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Daily News Blog

Archive for the 'Glyphosate' Category


07
Sep

Of Note During Organic Month, Study Finds Organic Diet and Location Affect Pesticide Residues in the Body

(Beyond Pesticides, September 7, 2023) During Organic Month, the importance of organic practices is brought into sharp focus by a study published in July in Environmental Health Perspectives, which emphasizes the importance of an organic diet and location to residues of pesticides in the body. The study finds urinary levels of the weed killer glyphosate significantly decrease through an organic diet for pregnant individuals living further than 0.5km (~1640ft) from an agricultural field. However, the study finds that adopting an organic diet among pregnant individuals living closer than 0.5km to an agricultural area does not significantly decrease glyphosate levels, indicating alternative sources of contamination outside of diet. Although past studies prove time and time again that an organic diet can reduce the levels of pesticides in the body, far too few studies investigate how the intervention of the organic diet can alter glyphosate levels among pregnant individuals living near or far from agricultural fields on which the herbicide is used. Furthermore, pesticides’ presence in the body affects human health, especially during vulnerable life stages like childhood, puberty, pregnancy, and old age. The study raises the complexity of fully tracking multiple exposures to glyphosate and other pesticides and the need for […]

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05
Sep

“Legalized Poisoning of 5,500 People” Message Highlights Controversy Over Aerial Pesticide Spray in Oregon

(Beyond Pesticides, September 5, 2023) Lincoln County, Oregon  community members are fighting a plan announced by a private landowner to aerially spray 473 acres of clear-cut forest over the Beaver Creek watershed with a pesticide mixture containing carcinogenic glyphosate (commonly found in Roundup).  The aerial spraying is slated to take place approximately one mile from a water intake at Seal Rock Water District, which supplies water to 5,500 residents. Beyond the risks to human health, residents are concerned about the impacts on wildlife in the creek valley. Local advocates describe the area to include native wetland plants, birds, and fish, including the federally protected Coho Salmon and Marbled Murrelet, beaver, river otter, and roaming elk herds. Beavercreek is also a protected state natural area, where families paddle and walk along the state park marshlands.  Neighbors of Beaver Creek and the surrounding community are organizing phone banking, public art displays, and a petition urging Governor Tina Kotek to put a moratorium on the spray operation. One of the efforts displays the message “legalized poisoning of 5,500 people” through lights projected onto a basalt rock formation at Seal Rock State Park. The community has gathered over 2,000 petition signatures and over 100 […]

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31
Aug

Study Finds Glyphosate Exposure Among the General Population Poses a Risk to Neurological Health

(Beyond Pesticides, August 31, 2023) A study published in Environmental Research finds glyphosate levels in the body adversely affect neurological health. Specifically, oral intake (e.g., eating contaminated foods), inhalation, and dermal exposure to glyphosate lowered cognitive function scores, heightened likelihood of severe depressive symptoms, and impaired auditory (hearing) function. Thus, this study provides some of the first evidence linking glyphosate exposure to specific neurological health outcomes among the general U.S. population, indicating the need for further studies on mechanisms driving neurotoxicity and the medical significance over time. Although this study is among the first to highlight specific neurological effects from glyphosate exposure among the general population, this study is not the first to identify potential neurotoxicity from glyphosate exposure. (Previous research cited below.) The ubiquity of glyphosate uses in agriculture—which leaves residues of the toxic chemical in food—and in public areas (e.g., parks, and walkways) may mean that exposures to it represent a significant risk factor for the disease. Glyphosate is already implicated or proven in developing numerous health anomalies, including cancer. The neurological system, including the brain, spinal cord, and a vast network of nerves and neurons, is responsible for many bodily functions—from sensation to movement. However, pesticides play various roles in […]

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11
Aug

Study Cites Multiple Chemical Characteristics, Strengthening Weed Killer Glyphosate Cancer Ranking

