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Bacteria Found to Eat Forever Chemicals & Even Some of Their Toxic Byproducts

The AHA! Team — Mon, 24 Mar 2025 05:36:09 +0000

University at Buffalo via EurekAlert! – University at Buffalo study shows that strain taken from contaminated soil breaks apart the strong carbon-fluorine bonds of PFAS, as well as some of the shorter-chain PFAS left behind In the quest to take the “forever” out of “forever chemicals,” bacteria might be our ally. Most remediation of per- and polyfluoroalkyl substances (PFAS) involves adsorbing and trapping them, but certain microbes can actually break apart the strong chemical bonds that allow these chemicals to persist for so long in the environment. Now, a University at Buffalo-led team has identified a strain of bacteria that can break down and transform at least three types of PFAS, and, perhaps even more crucially, some of the toxic byproducts of the bond-breaking process. A strain of bacteria that can break down and transform at least three types of PFAS Published in this month’s issue of Science of the Total Environment, the team’s study found that Labrys portucalensis F11 (F11) metabolized over 90% of perfluorooctane sulfonic acid (PFOS) following an exposure period of 100 days. PFOS is one of the most frequently detected and persistent types of PFAS and was designated hazardous by the U.S. Environmental Protection Agency last year. The F11 bacteria also broke down a substantial portion of two additional types of PFAS after 100 days: 58% of 5:3 fluorotelomer carboxylic acid and 21% of 6:2 fluorotelomer sulfonate. The bond between carbon and fluorine atoms in PFAS is very strong “The bond between carbon and fluorine atoms in PFAS is very strong, so most microbes cannot use it as an energy source. The F11 bacterial strain developed the ability to chop away the fluorine and eat the carbon,” says the study’s corresponding author, Diana Aga, PhD, SUNY Distinguished Professor and Henry M. Woodburn Chair in the Department of Chemistry, within the UB College of Arts and Sciences, and director of the UB RENEW Institute. Unlike many prior studies on PFAS-degrading bacteria, Aga’s study accounted for shorter-chain breakdown products — or metabolites. In some cases, F11 even removed fluorine from these metabolites or broke them down to minute, undetectable levels. “Many previous studies have only reported the degradation of PFAS, but not the formation of metabolites. We not only accounted for PFAS byproducts but found some of them continued to be further degraded by the bacteria,” says the study’s first author, Mindula Wijayahena, a PhD student in Aga’s lab. The work was supported by the National Institute of Environmental Health Sciences, part of the National Institutes of Health. Other collaborators include the Catholic University of Portugal, the University of Pittsburgh and the Waters Corp. Picky eaters learn to like PFAS PFAS are a group of ubiquitous chemicals widely used since the 1950s in everything from nonstick pans to fire-fighting materials. They’re far from the meal of choice for any bacterium, but some that live in contaminated soil have mutated to break down organic contaminants like PFAS so that they can use their carbon as an energy source. “If bacteria survive in a harsh, polluted environment, it’s probably because they have adapted to use surrounding chemical pollutants as a food source so they don’t starve,” Aga says. “Through evolution, some bacteria can develop effective mechanisms to use chemical contaminants to help them grow.” The bacterial strain used in this study, F11, was isolated from the soil of a contaminated industrial site in Portugal and had previously demonstrated the ability to strip fluorine from pharmaceutical contaminants. However, it had never been tested on PFAS. Collaborators from the Catholic University of Portugal placed F11 in sealed flasks with no carbon source aside from 10,000 micrograms per liter of PFAS. Following incubation periods of between 100 to 194 days, the samples were then shipped to UB, where analysis revealed that F11 had degraded some of the PFAS. The elevated levels of fluoride ions detected in these samples indicated that F11 had detached the PFAS’ fluorine atoms so that the bacteria could metabolize the carbon atoms. F11 was not only chopping PFOS into smaller pieces, but also removing the fluorine from those smaller pieces “The carbon-fluorine bond is what makes PFAS so difficult to break down, so to break them apart is a critical step. Crucially, F11 was not only chopping PFOS into smaller pieces, but also removing the fluorine from those smaller pieces,” Wijayahena says. Some of the metabolites left behind still contained fluorine, but after being exposed to PFOS for 194 days, F11 had even removed fluorine from three PFOS metabolites. “As a caveat, there could be other metabolites in these samples so miniscule that they elude current detection methods,” Aga says. Making PFAS a desirable menu item While UB researchers say their study is a good start, they caution that the F11 took 100 days to biodegrade a significant portion of the supplied PFAS, and there were no other carbon sources available for consumption. The team now plans to research how to encourage F11 to consume PFAS faster, even when there are competing energy choices that could increase their growth rate. “We want to investigate the impact of placing alternative carbon sources alongside the PFAS. However, if that carbon source is too abundant and easy to degrade, the bacteria may not need to touch the PFAS at all,” Aga says. “We need to give the F11 colonies enough food to grow, but not enough food that they lose the incentive to convert PFAS into a usable energy source.” Eventually, F11 could be deployed in PFAS-contaminated water and soil. This might involve creating conditions to grow the strain within activated sludge at a wastewater treatment plant, or even injecting the bacteria directly into the soil or groundwater of a contaminated site, a process called bioaugmentation. “In wastewater- activated sludge systems, you could accelerate removal of undesired compounds by adding a specific strain to the existing bacterial consortium in the treatment plants,” Aga says. “Bioaugmentation is a promising method that has not yet been explored for PFAS remediation in the environment.” Journal Science of The Total Environment DOI 10.1016/j.scitotenv.2024.178348 Method of Research To read the original article about Bacteria Found to Eat Forever Chemicals click here.

