(Beyond Pesticides, July 24, 2026) A study published in the Journal of Hazardous Materials finds that the cumulative impact of the pyrethroid insecticide flumethrin and the triazole fungicide hexaconazole “induced [an] acute synergistic effect” in honey bees (Apis mellifera L.). While extensive independent scientific research has shown the debilitating and deadly effects of neonicotinoid insecticides on managed and native bee populations, this study adds to the body of science that establishes the range of threats from pesticide use leading to unsustainable bee decline. Synthetic pyrethroid insecticides are widely used products that are synthesized derivatives of pyrethrins found in pyrethrum, an extract of dried chrysanthemum flowers. Compared to their natural counterpart, synthetic pyrethroids take significantly longer to degrade in the environment and thus pose longer-term risks to humans and wildlife. The chemicals interfere with the proper function of the body’s sodium channels, resulting in harm to the central nervous system. Acute symptoms of poisoning in humans include headache, nausea, incoordination, tremors, and facial swelling, with severe incidents causing diarrhea, convulsions, paralysis, and death. Studies associate numerous synthetic pyrethroids with endocrine disruption, which can result in a range of neurological, reproductive, and organ system effects, including breast cancer and numerous other cancers. […]

(Beyond Pesticides, July 22, 2026) A study of aquatic macroinvertebrates, including insects in their nymph and larval stages, snails, worms, crayfish, and clams, finds that pesticide exposure leads to biodiversity declines. Published in Environment International, this research also finds that multiple stressors and chemical mixtures increase ecosystem effects. “The individual and interactive impacts of pesticide contamination and other environmental stressors on freshwater macroinvertebrates remain insufficiently quantified under real-world, multi-stressor conditions,” the authors note. This research addresses that gap, identifying pesticide pollution as a threat to aquatic organisms and ecosystem functioning. In studying the Wei River Basin, one of the most intensively managed agricultural and urban regions in China, the data reveals that “pesticides contributed more than 40% to both [Alpha] α-diversity loss (species richness) and [Beta] β-diversity nestedness [hierarchical interconnectedness], exceeding the combined effect of the other factors that were considered.” Additional results, such as interactive effects between pesticides and land use, show that during the dry season there is “a 2.1-fold increase in functional sensitivity and a 56% rise in interaction contributions.” Ecological harm thresholds are also highest for the neonicotinoid insecticide imidacloprid, followed by the herbicides hexazinone, atrazine, and simazine. Study Importance Freshwater ecosystems, such as lakes, rivers, […]

(Beyond Pesticides, July 16, 2026) In a study published in the British Ecological Society, researchers in Germany determined that flower strips and legume mixtures hold statistically significant benefits in terms of natural pest control. This comes as no surprise to organic farmers and landscapers, as well as public health and environmental advocates, who have witnessed the impact of transitioning to organic, regenerative, and agroecological land management practices and systems on the grounds of public health, biodiversity, and climate resilience. As part of the methodology to determine the contribution of flowering strips to insect management, “The area between the flowering strips received no insecticides, while the remaining outer part of the fields was treated according to usual farm management practices.” Presumably this offered some control for contamination from neighboring fields treated with pesticides, which in other studies have been shown to result in harm to ecosystem services for managing insects.  Methodology and Main Findings The researchers conducted a replicated, randomized experimental design for this study methodology, based on 10 commercial sugar beet fields during the 2021 to 2022 season. The fields consisted of 5.8 hectares (ha) to 26 ha (approximately 14 to 64 acres, with a field size of 12.8 ha […]

(Beyond Pesticides, July 14, 2026) “Around the world, children are born into a landscape where the doubling of pesticide use since 1990 has made these chemical substances ubiquitous in our soil and food,” said George Laryea-Adjei, PhD, UNICEF Global Program Division Director at the release of a new report—Underestimated and Overlooked: The Silent Impact of Pesticides on Children—published through an initiative of the United Nations Children’s Fund. He continued: “This report reveals a reality that is as urgent as it is ‘silent’: the profound impact of pesticides on the health and rights of the world’s most vulnerable citizens: children.” Many important truths in this report speak to the advocates, public health professionals, and concerned families across the globe who are researching, writing, teaching, and advocating for public health and environmental protection from toxic chemicals. This report identifies the failure of existing regulatory structures to ensure basic protections and cites scientific evidence, investigative reporting, and litigation, concluding that synthetic pesticides are inconsistent with sustainability and human health. Main Findings This report was coauthored by UNICEF staff and numerous stakeholder groups, including nonprofits, regulators, and academic institutions. The authors cite numerous data sources, including existing peer-reviewed science, World Health Organization (WHO) and […]