(Beyond Pesticides, August 11, 2023) Reinforcing earlier findings, a systematic review published in Chemosphere finds the popular herbicide glyphosate and its formulations (glyphosate-based formulations-GBF) exhibit five out of the ten key characteristics (KC) of carcinogens (cancer-causing chemicals). Specifically, glyphosate exhibits strong evidence of genotoxicity, epigenetic alterations (heritable changes in gene expression), oxidative stress, chronic inflammation, endocrine disruption, and disturbs gut microbiota implicated in lymphomagenesis (growth and development of lymphoma). Although organizations like the International Agency for Research on Cancer (IARC) designate glyphosate as a probable human carcinogen, and scientific literature supports the findings on these adverse effects purported by glyphosate, the chemical remains on the U.S. market in various formulations. Glyphosate is the most commonly used active ingredient worldwide, appearing in many herbicide formulas, not just Bayer’s (formerly Monsanto) Roundup®. The use of this chemical has been increasing since the inception of crops genetically modified to tolerate glyphosate over two decades ago. The toxic herbicide readily contaminates the ecosystem with residues pervasive in food and water commodities. In addition to this study, literature proves time and time again that glyphosate has an association with cancer development, as well as human, biotic, and ecosystem harm. Therefore, advocates point to the need for national policies to reassess hazards associated with […]

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30
Jun

Zebrafish Study Links Glyphosate Exposure to Heart Damage Through Aging and Reduced Creation of Cardiac Muscle Cells

(Beyond Pesticides, June 30, 2023) Exposure to environmentally relevant concentrations of the herbicide glyphosate (GLY) has the potential to induce heart damage (cardiotoxicity) through the aging (senescence) of cells and a reduction of the number of rapidly increasing (proliferating) cells, according to a study published in Ecotoxicology and Environmental Safety. Specifically, glyphosate induces toxic effects on cardiomyocytes (cardiac muscles) responsible for contractions that pump the blood. Cardiovascular (heart) disease (CVD) is one of the leading causes of death in the U.S., with approximately 700,000 people dying annually of heart disease, equating to 25% of all U.S. deaths. Additionally, heart conditions are one leading cause of disability in the U.S. Research has shown that environmental pollutant exposure can increase the risk of developing cardiovascular disease, including stroke, heart attack, heart failure, atrial fibrillation, and cardiac arrest. Considering chemical exposure exacerbates adverse disease effects, reviews like these highlight the significance of evaluating synergism between diseases and toxic chemicals to safeguard human health. The study warns, “Our findings offer important information regarding the potential mechanisms of GLY cardiotoxicity toxicity. Notably, our study provides new insights into the relationship between GLY and senescence. Cardiac dysfunction of GLY to non-target organisms need to be noted in future study. Our study raises concerns about the […]

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27
Jun

Study Elevates the Connection Between Pesticides, the Gut-Brain Axis, and Disease

(Beyond Pesticides, June 27, 2023) Pesticides interfere with biological processes. This is their purpose. Unfortunately, they nearly always have unintended consequences, many of which have been ignored by their manufacturers. A new review article by Irish and Dutch researchers in the ISME Journal adds to the emerging scientific literature examining how pesticides affect the relationship between the human gut and the human brain (the “gut-brain axis”). Often called the “second brain” because it houses nerve cells and produces neurotransmitters, the gut-brain axis may be the most important locus where microbes and pesticides meet. The human gut plays host to a variety of microorganisms, ranging from bacteria and archaea to fungi, viruses and yeasts.[1] In a healthy person these microbes remain in balance and often cooperate both with each other and with human cells. The gut and the brain are deeply integrated through the vagus nerve and the neuroendocrine system. The vagus nerve is a treelike bundle of fibers extending from the lower part of the brain to nearly every body organ, but particularly the heart, lungs and digestive tract. The neuroendocrine system comprises specialized cells inhabiting nearly all the organs of the body that respond to signals from the brain […]

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09
Jun

EU and U.S. Pesticide Regulators Ignore Developmental Neurotoxicity of Pesticides, Industry Hides Data