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Toxic PFAS Detected: Band-Aid and Other Brands Under Scrutiny

The AHA! Team — Thu, 09 May 2024 20:06:31 +0000

Patrick Tims via NaturalHealth365 – Prepare for an eye-opening insight into the world of first aid. The very bandages we depend on to heal wounds may harbor a concerning (toxic) secret. Recent investigations have brought Band-Aid and other leading brands under scrutiny, revealing the presence of toxic PFAS chemicals. PFAS, known as per- and polyfluoroalkyl substances, have been used for decades in commercial products for their stain-resistant, oil-resistant, grease-resistant, and water-resistant properties. These synthetic compounds, which have been present in consumer products since the 1950s, raise significant questions about potential health implications. PFAS are in more than two dozen commonly used bandages The bandage analysis was conducted at a lab certified by the United States Environmental Protection Agency (EPA). According to the findings, 26 out of 40 tested bandages showed organic fluorine levels above 10 parts per million (ppm). Furthermore, among bandages marketed for black and brown skin tones, 63% exhibited traces of PFAS “forever chemicals,” with 10 out of 16 tested bandages surpassing the 10 ppm threshold. The detected ranges of organic fluorine, serving as an indicator for PFAS, varied from 11 ppm to 328 ppm. Bandages containing PFAS are problematic because they are placed on top of open wounds, which allows for direct entry into the bloodstream. However, bandage makers have not taken steps to remove PFAS from bandages in response to calls for materials without PFAS. Organic fluorine is a threat to the body’s immune system The presence of organic fluorine in the referenced bandages signals the existence of “forever chemicals,” scientifically proven to diminish immune system function and impair cognitive abilities. Furthermore, these chemicals disrupt the body’s endocrine system, leading to unhealthy hormonal responses, and are linked to reduced fertility and increased cancer risk. Researchers from North Carolina State University’s Center for Environmental & Health Effects of PFAS highlight fluoropolymers as a common type of PFAS contributing to bandage toxicity. PFAS can also be found in other consumer products such as dental floss, fast food packaging, deodorant, and contact lenses. Notably, 3M, the manufacturer of Sticky Notes, has announced plans to discontinue the use of PFAS in its products by the end of next year. Scientists are not completely clear as to whether topical exposure to PFAS is at the same risk level as other forms of exposure. However, the National Institute for Occupational Safety and Health has determined topical PFAS exposure is as dangerous as ingestion through water or food. According to Mamavation, PFAS have been found in popular bandages such as the aforementioned Band-Aid and those made by CVS Health and Equate. However, there are some bandages on the market, including those made by Tru Colour and 3M, that do not contain organic fluorine. Of the 18 brands analyzed, 65% contained harmful chemicals. Aside from the aforementioned Band-Aid brand bandages, the following brands’ bandages also contain organic fluorine: Equate First Honey Manuka CVS Health Care Science Curad Assorted Rite Aid First UP & UP Solimo (Amazon) Bypass the bandage brands listed above in favor of safer and healthier brands, including: Dry See Thin Dealmed Flexible Browndages Rite Aid Smart-Flex Sterile bandages Each of these safer bandages has fewer than 100 ppm of organic fluorine, meaning they pose minimal threat to human health. The cream of the crop with zero organic fluorine includes 3M Micropore, FEBU organic bamboo, Tru Colour, Trutone, Welly, and Patch Bamboo. Sources for this article include: Childrenshealthdefense.org Mamavation.com To read the original article click here.

