(Beyond Pesticides, March 11, 2025) A study in Toxics analyzes ipconazole, a triazole fungicide often used as a coating on treated seeds and as a foliar treatment on the leaves of plants. “Triazole pesticides are widely used throughout the world, but their abuse causes toxic effects in non-targeted organisms,” the researchers state. In the current study, unintended reproductive effects are noted in male sheep (ram) and pigs (also known as porcine or swine). This research focuses on the impact of ipconazole exposure on spermatozoa (sperm) in two mammal species and finds spermiotoxicity through significantly reduced sperm viability, as well as alterations in enzyme and gene expression related to fertility.  “To our knowledge, this is the first study to evaluate the cytotoxic effect of the triazole ipconazole on mammalian spermatozoa,” the authors share. This analysis utilizes semen samples from the Reproductive Biotechnology Laboratory of the Major National University of San Marcos in Lima, Peru, the university where six of the nine researchers are Faculty of Veterinary Medicine.   “The sperm were exposed to ipconazole concentrations of 1, 5, 10, 50 and 100 µM, and to a control without ipconazole,” they say. Similar concentrations have been used in previous cytotoxicity studies with ipconazole. […]

(Beyond Pesticides, March 7, 2025) In honor of International Women’s Day on Saturday, March 8, 2025, Beyond Pesticides sheds light on the disproportionate risks to women from toxic chemicals that are often unaccounted for and even dismissed throughout pesticide regulatory review and the underlying statutes. In a roundup of Daily News coverage in 2024, as well as the most recent scientific studies in 2025, on the scientific links between pesticide exposure and adverse effects in women, this article highlights the growing inequities in pesticide threats to women’s health.  Women farmers and farmworkers are particularly excluded when assessing pesticide risks. As previously reported by Beyond Pesticides, a study published in Occupational and Environmental Medicine finds that pesticide exposure, especially during puberty, can play a role in ovarian cancer development among female farmers. Although there are many studies that evaluate the risk for cancers among farmers, very few scientific articles cover the risk of ovarian cancer from pesticide exposure.  Additionally, this study suggests the role of hormones in ovarian cancer prognosis and development, highlighting an association with endocrine disruption. Endocrine disruption can lead to numerous health problems in multiple organ systems, including hormone-related cancer development (e.g., thyroid, breast, ovarian, prostate, testicular), reproductive […]

(Beyond Pesticides, February 20, 2025) Researchers at the University of Oregon found that the rollout of genetically engineered corn in the early 2000s, followed by exponential increases in glyphosate-based herbicides, “caused previously undocumented and unequal health costs for rural U.S. communities over the last 20 years.” Their results “suggest the introduction of GM [genetically modified] seeds and glyphosate significantly reduced average birthweight and gestational length.” The conclusions of this study emerge as fossil fuel advocates, including President Donald Trump, are mobilizing to pioneer “energy dominance” despite the market movement toward renewable energy. Just as chemical-intensive farmers and land managers continue to spray synthetic fertilizers and pesticides, a successful rollout of alternatives must rely on feeding the soil rather than the plant. Advocates continue to demand that elected officials and regulators embody the precautionary principle and scientific integrity in decision-making. Given the hostile federal climate on anything relating to holistic solutions, communities are coming together to move beyond input-dependent land management systems and adopt organic criteria of allowed and prohibited substances, mandatory public comment process, independent third-party certification, and a federal advisory board (National Organic Standards Board) consisting of farmers, environmentalists, consumers, scientists, economists, researchers, and other stakeholders, with binding recommendations […]

(Beyond Pesticides, February 11, 2025) In a Science of The Total Environment study, scientists test over 100 blue tit (Cyanistes caeruleus) and great tit (Parus major) birds’ nests for pesticide residues in comparison with the number of dead offspring and unhatched eggs within the nest. Fur-lined nests, from animals treated with ectoparasitic chemicals, expose birds to compounds that can impact reproductive success. The authors found fipronil, a phenyl pyrazole insecticide, in all nests, with the majority also containing the neonicotinoid insecticide imidacloprid and synthetic pyrethroid insecticide permethrin. The data shows higher insecticide levels are linked to increased offspring mortality and threaten biodiversity. This study highlights an important exposure route that is overlooked. “Although not all bird species use fur for nest building, a substantial number do, especially cavity-nesting species,” the researchers share. “Previous research found that 74% of studied woodland bird species in central Europe incorporated fur into their nests.” Many bird species in the U.S. also line their nests with fur, such as black-capped chickadees, tufted titmice, and chipping sparrows. While there is a wide body of science showing reproductive effects from pesticides, the researchers highlight the study’s novel design, saying, “To the best of our knowledge, no previous […]

(Beyond Pesticides, January 30, 2025) A research article in Biology Letters, published by The Royal Society, finds that the neonicotinoid insecticide imidacloprid disrupts survival and reproductive patterns in Bombus impatiens bumblebees. The study adds to the wide body of science highlighting how exposure to pesticides “can result in immediate mortality or cause long-term detrimental effects on pollinators‘ health, lifespan and reproductive success,” the authors state. The researchers performed two experiments to assess the effects of various concentrations of imidacloprid, one of which focuses on bees during diapause, a period of dormancy. “Wild bees, which provide the majority of pollination services worldwide, undergo an annual life cycle that includes a winter diapause, that can span over 75% of their life cycle and during which their metabolism, growth and development are halted,” the authors note. They continue: “The time spent in diapause can have lasting effects on pollinator fitness and their ability to establish nests or colonies in the following spring. This period is especially critical for social bee colonies, which are founded by a single queen after diapause and play a vital role in large-scale pollination.” Exposure to pesticides during diapause can occur while bee species overwinter in contaminated soils. In […]