(Beyond Pesticides, June 9, 2023) Glyphosate, usually marketed as the herbicide Roundup, has long been the poster child for shoddy regulation by both the U.S. Environmental Protection Agency (EPA) and the European Food Safety Authority (EFSA). In a study published June 1, 2023 in Environmental Health by Axel Mie and Christina Rudén, PhD, of Stockholm University and the Centre for Organic Food and Farming in Uppsala, the authors followed up on earlier work that documented deficiencies in information provided to European Union (EU) regulators by manufacturers. They identified nine studies on developmental neurotoxicity (DNT) that had been submitted to the U.S. Environmental Protection Agency (EPA) but were not disclosed to EU authorities. According to the research, seven of these studies would have “actual or potential regulatory impact.” According to the authors: “Of the nine undisclosed DNT studies, three were sponsored by Bayer and performed in their own laboratory. Three studies were sponsored by Syngenta and performed in their Central Toxicology Laboratory. One study each was sponsored by Nissan Chemicals and Ishihara Sangyo Kaisha (ISK), and these were performed at Huntingdon Life Sciences. For the remaining study, the sponsor and laboratory are unknown to us.” This study is a new example […]

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27
Mar

Corporations Are Asked to Stand Up for Health and the Environment; Sell Organic Compatible Products

(Beyond Pesticides, March 27, 2023) In a move labeled “risk mitigation”—that is, mitigation of the risk to its shareholders—Bayer-Monsanto announced in 2021 that it would phase out Roundup™ products containing glyphosate for the residential lawn and garden market as of January 2023. In taking this action, Bayer-Monsanto is making no admissions, and glyphosate products will still be available to farmers. However, Lowe’s and Home Depot are still selling the glyphosate-based lawn and garden products. Tell Lowe’s and Home Depot to eliminate Roundup™ and other toxic pesticides, promote organic practices, and sell organic compatible products.  In fact, since this is a voluntary reformulation, and Bayer-Monsanto has decided its own timing, the company cannot be held accountable to anything. The company could change its mind, and stores can continue to sell the glyphosate-based products as long as they want. And keep in mind that replacement versions of Roundup™ products are also toxic. Roundup® Dual Action, for example, contains the following active ingredients: triethylamine salt of triclopyr, fluazipop-P-butyl, diquat dibromide, and ammonium salt of imazapic. Thus, Bayer/Monsanto announces that it is changing the formulation of Roundup and moving away from glyphosate, while continuing to sell Roundup™ products formulated both with and without glyphosate—leaving consumers unaware of their risks. The U.S. Environmental Protection Agency (EPA) has […]

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07
Mar

Glyphosate Exposure Associated with Liver and Metabolic Disorders in Children, Young Adults

(Beyond Pesticides, March 7, 2023) Exposure to glyphosate (Roundup) and its breakdown products is associated with an increased risk of liver and metabolic disorders in children and young adults, according to research published in Environmental Health Perspectives earlier this month. While glyphosate has developed a well-deserved reputation as a carcinogen, research is finding that cancer is one of a myriad of chronic diseases associated with the notorious chemical. As this body of literature grows, growing awareness by the public is increasing pressure on the U.S. Environmental Protection Agency to cancel its allowed uses. Researchers began their investigation concerned about the rise of liver disorders and metabolic syndrome among young people. This trend has been pronounced among populations of color. The worrying increase has led many to consider synthetic chemical exposure as a contributing factor, as lack of diet and exercise is unlikely to account for the entirety of the increase. To better understand these impacts, researchers enrolled existing participants in the CHAMACOS (Center for the Health Assessment of Mothers and Children of Salinas) study, a long running cohort of mothers and their children born between the years 2000 and 2002 in the Salinas Valley of California. Enrolled participants consistent mostly […]

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15
Feb

Glyphosate Weed Killers Reduce Crop Yields and Hamper Climate Mitigation Efforts

(Beyond Pesticides, February 15, 2023) Glyphosate use in grassland pastures reduces crop yield and impedes climate change mitigation, finds two studies (1,2) published this month from the University of Turku, Finland. While massive public relations campaigns by the agrichemical industry have poured in millions of dollars to convince politicians and the public that pesticides are necessary to ‘feed the world’ and address the climate crisis, the data does not support these claims. “Only in recent years, we have started to realise that intensive agriculture and agrochemical pollution in fact contribute to a reversal of the intended purpose. Soils are polluted with pesticides and at the same time, extreme weather events erode soil nutrients,” says study coauthor Benjamin Fuchs, PhD. Researchers approached their investigation through two separate experiments on the grass Festuca pratensis, an important forage crop grown for grazing animals throughout the world. The first experiment was conducted in an enclosed greenhouse, while the second took place in a field setting. For both experiments, plots were separated between glyphosate-sprayed and unsprayed controls. All plots received three different approaches to cutting the grass: one group that was intensely cut to two inches (5cm), the second group cut to six inches (15cm), […]