(Beyond Pesticides, July 9, 2026) In a study published in PLOS One, researchers identify “ecological cascades triggered by intensive, calendar-based pesticide applications,” resulting in “agricultural pesticide regimes [that] fundamentally restructure insect foraging networks through complex, poorly understood community-level pathways.” In comparing chemical-intensive apple orchards with adjacent pesticide-free cemeteries, this study documents the impacts on insect biodiversity with exposure to pesticides, noting that in areas without pesticide applications insect abundance and richness is higher and plant-pollinator networks are stronger. When applying pesticides during peak insect activity, apple orchards create ecological traps and insect pollinator foraging network disruption with cascading effects through the ecosystem that extend beyond acute toxicity. As the authors explain: “The resulting exposure drives sublethal behavioural changes, forcing insects into narrower dietary niches and collapsing the complex web of plant-pollinator interactions. The final outcome is a functionally homogenized insect community, stripped of its diversity and resilience.” To sustain ecological integrity and insect biodiversity, as well as the subsequent ecosystem services they provide, such as pollination, pesticide-free habitats are essential. This study adds to the wide body of science that supports the urgent need for a widescale transition to organic agriculture and land management. Study Importance and Background Nontarget and […]

(Beyond Pesticides, July 8, 2026) This piece reports on yet additional new studies linking pesticides to breast cancer. Numerous recent reviews make it clear that pesticide exposure per se raises the risk of breast cancer, across a wide swath of pesticide types. One would think that with the body of science linking breast cancer with pesticide exposure, covered extensively by Daily News and the Pesticide-Induced Diseases Database, a scientific-based regulatory system would respond with a sense of urgency. And yet, that is not the case, as the U.S. Environmental Protection Agency (EPA) establishes “acceptable” rates of disease for individual chemicals or chemical families, but does not evaluate patterns of disease linked to multiple chemical exposure. And so, breast cancer is the most common cancer diagnosed in U.S. women, and women turn to medical intervention with drugs, early surgical intervention, and targeted radiation. Yet, the disease, principally associated with environmental rather than hereditary factors, and treatment cause severe disruption to the lives of women and their loved ones and are devastating to quality of life, while clinical responses can have adverse side effects. Many different pesticides affect cellular processes and structures, including alteration of genetic material, endocrine disruption, cell apoptosis, cell […]

(Beyond Pesticides, July 7, 2026) An analysis of scientific literature on pesticide contamination in infant formula reveals a public health issue of food safety for young children with potential lifelong impacts, as published in Environmental Toxicology and Pharmacology. Through a systematic review of research from 1975 to 2025, the authors, from the Department of Public Health and Infectious Diseases at the Sapienza University of Rome (Italy), find residues of pesticides that are linked to deleterious health impacts in infant formula, including insecticides such as organochlorines, organophosphates, pyrethroids, and neonicotinoids, and many herbicides. As the researchers share, the results highlight that: “[T]he contamination of infant formula does not concern a single class of substances, but manifests itself as a heterogeneous and simultaneous set of risks: pesticide residues, heavy metals, persistent environmental contaminants, mycotoxins and compounds released from packaging materials can coexist within the same product. This co-presence of contaminants of different origins confirms that the problem cannot be traced back to a single critical point, but reflects a complex supply chain context, in which each stage—from raw material production to industrial processes, storage and packaging—can contribute to the infant’s final exposure.” In confirming the presence of multiple pesticides within infant formula, […]

(Beyond Pesticides, July 1, 2026) A review in the International Journal of Cancer links pesticide exposure, particularly in areas with high agricultural crop density, to increased risks for childhood cancers. The team of researchers from the University of Nebraska-Lincoln and University of Nebraska Medical Center, in analyzing epidemiologic studies published between January 1980 and September 2022, says that “this scoping review affirms that a robust body of epidemiology literature already informs how parental and childhood exposure to environmental chemical exposures can be associated with children’s incidence of pediatric leukemia and brain cancer.” The scientific literature shows that pediatric cancer, which is a significant cause of morbidity and mortality in children, is associated with exposure to residential pesticides, pesticides ingested through drinking water, parental exposure, and in areas with close proximity to agricultural areas where pesticides are used. Background According to the American Childhood Cancer Organization, over 15,000 children in the U.S. are diagnosed with cancer each year, with pediatric cancer as the second leading cause of death in children 5–9 years of age and the third leading cause of death in children ages 10–14. (See here.) In agricultural states, such as Nebraska, Iowa, Minnesota, Kansas, Illinois, Ohio, and Missouri, incidence […]

