Per- and polyfluoroalkyl substances (PFAS), often referred to as "forever chemicals," are among the most persistent contaminants found in water systems worldwide. Their strong carbon-fluorine bonds make them highly resistant to degradation, allowing them to remain in the environment for long per...
Source: [Phys.org](https://phys.org/news/2026-06-pfas-chain-length-environmental-fate.html)