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08
Feb

Garden Pesticide Use Harms Local Bird Populations, Study Authors Say “We Should Simply Ban These Poisons”

(Beyond Pesticides, February 8, 2023) Spraying pesticides around one’s garden negatively impacts local bird populations, according to research published by scientists at the University of Sussex, UK in Science of the Total Environment. Although this reasoning sounds common sense to those versed in the works of Rachel Carson, it underscores the immense importance of carrying on the legacy of her work and continuing to educate the public about the ongoing dangers posed by modern pesticides. As the study authors write, “Overall, our study shows that garden bird abundance and richness is strongly influenced by both extrinsic and intrinsic factors, and suggests that garden management, particularly regarding pesticide use, has a significant effect on bird life.” Researchers collected data by partnering with the British Trust for Ornithology, which conducts annual citizen-science counts of bird populations in UK gardens. Nearly 24,000 residents participate in the survey, which also includes information about the urbanization level surrounding their gardens, and other habitat characteristics. A group of these volunteers were provided with a questionnaire about their pesticide practices between 2020-2021, recording information on how often the pesticides were applied, as well as the pesticide brand name. After removing incomplete or unusable data, 615 individual gardens […]

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31
Jan

Glyphosate Induces Oxidative Stress, A Cancer Precursor, According to NIH Study

(Beyond Pesticides, January 31, 2023) Glyphosate exposure induces oxidative stress in the body, a key biomarker known to heighten an individual’s risk of cancer, according to research published in the Journal of the National Cancer Institute by a team of scientists from the National Institutes of Health. The findings, which tracked study participants’ past use of glyphosate and exposure levels through urine, are particularly concerning in light of recent data showing that four out of five (81.6%) U.S. residents have detectable levels of glyphosate in their bodies. Despite these concerning data, evidence of widespread exposure to a carcinogen has so far failed to sway regulators at the U.S. Environmental Protection Agency, necessitating meaningful change by elected officials to reform pesticide regulation. Scientists began with the determination from the International Agency for Research on Cancer (IARC) that there is epidemiological evidence associating glyphosate with blood cancers like non-Hodgkin lymphoma, and strong evidence of carcinogenicity in laboratory animal research brought on by genotoxicity (DNA damage) and oxidative stress. “Oxidative stress occurs when the production of reactive oxygen species (ROS) and other free radicals exceeds the body’s antioxidant defense mechanisms, causing damage to DNA, proteins, and lipids,” the study explains. This process can […]

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16
Dec

Denying Science, Manufacturing Doubt: Monsanto/Bayer’s Promotion and Defense of Glyphosate/Roundup

(Beyond Pesticides, December 16, 2022) A report released last week — Merchants of Poison: How Monsanto Sold the World on a Toxic Pesticide — exposes not only Bayer/Monsanto malfeasance in its “promotion” of its glyphosate-based herbicide products, including the notorious Roundup®, but also, the broader landscape of corporate efforts to white- or green-wash products that companies know are harmful to people and the environment. The report was issued by U.S. Right to Know (USRTK, a nonprofit investigative research group focused on promoting transparency for public health), Friends of the Earth (FOE), and Real Food Media. It carries the pithy subtitle, “A case study in disinformation, corrupted science, and manufactured doubt about glyphosate,” a description cited by the Friends of the Earth press release as “at the core of the pesticide industry’s public relations playbook.” Beyond Pesticides welcomes this report, which comports with much of our previous coverage of the pesticide industry’s egregious misbehavior, and of glyphosate, the world’s most widely used herbicide. FOE calls the report the “first comprehensive review” of the Bayer/Monsanto “defense strategy” employed in attempts to deny science, manufacture doubt, and discredit critics who have researched, reported on, and/or advocated against the company’s flagship glyphosate products because […]

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25
Nov

Hormone Mimicking Properties of Glyphosate Weed Killer and Related Compounds Increase Breast Cancer Risk