(Beyond Pesticides, June 25, 2026) In a study comparing pesticide active ingredients (isolated single chemicals) with full pesticide product formulations containing added ingredients (the packaged products that can contain carriers, sticking agents, emulsifiers, etc.), researchers find the full formulation to be generally more toxic. The research evaluates acute and chronic exposures of four mosquito adulticide active ingredients (AIs), three product formulations, and one biological larvicide pesticide formulation containing Bacillus thuringiensis israelensis (Bti) on honey bee larvae in vitro and finds that three of the four exceed levels of concern (LOCs) set by the U.S. Environmental Protection Agency (EPA). EPA publishes Guidance for Assessing Pesticide Risks to Bees in which it identifies levels of harm. The scientists who conducted the study, published in Environmental Challenges, are based at the University of Florida and Auburn University. This study references Bti (Vectobac12AS) as the least toxic product, since the acute LD50 (lethal dose that kills 50% of the test population) is well below EPA-set LOCs. However, the study only focused on whether Bti harms honey bees. In contrast, there are some indications of its potential adverse effects on other beneficial insects, moths, and butterflies (see fact sheet here) and aquatic life, including studies […]

Image: Art of Life Page submission from Jesse Yow, “Honeybee Pollinating Citrus Blossom.” (Beyond Pesticides, June 22, 2026) National Pollinator Week, June 22-26, 2026, celebrates all pollinators and the ecosystem services they provide. With a theme of “Life on a Leaf… From Bloom to Buzz! An Organic Solution for Plants and Pollinators” and in recognition of the importance of pollinators and biodiversity to a healthy environment and healthy people, Beyond Pesticides announces a week of activities and actions!  Pollinators—bees, butterflies, birds, bats, and other organisms—make a critical contribution to plant health, crop productivity, and the preservation of natural resources, but their existence is threatened by pesticide-contaminated habitats! Throughout the week, we will suggest actions that you can take to promote the health of pollinators.   The first step is providing a safe place for pollinators to live, eat, reproduce, and take refuge from predators and adverse weather, which can include establishing pollinator-friendly plants as both habitats and food sources.  Monday—Juneteenth and Environmental Justice  Dr. Martin Luther King Jr. famously stated, “All life is interrelated.” Justice for all people converges with the protection of biodiversity, health, and climate. If we are not protecting the most vulnerable in society, we ultimately adversely affect the entire society because all people are intricately linked through the web of life. By […]

(Beyond Pesticides, June 18-19, 2026) Friday, June 19 is Juneteenth, a commemoration of the abolition of slavery and a celebration of human freedom. “Injustice anywhere is a threat to justice everywhere,” Reverend Doctor Martin Luther King, Jr proclaimed. This truth raises societal concerns of continuing systemic environmental racism and institutional failures of predominantly white institutions and the need to protect those at disproportionate risk, specifically Black, Indigenous, and People of Color (BIPOC) communities, from agricultural and industrial pollution. [Juneteenth is a celebration of freedom for the last 250,000 enslaved people in Galveston, Texas, but it is also a reminder that justice has not historically been “swift” or complete for Black Americans. The holiday commemorates the abolition of slavery in Texas on June 19, 1865, two and a half years after the Emancipation Proclamation. Juneteenth, officially recognized as a federal holiday since 2021, commemorates the arrival of Union soldiers in Galveston, Texas, to free enslaved people per the Emancipation Proclamation that was issued two and a half years prior. While June 19, 1865, does not mark the legal end of slavery nationwide, it was a crucial moment in the fight for freedom and continues to highlight the ongoing fight for human […]

(Beyond Pesticides, June 17, 2026) A study out of Michigan State University reviews robust county-level data on pesticide use and breast cancer incidence rates, determining that there are “modest positive associations” in rural counties in the United States. The findings were published in Cancer Causes & Control. Public health and environmental advocates cite the proliferation of published, peer-reviewed research, like this new study, in support of a societal imperative to eliminate harmful agrichemicals and transition to organic practices. The U.S. and countries worldwide have standards for certified organic production, similar to the U.S. Organic Foods Production Act, that establish required practices, a national list of allowed and prohibited substances, public oversight and a stakeholder board with authority over allowed inputs, certification and inspection of on-farm practices, and an enforcement system to ensure standards compliance. There is limited federal investment in growing the organic sector, despite its productivity, profitability, and protection of healthy ecosystems. The study adds to the body of science that illustrates dramatic deficiencies in the Federal Insecticide, Fungicide and Rodenticide Act (FIFRA) under which the U.S. Environmental Protection Agency (EPA) and other federal statutes fall short in addressing the complex exposure patterns and adverse human and environmental effects, […]

