A recent study by researchers at the University at Buffalo has identified a bacterial strain capable of breaking down certain "forever chemicals" (per- and polyfluoroalkyl substances or PFAS).
PFAS are a group of man-made chemicals known for their persistence in the environment due to the strong carbon-fluorine bond. These chemicals are widely used in various products, from non-stick cookware to firefighting foams, and have been linked to adverse health effects.
The study, published in Science of the Total Environment, found that the bacterial strain, Labrys portucalensis F11, can degrade several types of PFAS, including perfluorooctane sulfonic acid (PFOS), a particularly persistent and hazardous substance. Importantly, the researchers observed that the bacteria can also break down some of the shorter-chain byproducts resulting from the initial PFAS degradation, which are often still toxic.
This discovery offers a potential avenue for PFAS remediation. By understanding how these bacteria degrade PFAS and optimizing their activity, researchers may be able to develop innovative bioremediation strategies for contaminated sites and wastewater treatment plants.
However, the researchers emphasize that further research is crucial to enhance the efficiency of this bacterial degradation process. Investigating the optimal conditions for bacterial growth and PFAS degradation is crucial, particularly in the presence of other potential carbon sources that could compete with PFAS for bacterial consumption.
This research highlights the potential of harnessing natural microbial processes to address the challenge of PFAS contamination. By further exploring the capabilities of these bacteria and developing effective bioremediation strategies, we may be able to mitigate the environmental and health impacts of these persistent chemicals. Read the full study on science direct.