(Beyond Pesticides, November 25, 2022) A study published in Chemosphere adds to the growing body of research demonstrating the endocrine (hormone) disrupting effects of glyphosate play in breast cancer development. Exposure to the herbicide glyphosate and other glyphosate-based herbicides (GBHs) at high concentrations mimics the estrogen-like cellular effects of 17β-estradiol (E2), altering binding activity to estrogen receptor α (ERα) sites, thus causing fundamental changes in breast cancer cell proliferation (abundance).  Glyphosate is the most commonly used active ingredient worldwide, appearing in many herbicide formulas, not just Bayer’s (formerly Monsanto) Roundup®. The use of this chemical has been increasing since the inception of crops genetically modified to tolerate glyphosate over two decades ago. The toxic herbicide readily contaminates the ecosystem with residues pervasive in food and water commodities. In addition to this study, literature proves time and time again that glyphosate has an association with cancer development, as well as human, biotic, and ecosystem harm. Therefore, advocates point to the need for national policies to reassess hazards associated with disease development and diagnosis upon exposure to chemical pollutants. The researchers note, “The results obtained in this study are of toxicological relevance since they indicate that glyphosate could be a potential endocrine disruptor in the mammalian system. Additionally, […]

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21
Nov

EPA’s Deficient Pesticide Analysis Contributes to Ecological Decline

(Beyond Pesticides, November 21, 2022) Once again, the Environmental Protection Agency (EPA) has registered a new pesticide without performing a thorough review of its impacts on biodiversity as well as threatened and endangered species. Inpyrfluxam was registered in 2020 and only after being sued by the Center for Biological Diversity for failure to comply with the Endangered Species Act (ESA) did EPA commit to completing draft effects determinations by Fall 2022. Once again, EPA’s draft biological evaluation is incomplete and inadequate. EPA is accepting comments on its draft biological evaluation at Regulations.gov.  Tell EPA and Congress that Pesticide Registrations Require Complete Science. The Review of Inpyrfluxam is Incomplete and Inadequate.  The agency’s draft effects assessment is flawed and incomplete. We share the details because it shows that EPA is out of step with the science and its regulatory responsibility when it comes a thorough review for ecosystem effects of pesticides.   The agency used fish early life stage (ELS) tests to estimate chronic fish toxicity. This is inappropriate. The fish ELS is a sub-chronic test of sensitive life stages. Although it is often used as a surrogate or predictor of chronic toxicity, it does not adequately address potential adverse effects on reproduction or transfer of the test chemical to eggs/offspring […]

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11
Nov

Weed Killer Use Destroys Soil Life and Ecosystems, Paper Finds

(Beyond Pesticides, November 11, 2022) A paper published in Trends in Ecology & Evolution in late October sounds an unnerving alarm about the globally ubiquitous use of herbicides and the ecological destruction being caused. It asserts that widespread environmental contamination with these herbicide compounds is influencing soil, plant, and animal microbiomes in ways that are not only not well understood, but also, can have significant impacts on the functioning of organisms and their ecosystems — with evolutionary implications. Impacts of herbicides on microbiota in soils include, for example, those on nutrient cycling, and altered organism and plant performance, which can affect pollination and animal consumption of plants. This research reinforces what Beyond Pesticides wrote in covering a 2021 study: “The popular herbicide glyphosate negatively affects microbial communities, indirectly influencing plant, animal, and human health. Exposure to sublethal concentrations of glyphosate shifts microbial community composition, destroying beneficial microorganisms while preserving pathogenic organisms.” Herbicides are a category of pesticide used to control weeds in agriculture and commercial forests, on managed landscapes, byways, gardens, and lawns, and directly on surface waters to control aquatic weeds. They are designed to kill “target” plant species considered undesirable in any of those circumstances. Herbicide use has exploded […]