(Beyond Pesticides, June 12, 2026) In a literature review published in Caspian Journal of Environmental Sciences, researchers assessed 27 peer-reviewed studies conducted between 2011 and 2025 on the adverse impacts of insecticides, including neonicotinoids, pyrethroids, organophosphates, chlorpyrifos, and fipronil. Across agricultural and suburban environments, pesticides were detected in the majority (88 percent) of samples. This review builds on the continuous flow of science that highlights the adverse impacts of synthetic pesticide dependency on ecosystems and wildlife that are essential to global biodiversity. Main Findings The researchers, based at a variety of research institutions in Jordan, Uzbekistan, Iraq, and India, refined their search to 27 studies after screening for geographic diversity and empirical robustness; for example, they excluded studies that did not include empirical data, relied solely on nonagricultural contexts, or only assessed exposure through urban wastewater exclusively. Toxicological data assessed include pesticide occurrence, toxicity, and biological responses. This literature review is not a meta-analysis, but rather a narrative synthesis of various findings. The main findings include: Documented Widespread Pesticide Occurrence. In the United States, based on data collected between 2013 and 2017, 88 percent of water samples contained pesticides, with a median of 18 compounds across all sites and 24 […]

(Beyond Pesticides, June 10, 2026) Adding to the wide body of science connecting the weed killer paraquat to deleterious health and environmental effects, Investigate Midwest recently released an investigative news article connecting air emissions of paraquat from chemical plants in the Mississippi Basin to Parkinson’s disease, among other adverse health effects. The herbicide is also fatal to humans with a single sip, as documented in the article, entitled “This herbicide is so toxic it’s been banned in over 70 countries. But plants in the South are releasing it into the air.”  In capturing the story of Wayne County, Mississippi, where approximately 20,000 people live surrounded by forest and farmland, Investigate Midwest sheds light on the connection between the Sipcam Agro plant that processes and emits paraquat. The plant is located in the county with among the highest U.S. rates of Parkinson’s disease deaths, the top 7% of all U.S. counties.  Background on Paraquat  Paraquat has been on the market since the 1960s, created by a predecessor of Syngenta. In March of this year, Syngenta announced it would stop producing paraquat in the UK after thousands of lawsuits, primarily by farmers and farmworkers, cite Syngenta’s failure to warn of adverse health effects like Parkinson’s disease. Stopping the production of paraquat in the UK will not prevent paraquat from entering the U.S., as “other companies and other facilities—like the one in Wayne County—will fill the gap, likely increasing the amount of paraquat they handle.”  According to previous data from the U.S. Geological Survey, approximately 11 to 17 million pounds of paraquat were sprayed annually in 2017, which may […]

(Beyond Pesticides, June 8, 2026) When the Trump administration announced that it was shutting U.S. Department of Agriculture’s (USDA) Beltsville Agricultural Research Center (BARC) in Beltsville, Maryland, U.S. Representative Jamie Raskin (D-MD) released the following statement: “This is a betrayal of American farmers, and an attack on the federal workforce that will severely damage services that the American people depend on. We are disappointed but not surprised that the Trump administration is continuing its attacks on the federal workforce, this time through wasting taxpayer dollars to relocate key USDA facilities. Let us be clear: these haphazard, unlawful relocations do not save taxpayer dollars or improve agency efficiency. We’ve seen this tactic before, and we know that it only results in brain drain, crushed morale, and cuts to vital programs American farmers depend on. We will continue to stand up for the dedicated federal workers who provide critical services to our nation as they navigate these relocations, mass firings, and the administration’s continued attacks on the civil service.” In the face of this action, which is now taking place, Beyond Pesticides has released an action to tell Congress and USDA to preserve the Beltsville agricultural research facilities that support farming and […]

