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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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Seafood Problem: Surprising Dangers of Excessive Consumption

The AHA! Team — Fri, 17 May 2024 08:08:42 +0000

Patrick Tims via NaturalHealth365 – While seafood is well-known for its various health benefits, such as its rich omega-3 fatty acids and essential nutrients, there are risks associated with its consumption that may not be widely recognized. Recent research published in Exposure and Health reveals a significant concern: underestimating exposure to PFAS through seafood. PFAS, or per- and polyfluoroalkyl substances, are synthetic chemicals found in various consumer products – and apparently in your seafood. This discovery highlights the need for further investigation and awareness regarding the potential health risks associated with high-seafood diets. Researchers’ startling discovery of PFAS in seafood The study aimed to assess seafood consumption patterns among New Hampshire residents and the associated PFAS exposure. The researchers conducted a population-based survey involving 1,829 adults and children aged 2-11 in June 2021. The survey collected data on seafood consumption frequency, portion sizes, types, and sources. After determining the most commonly consumed seafood species, the researchers purchased these species from a seafood market in Portsmouth, NH. They then analyzed the purchased seafood for 26 different PFAS compounds to quantify their presence. The researchers calculated hazard quotients for PFAS compounds with available health guidance values to assess the potential health risk posed by seafood consumption. Key findings from the study include: Among adults, 95% reported consuming seafood within the last year, with shrimp, haddock, salmon, and canned tuna being the most frequently consumed types. Based on consumption frequencies and meal sizes, the researchers estimated daily seafood consumption rates for adults (median: 33.9 g/day) and children (median: 5.0 g/day), which were somewhat higher than national estimates for the Northeastern US. PFAS were detected in shrimp and lobster purchased from the local market, with median concentrations ranging from below the detection limit to 1.74 ng/g for shrimp and 3.30 ng/g for lobster. Hazard quotients suggested that high seafood consumers may be exposed to PFAS concentrations that potentially pose a health risk. Is your favorite seafood safe from PFAS contamination? The plight of shellfish living along the seafloor is tragic as they become the unwitting carriers of higher PFAS levels. These contaminants are then ingested by larger fish like salmon and tuna, endangering our favorite seafood choices. The presence of PFAS in our seafood not only raises alarm about its safety but also serves as a stark reminder of the broader issue of environmental contamination. It’s a call to action for stronger regulations to shield our food supply from harmful chemicals, urging us to advocate for sustainable fishing practices and rigorous monitoring of seafood safety standards to safeguard public health. Protect your health by minimizing PFAS exposure In the battle to minimize exposure to PFAS, it’s crucial to recognize that while it may be impossible to completely eliminate these chemicals from seafood and consumer products, there’s hope for change. Public health guidelines need to be revamped to reduce PFAS exposure, especially in coastal areas like New England, where industries have contaminated countless fish with these “forever chemicals.” While avoiding seafood altogether is an option, it would leave a significant gap in essential lean protein and omega-3 fatty acids, which are crucial for human health. As a consumer, you can take steps to minimize PFAS exposure. For instance, avoid freshwater fish, especially those caught in or near urban areas where PFAS are prevalent. Additionally, opt for alternatives to nonstick cookware, as they often contain PFAS. Transitioning to ceramic pots and pans can significantly reduce PFAS exposure while still allowing for efficient cooking. While it may not be practical to create your own backyard pond stocked with untainted fish, you have the power to make informed choices that protect your health and the environment. Sources for this article include: Link.springer.com Medicalxpress.com To read the original article 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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Study Reveals SHOCKING Link Between Forever Chemicals and Liver Cancer