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08
Nov

Glyphosate Induces Antibiotic Resistance in Deadly Hospital-Acquired Infection

(Beyond Pesticides, November 8, 2022) Glyphosate weed killers induce antibiotic resistance in deadly hospital-acquired bacteria, according to a new study published late last month in the journal Scientific Reports. This is the latest finding connecting commonly used herbicides to the rise of antibiotic resistant bacteria, with prior research showing glyphosate, 2,4-D, and dicamba able to create resistance in Salmonella and E. coli. While federal regulatory agencies continue ignore the role of pesticides in the development of antibiotic resistance, it is critical for states and localities to take action to protect their most vulnerable both from toxic exposure to these herbicides and the multitude of indirect effects caused by their use. This is all happening as antibiotic resistance is rising to dangerously high levels in all parts of the world, according to the World Health Organization. In the May 1, 2022 issues of the Bulletin of the World Health Organization, Samira Choudhury, PhD, et al. writes, “Often referred to as the silent pandemic, antimicrobial resistance claims the lives of over 700,000 people annually.” The authors continue, “A study suggests that if no actions are taken, antimicrobial resistance will cause 10 million deaths per year by 2050 and an economic impact of […]

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20
Oct

Glyphosate Based Herbicides and Bee Health: The American Bumble Bee

(Beyond Pesticide, October 20,2022) Exposure to environmentally relevant levels of glyphosate-based herbicides (GBHs) weakens bumblebees’ (Bombus Terrestris) ability to distinguish between colors or fine-color discrimination. According to research published in Science of The Total Environment, a lack of fine-color discrimination skills can threaten bumble bee survivability through impact on colony fitness and individual foraging success. Much research attributes the decline of insect pollinators (e.g., commercial and wild bees and monarch butterflies) over the last several decades to the interaction of multiple environmental stressors, from climate change to pesticide use, disease, habitat destruction, and other factors. In the U.S., an increasing number of pollinators, including the American bumblebee and monarch butterfly, are being added or in consideration for listing under the Endangered Species Act, with specific chemical classes like systemic neonicotinoid insecticides putting 89% or more of U.S. endangered species at risk. Pollinator decline directly affects the environment, society, and the economy. Without pollinators, many plant species, both agricultural and nonagricultural, will decline or cease to exist as U.S. pollinator declines, particularly among native wild bees, limits crop yields. In turn, the economy will take a hit, as much of the economy (65%) depends upon the strength of the agricultural sector. As science shows, pesticides are one of the most significant stressors […]

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13
Oct

Chemical Alterations in the Body from Glyphosate-Based Herbicide During Perinatal Exposure Induces Chronic Liver Injury

(Beyond Pesticides, October 13, 2022) Offspring’s exposure to glyphosate-based herbicides (GBHs) preceding and proceeding birth (perinatal) induces liver damage. A study published in Toxicology and Applied Pharmacology demonstrates the role excess iron in the body from GBH exposure plays in liver toxicity via an increased uptake of calcium and oxidative stress. The liver, the largest solid organ in the human body, is an essential part of the digestive system, responsible for blood detoxification, nutrient metabolization, and immune function regulation. The rates of chronic liver diseases are increasing, representing the second leading cause of mortality among all digestive diseases in the U.S. Because GBHs are ubiquitous in many herbicide products, studies report that these toxic chemical compounds are detectable in infants, children, and pregnant women. Children are particularly vulnerable to the impacts of pesticide exposure as their developing bodies cannot adequately combat exposure effects. Although studies show how chemical exposures affect overall human health, more research is now questioning how these toxic chemicals influence digestive health and the subsequent occurrence of diseases. Therefore, it is essential to understand how harmful chemical exposure impacts health and well-being during critical developmental periods. The study notes, “[T]he possible role played by perinatal exposure to GBH […]

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30
Sep

EPA’s Failure to Ban Glyphosate Keeps Burden of Protection with Consumers and Local and State Governments

(Beyond Pesticides, September 30, 2022) In late September, the U.S. Environmental Protection Agency (EPA) announced the withdrawal of its Interim Decision on glyphosate, the active ingredient in multiple herbicides, most notably Monsanto’s (now Bayer’s) Roundup. The action follows a slew of developments related to the herbicide, including: the 2015 International Agency for Research on Cancer’s declaration of its carcinogenicity; legal judgments and massive rewards to victims who developed cancers after chronic exposures; advocate efforts to get EPA to recognize the dangers of, and curtail, its use; and pushback from industry — most of the latter two coming in the form of litigation. The withdrawal of that Interim Decision means, on the ground that this harmful compound can continue to be used until a next regulatory review decision by EPA. Beyond Pesticides has long been engaged in education on and advocacy against glyphosate use, and was a plaintiff in the 2020 lawsuit, with the Center for Food Safety (CFS), et al., against EPA for this 2020 Interim Decision (ID). Under FIFRA (the Federal Insecticide, Fungicide and Rodenticide Act) each pesticide must be reviewed by EPA every 15 years “to ensure that existing pesticide products continue to perform their intended function without […]