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3 Ways BIG AG Is Poisoning Our Food Supply

AHA Publisher — Fri, 07 Oct 2022 07:00:29 +0000

Patrick Tims via NaturalHealth365 – Big agriculture is in the spotlight now that the public is learning about how the industry’s cost-cutting ways have resulted in unhealthy food with minimal nutrients, empty calories, and addictive ingredients. It wasn’t long ago when the fruits and vegetables available in local stores were chock-full of vitamins and minerals. Nowadays, the majority of the produce we consume is grown with harmful pesticides. Big Agriculture tech has improved, yet cancer and diseases are still prevalent, creating a progress paradox in desperate need of our collective attention. Today’s toxic food stems from how plants are grown, focusing on phosphate fertilizer. However, consumers are busy to the point that they cannot keep track of Big Agriculture’s practices. So here are the dirty details on the state of the world’s food industry. Phosphate Fertilizer Contains Radioactive Element, Raising Question About Food Safety Though few are aware of it, phosphate fertilizer used by Big Agriculture is slightly radioactive due to its unique component referred to as polonium-210. The problem with using even a small amount of this radioactive element is that it has the potential to be absorbed by the plants we depend on for sustenance and continued health. Rewind to 2015, glyphosate used within the aforementioned fertilizer was formally labeled as a human carcinogen. Glyphosate is tied to many health issues, including damage to the internal organs over time and even cancer. Though the scientific and medical communities are not completely certain phosphate directly causes cancer, it is clear that it is a toxic component that Big Agriculture must address in due time. Industrial Waste, Heavy Metals in Biosolids Linked to Cancer, Organ Damage The word “biosolids” (sewage sludge) certainly sounds intimidating, yet their toxic components are not as complex as they appear on their surface. The fertilizer used to grow crops contains PFAS chemicals. Such chemicals are much more likely to cause health problems, including issues with the thyroid, liver, and other internal organs. Crops serve as the conduit between the toxic components and the consumer, ultimately compromising the human body as time progresses. If BIG AG is going to re-establish a rapport with the public, it will have to address the use of toxic sludge for crop growth in the near future. Unfortunately, industry heads haven’t shown a willingness to alter their ways, meaning toxic sludge will be used to grow the food we need for sustenance until consumers and/or food industry regulators take action. Weed Killer Causes DNA and Pineal Gland Damage and More Though it might be hard to believe, the glyphosate used by farmers and others in the agricultural industry to inhibit weed growth has the potential to cause DNA damage and possibly even damage to the acorn-shaped pineal gland in the center of the brain that might one day be revealed as the spiritual center of the human body. Damage to the pineal gland is tied to neurological problems and gut dysbiosis, diseases ranging from Parkinson’s to anxiety, depression, and even autism. Pineal gland damage might also catalyze the release of a hormone that stimulates the thyroid, potentially setting the stage for hypothyroidism to develop across the aging process. The answer to this quandary is simple: consumers should consider boycotting Big Agriculture in favor of smaller, local farmers who grow organic crops without weed killers and other chemical-laden products. Alternatively, federal regulators could ramp up regulations on Big Agriculture, forcing the industry to clean up its practices and grow healthy and nutritious food that advances the greater good as opposed to corporate profits. Sources for this article include: Citeseerx.ist.psu.edu ChildrensHealthDefense.org To read the original article click here.

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