(Beyond Pesticides, June 4, 2026) In a study published in Perspectives in Ecology and Conservation, researchers in Brazil find that organic farming coupled with agroecological conservation practices “promote[s] biodiversity in agricultural landscapes.” The proxy for biodiversity in this study is anurans, a type of frog or toad native to the Brazilian Pampa—a section of the South American Pampas grasslands, a globally underrecognized biodiversity hotspot. According to a scientific report reviewed by Mongabay in 2024, “nearly a third of the Brazilian portion…has been lost since 1985, largely to agricultural expansion and forestry plantations.” In the U.S. context, public health and environmental advocates continue to call for the transition to organic land management as a solution that validates the ecosystem services that biodiversity-forward agricultural systems can provide under values-aligned stewardship. Methodology and Main Findings The authors in this study, researchers at the Universidade Federal do Rio Grande do Sul, surveyed 26 artificial ponds across 16 family farms with different land management systems—9 organic farms and 7 conventional farms—located in the Serra do Sudeste region of the Brazilian portion of the Pampa grasslands. All farms were sampled three times during the 2023 to 2024 breeding seasons (twice in the October to November 2023 […]

(Beyond Pesticides, June 3, 2026) A study, published in PeerJ today, by researchers from the University of Wisconsin-Madison in the U.S. and the University of Pisa in Italy, finds that the widely used fungicide fludioxonil and its breakdown products, including a ‘forever chemical’ per- and poly-fluoroalkyl substance (PFAS), threaten environmental and human health. Through a review of scientific literature (from 2021-2025) of the ecological and health effects of fludioxonil, the authors find evidence of this chemical’s mechanisms of toxicity, including oxidative stress, that are enhanced as it degrades in the environment. Oxidative stress occurs when there is a disruption of normal cell-signaling and molecular damage, leading to an imbalance of reactive oxygen species (ROS) and free radicals (unstable oxygen molecules) that the body is unable to detoxify. In particular, sunlight exposure causes fludioxonil to break down into a PFAS that is linked to adverse health implications for the environment, wildlife, and humans.  One of the authors, Warren Porter, PhD, is a board member for Beyond Pesticides and presented at the 2021 National Pesticide Forum. Dr. Porter is an emeritus Professor of Integrative Biology and an Ardath and Robert Rodale Professor of Environmental Toxicology, with previous research showing that combinations of commonly used agricultural chemicals in concentrations that mirror levels found in groundwater can significantly influence immune, endocrine, and neurological health in animals. His research also links pesticide exposure in utero to impaired learning, changes in brain function, and […]

(Beyond Pesticides, May 29, 2026) In a new study published in Environmental Pollution, researchers detected 15 currently used pesticides (CUPs)—including 10 pesticide compounds detected but not applied within the study’s managed fields— in the pollen of beehives in an environment meant to reflect a typical honey bee foraging range. The detection of pesticides that were not directly applied within the study’s target radius demonstrates the pervasiveness of pesticide drift into soils, streams, and bodies. In this context, public health and environmental advocates continue to call for a wholesale transition to organic land management. The findings are particularly concerning given the toxicity hazards to honey bees associated with pesticide exposure in this study and bolstered by other studies, resulting in documented threats to their health—as reviewed in this Daily News below. Methodology and Background Researchers at the University of Bern and Agroscope, the Swiss government’s agricultural research arm, conducted this research with agricultural land-use data for 2023 and 2024 from the Zurich (provincial/Canton) government. The study area was defined as a 2-kilometer radius around the hive placement site, with 4 active hives over the course of a two-year period (April 10, 2023, through May 3, 2024). The land use within the […]

(Beyond Pesticides, May 27, 2026) In a perspective analysis published in Frontiers in Agronomy, researchers at the University of Nebraska and Serbia’s Maize Research Institute point out the growing availability of organic-compatible herbicide controls (referred to as bioherbicides) as an opportunity to “complement crop diversification and improve soil health, they may serve as a foundational component of agroecological cropping systems, driving a transition toward reduced external inputs and strengthening essential ecosystem services for long-term sustainability.” The researchers distinguish between biopesticides based on their mode of action, regulatory status, including whether they are compliant to federal organic standards as defined under Organic Food Production Act (OFPA), the National List of Allowed and Prohibited Substances, and guidance from the National Organic Program at the U.S. Department of Agriculture (USDA). The article references biopesticides listed by the Organic Materials Review Institute (OMRI), which undertakes its own review process contingent on three core factors, according to the authors: Must not be prohibited on the National List of Allowed and Prohibited Substances, as defined here; Manufacturing process does not include prohibited methods (genetic engineering, ionizing radiation, etc.); and All ingredients are compliant with organic standards and do not have any prohibited contaminants (contamination of crops, […]