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30
Aug

New Evidence Shows Roundup Damages the Nervous System

(Beyond Pesticides, August 30, 2022) Minuscule amounts of the weed killer Roundup and its active ingredient glyphosate can result in damage to the nervous system, finds research led by scientists at Florida Atlantic University, published in Scientific Reports. As hundreds of millions of pounds of glyphosate continue to be sprayed on hundreds of millions of acres of land throughout the United States each year, recent data indicate that four out of five U.S. children and adults contain detectable levels of glyphosate in their bodies. The pesticide industry and its paid supporters tell Americans that although contamination is widespread, the levels found in humans are not cause for concern. This latest research significantly undermines that specious argument, finding impacts on critical nervous system processes at levels 300 times less than the lowest suggested amount on the Roundup label. “It is concerning how little we understand about the impact of glyphosate on the nervous system,” said Akshay S. Naraine, MSc., coauthor and a PhD student at Florida Atlantic University. “More evidence is mounting for how prevalent exposure to glyphosate is, so this work hopefully pushes other researchers to expand on these findings and solidify where our concerns should be.”  To investigate the […]

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26
Aug

As Thyroid Cancer Cases Rise, Study Finds Pesticides Link

(Beyond Pesticides, August 26, 2022) New research from a team in California finds one-third of pesticides it reviewed — including glyphosate, paraquat dichloride, and oxyfluorfen — to be associated with the development of thyroid cancer. Researchers investigated the links between exposure to pesticides — including 29 that cause DNA cell damage — and the risk of this cancer. The researchers also find that in all the single-pollutant models they employed, paraquat dichloride — a widely used herbicide — was linked to this cancer. In 2021, Beyond Pesticides covered research by the U.S. National Institutes of Health (NIH) that demonstrated that exposures to lindane and metalaxyl also cause heightened risk of thyroid cancer. These study findings add to the already considerable concern about pervasive pesticide exposure — not only among farmers and applicators, but also in the general population. It is worth noting that, in addition to elevated thyroid cancer risks, multiple pesticides can cause other health damage. Paraquat is also acutely toxic, and can cause longer-term reproductive, renal, and hepatic damage to humans; it is toxic to birds, fish, and other aquatic organisms, and slightly so to honeybees. Glyphosate, as Beyond Pesticides has written frequently, is carcinogenic, and is associated […]

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04
Aug

Glyphosate Weed Killer Crosses Blood-Brain Barrier, Linked to Alzheimer’s and Other Neurodegenerative Diseases

(Beyond Pesticides, August 4, 2022) An Arizona State University (ASU) study shows that the popular herbicide glyphosate can infiltrate the brain through the blood (blood-brain barrier), increasing neurological disease risk. The blood-brain barrier filters various molecules entering the brain from the circulatory system. However, the permeation of glyphosate molecules elevates the expression of TNFα and the accumulation of soluble beta-amyloid (Aβ) proteins in the brain and has associations with immune, inflammatory, and neurodegenerative diseases like Alzheimer’s disease (AD). More than 6 million people in the U.S. are living with Alzheimer’s, and cases are expected to double by 2050. Although Alzheimer’s research has focused heavily on finding genetic causes of the disease, fewer than half of cases are genetic. Thus, researchers are now evaluating how environmental contaminants may increase disease risk. Over 300 environmental contaminants and their byproducts, including pesticides, are chemicals commonly present in human blood and urine samples and can increase neurotoxicity risk when crossing the brain barrier. Therefore, studies like this highlight the importance of understanding how chemical accumulation in the body can impact long-term health and disease prognosis. The study notes, “Brain glyphosate correlates with increased TNFα levels, suggesting that exposure to this herbicide may trigger neuroinflammation in the brain, which may […]

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