AHA Publisher — Fri, 19 Aug 2022 07:00:36 +0000

News Staff via NaturalHealth365 – Your liver is a vital organ with hundreds of important functions. For instance, your liver works hard to cleanse your blood of poisons and toxins. Now, a recent study published in JHEP Reports shows a disturbing link between a synthetic “forever chemical” and deadly liver cancer. The report suggests that the higher the exposure to forever chemicals, the higher the chance of developing liver cancer. Man-Made Forever Chemicals Linked to Deadly Form of Liver Cancer Forever chemicals are synthetic chemicals commonly used in consumer and industrial products. There are many types of these chemicals, known as per- and polyfluoroalkyl substances (PFAS). Perfluooctane sulfate (PFOS) is just one type of PFAS. For the JHEP study, researchers analyzed human blood and tissue samples previously collected for an epidemiological study. Researchers looked at the samples of people who did or did not develop liver cancer. They evaluated samples taken before cancer diagnosis, comparing them to samples from those who didn’t develop cancer. Researchers found that study participants with high levels of PFOS in their blood were four and a half times as likely to develop liver cancer. The participants who developed cancer all had high levels of multiple types of PFAS in their blood. But the strongest link was between PFOS and liver cancer. Although other studies involving animals have suggested correlations between PFAS and cancer, this is the first human study to prove it. Here Is Why PFAS Are Bad News for Your Health Forever chemicals earned their nickname because they are extremely long-lasting. They take a long time to break down, accumulating in our environment and our bodily tissues over time. Unfortunately, the use of these dangerous chemicals is still widespread, although some manufacturers have stopped using them altogether amid growing health concerns. PFAS are present in drinking water, food, food packaging, and even cosmetics. This is bad news for your health. Besides being carcinogenic, PFAS are associated with liver damage, kidney disease, neurological damage, and autoimmune problems. And once these toxic chemicals get into your bloodstream, they’re there for the long haul. How Does PFOS Lead to Liver Cancer? Researchers speculate that forever chemicals impede natural liver function. For instance, PFOS may interfere with glucose metabolism, bile acid metabolism, and amino acid metabolism. When the liver can’t function normally because of metabolic disruption, fat buildup can occur within the liver. This results in a condition called nonalcoholic fatty liver disease (NAFLD). Those with NAFLD have a much higher risk of liver cancer. Shockingly, there has been a global uptick in the number of people diagnosed with NAFLD – with scientists estimating that a whopping 30% of the global population will have NAFLD by the year 2030. How to Minimize Intake of PFAS What can you do to keep your liver healthy and reduce your PFAS exposure? It may be hard to avoid PFAS altogether. But you may be able to minimize exposure by minimizing packaged and processed foods. Choose organic, whole, or locally grown foods whenever possible. This will ensure you’re avoiding as many harmful chemicals as possible and help you feel your best. Sources for this article include: Medical Press Johns Hopkins Medicine To read the original article click here.

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NEW Report Reveals That Bottled Water Contains More Toxic Chemicals Than You Can Imagine

AHA Publisher — Tue, 09 Feb 2021 08:00:05 +0000

Damon Hines via NaturalHealth365 – Americans drink more bottled water than any other beverage, including coffee, tea, milk, and soft drinks. According to Statista, in 2019, per capita consumption of bottled water amounted to roughly 43.7 gallons in the United States, up from 16.2 gallons in 1999. Of course, there are many people that say the consumption of water in plastic bottles can put a strain on the environment. But, what might be even harder to swallow is the fact that some popular bottled water brands are bad for your health, too. Consumer Reports tested 47 different brands of bottled water (35 carbonated, 12 carbonated) and found levels of toxic PFAS chemicals (poly and perfluoroalkyl substances) that are above the limit recommended by experts. In addition, a 2019 study published in Frontiers in Chemistry analyzed samples from 259 bottled water brands sold in several countries around the world and found that 93% of them contained microplastic synthetic polymer particles. In other words, the health qualities of bottled water might not be so healthy after all. Popular Bottled Water Brands Contain Shocking Levels of PFAS Prevailing standards and government regulations have not caught up to the toxic threat of PFAS, a group of industrial chemicals that have been linked to liver damage, thyroid disease, pregnancy risks, and other adverse health conditions. As of January 2021, the Environmental Working Group states that 2,337 locations in 49 states are known to have PFAS contamination in their water systems. In pursuit of healthier, purer, safer water, many Americans turn off the tap and reach for bottled water. It appears that bottled water, however, isn’t any cleaner. Consumer Reports found that popular bottled water brands, including products from the Perrier and Poland Springs lines, as well as canned carbonated waters like Bubly and LaCroix, contained concerning levels of PFAS. To learn more about the shocking (and disturbing) history of PFAS, listen to this incredible NaturalHealth365 podcastwith Jonathan Landsman and Robert. A Bilott, an American environmental attorney from Cincinnati, Ohio. Bottled Water Is Cleaner Than Tap Water, Right? Not Really! Bottled water is marketed as though it’s “cleaner” than tap water, but in reality, according to the study in Frontiers in Chemistry, bottled water has twice as much plastic in it as tap water. According to researchers, the majority of the microplastics lurking in bottled water are introduced in the industrial bottling process. Nylon, polyethylene terephthalate, and polypropylene, which are used to make bottle caps, are the plastic debris most commonly found. The study published in Frontiers of Chemistry tested 11 bottled water brands and found that the average brand contained 325 microplastic particles per liter of bottled water. Nestle Pure Life had the largest concentration of plastic particles, containing more than 10,000 microplastics per liter. Replace Your Bottled Water With These Safer Alternatives There are countless reasons to give up your plastic water bottle habit. PFAS and microplastics are just another toxic strand in a tangled web of health, economics, and environmental crisis. So what can you do? Buy a good water filter or home filtration system Carry your to-go water in an insulated stainless steel or glass bottle instead of plastic Advocate for clean, pure, safe water and help to support stricter PFAS and microplastic regulations By the way, there is one company that has tested “clean” for its plastic bottled spring water and that’s Tourmaline Spring. And, no, we at NaturalHealth365 do not earn a dime for talking about this brand. We just thought you might want to know. Sources for this article include: Consumerreports.org Livescience.com Time.com To read the original article click here. For more articles from NaturalHealth365 click here.

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