(Beyond Pesticides, May 21, 2026) An important study by cancer researchers in Barcelona, Spain at once shows a path forward in illuminating the long-term, multi-generational, health damage from pesticide exposures and demonstrates how extraordinarily dilatory U.S. agricultural regulators are in protecting public health. The study, “Epigenetic fingerprints link early-onset colon and rectal cancer to pesticide exposure,” found a robust association between methylation markers (for gene expression associated with cancer) and exposure to a number of pesticides, with the herbicide picloram having the strongest link. Other pesticides with strong associations include the weedkillers atrazine, glyphosate, nicosulfuron, and insecticide esfenvalerate. Colon cancer is expected to double, and rectal cancer to quadruple, in this young age group by 2030. This sharp contrast between age groups suggests that environmental exposures, rather than strictly genetics, are involved. The authors are concerned with the alarming rise in early onset colorectal cancer (EOCRC) not only in the highly developed world but also in less-industrialized countries. This increase appears to be connected with age cohorts and the differences in lifestyle and environmental exposures between older and younger cohorts. According to a commentary on the study by researchers from the Dana-Farber Cancer Institute, in the U.S., the incidence of colorectal […]

(Beyond Pesticides, May 19, 2026) Research continues to mount on organically managed systems, reinforcing the importance of fostering soil health to ultimately reduce dependency on increasingly expensive petrochemical pesticides and fertilizers, ultimately making food more affordable. Research published in Journal of Soil Science and Plant Nutrition determines that long-term organic management enhances various soil health indicators to a greater degree than conventionally managed systems. The organic soil qualities include greater microbial diversity, increased microbial biomass carbon (MBC), higher dehydrogenase activity (DHA), and higher alkaline phosphatase activity (ALP), among other favorable outcomes. The positive impacts of organic land management on soil health, microbial diversity, and biodiversity cannot be overstated, given the existential threats imposed on the planet by petrochemical-based agricultural practices. Methodology and Main Findings This study was conducted at the Central Arid Zone Research Institute (CAZRI) in Rajasthan province, India. The annual average rainfall for this region is 100 mm (about 4 inches) and 450 mm (18 inches), with nearly 90 percent of that rainfall falling between June and September. Both the organic and conventional sites consist of loamy soils and shared agro-climatic conditions. The organic site was established in 2008 and certified by the Rajasthan State Organic Certification Study, […]

(Beyond Pesticides, May 14, 2026) In a new report by Friends of the Earth, federal organic standards as defined by the Organic Foods Production Act (OFPA) are identified as a bedrock “Threshold Program” with high minimum standards that combine three core features—synthetic pesticide and fertilizer prohibitions, soil health requirements, and third-party verification and enforcement systems. In other words, the review of thirteen regenerative and regenerative organic labels and enforcement systems must be built on enforceable standards. This criterion is foundational to the growth of the U.S. organic sector to over $76.6 billion in domestic sales in 2025, expanding at a pace nearly twice the rate of growth (6.8 percent) compared to the national agricultural sector more broadly (3.4 percent). Main Findings The report focuses on the principles of 13 different regenerative labeling and certification systems on the market, including a comparison of federal organic standards and the U.S. National Organic Standards Board (NOSB). The main findings and features of the report include: “Truly regenerative agriculture must phase out dependency on agrochemicals that undermine the very ecological functions on which resilience depends.” The various “regenerative” agriculture labels currently on the market are significantly varied in terms of pesticide and fertilizer restrictions […]

(Beyond Pesticides, May 13, 2026) Published in Toxics, a review finds that per- and polyfluoroalkyl substances (PFAS) can heighten the risks to exposed organisms from environmental contaminants. Mixtures of these compounds can negatively impact the nervous, cardiovascular, immune, and reproductive systems, particularly in aquatic organisms, and threaten overall biodiversity. The review highlights synergistic effects (greater in combination) observed in mixtures, such as PFAS with pesticides and microplastics, that can cause enhanced oxidative stress, neurotoxicity, developmental defects, and reproductive dysfunction, among others. “The objectives were to evaluate the toxicological effects of mixtures of the selected contaminants with PFAS on aquatic organisms to better understand biological responses in animals,” the study authors explain. “Based on our review, data suggest that PFAS can modify the toxicity of co-occurring pollutants.” Background PFAS were first created in the 1930s and have since been used in many industries and in the production of many products. The multitude of PFAS sources and exposure routes leads to widespread contamination of the environment and organisms. PFAS in agriculture represents a large source, as PFAS can be pesticide active ingredients, used in the plastic containers that pesticides are stored in, and as surfactants in pesticide products. Additionally, PFAS are used in many other […]