&E News website (Miranda Willson). Here’s an excerpt:
September 12, 2024
“It’s absolutely everywhere,” said Sarah Hale, an environmental researcher who manages ZeroPM, a project funded by the European Union. “Trifluoroacetic acid (TFA) will be the next discussion in America, I can guarantee it. It will be about how should we treat it and what should we do.”
The attention on TFA underscores the game of whack-a-mole that scientists and communities face with forever chemicals. With thousands of identified versions of the substances, the chemicals are practically ubiquitous in the global economy, and researchers are still determining the exact health risks associated with many of them. But TFA could pose a particularly difficult problem down the line, due to how much it would cost to take it out of drinking water, experts say. The substance is extremely small, mobile and water soluble. As a result, it cannot be removed from water using the filtration systems that many communities are installing now for large, widely studied forever chemicals, said Rainer Lohmann, a professor of oceanography at the University of Rhode Island.
Click the link to access the article “Assessing the environmental occurrence of the anthropogenic contaminant trifluoroacetic acid (TFA)” on the Science Direct website. Here’s the abstract:
Abstract
Trifluoroacetic acid (TFA) is a very persistent contaminant that has gained attention due to its multitude of anthropogenic sources, widespread occurrence in the environment, and expected accumulation in (semi-)closed drinking water cycles. Here, we summarize and assess the current knowledge on the anthropogenic sources of TFA to better understand the human-induced environmental TFA burden and highlight future research needs. Formation of TFA from the degradation of volatile precursors leads to diffuse and ubiquitous contamination of the environment. The analyses of ice core and archived leaf records have undoubtedly demonstrated that atmospheric depositions of TFA have increased considerably over the last decades in the Northern Hemisphere. Moreover, many point sources of TFA have been identified, which can lead to contamination hotspots posing a potential threat to human and environmental health. Also, unintentional formation of TFA during per- and polyfluoroalkyl substance (PFAS) remediation might become a major secondary source of TFA.