(Beyond Pesticides, January 9, 2025) In a Frontiers in Public Health review article, researchers report on the wide body of science connecting adverse effects to female reproductive system, such as infertility, with exposure to endocrine-disrupting chemicals (EDCs). The authors call these effects a significant concern for public health, as there has been growing evidence of EDCs with risk factors for decreased fertility.   Infertility “affects a substantial proportion of the world’s population with approximately one in six people affected,” the researchers note. They continue: “Over the last 70 years, global fertility has been constantly in decline due to behavioral and societal changes… [E]merging evidence has shown that infertility incidence is linked to exposure to environmental factors such as tobacco, alcohol, and a wide range of endocrine-disrupting chemicals (EDCs) including pesticides (chlorpyrifos, glyphosate, dichlorodiphenyltrichloroethane [DDT] and methoxychlor), phthalates, polychlorinated biphenyls (PCB), dioxins, and bisphenols.”  In this review, over 100 studies are summarized to showcase the link between EDC exposure and reproductive effects in women, including infertility and related diseases such as endometriosis, premature ovarian insufficiency (POI), and endocrine axis dysregulation. The studies included investigating the “mechanisms by which EDCs cause ovarian aging, folliculogenesis, decrease of oocyte quality, ovulation disorders, development and receptivity […]

(Beyond Pesticides, November 13, 2024) A study in Chemosphere, conducted by researchers from the Institute of Biochemistry and Molecular Biology in Germany, reveals the varied lethal and sublethal effects of different glyphosate mixtures through tests on the South African clawed frog, Xenopus laevis (X. laevis). After exposing embryos to four glyphosate formulations, mortality, morphological defects, altered heartbeat rate, and impaired heart-specific gene expression are observed. Glyphosate, an herbicide and popular weed killer in many Roundup® products, is one of the most commonly detected pesticides in waterbodies worldwide, threatening aquatic organisms and overall biodiversity. This study investigates the effects of Glyphosat TF, Durano TF, Helosate 450 TF, and Kyleo, four formulations containing glyphosate, as compared to the effects of pure glyphosate on embryonic development in amphibians. The formulations consist of varying concentrations of the active ingredient glyphosate, as well as other active and inert ingredients. The authors share that, “Glyphosat TF contains 34% glyphosate and 10–20% d-glucopyranose, while Durano contains 39–44% glyphosate and 1–5% N–N-dimethyl-C12-C14-(even numbered)-alkyl-1-amines. In Helosate most of the ingredients are listed – 50–70% glyphosate, 1–10% isopropylamine, 1–3% lauryl dimethyl betaine, 0.25–1% dodecyl dimethylamine. Kyleo only lists the active ingredients glyphosate (27.9%) and 2,4-D (32%).” 2-cell stage embryos (early […]

(Beyond Pesticides, November 5, 2024) Published in the journal Frontiers in Toxicology, a recent study uncovers serious flaws in the pesticide registration process at the U.S. Environmental Protection Agency (EPA) with an in-depth evaluation of the agency’s failure to protect the public from the harmful effects of five neonicotinoid (neonic) insecticides—as mandated by the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) and amendments, including Food Quality Protection Act (FQPA) of 1996. This coincides with EPA’s ongoing review to renew their approval for the next 15 years (set to be announced in 2025). The report is based on the first comprehensive assessment of unpublished rodent-based Developmental Neurotoxicity (DNT) studies, conducted between 2000-2003 and submitted by pesticide manufacturers as part of the registration process. All five neonicotinoids evaluated—acetamiprid, clothianidin, imidacloprid, thiacloprid, and thiamethoxam—are associated with significant shrinkage of brain tissue at the highest dosage, according to EPA data reports (see acetamiprid, clothianidin, imidacloprid, thiacloprid, and thiamethoxam). However, with little or no data regarding the chemicals’ impacts at low and mid-level dosages, EPA has either failed to find a “No Observed Adverse Effect Level” (NOAEL) or, seemingly at random, set the NOAEL at the mid-level dosage. The evaluation suggests that perinatal exposure to […]

Beyond Pesticides (October 17, 2024) On September 30, 2024, the U.S. Environmental Protection Agency (EPA) opened a public comment period about production of specific per- and polyfluoroalkyl substances (PFAS, also known as ‘forever chemicals’)—including perfluorooctanoic acid (PFOA), perfluorononanoic acid (PFNA), and perfluorodecanoic acid (PFDA). EPA is collecting information on the fluorination process of high-density polyethylene (HDPE) and other plastic containers to inform possible regulatory action under the Toxic Substances Control Act (TSCA). The deadline for submitting comments is November 29, 2024. PFOA and twelve other PFAS compounds are created during the fluorination of HDPE plastic containers by Inhance Technologies, LLC, the only U.S. company manufacturing containers using this fluorination technique (see here). Studies by EPA, independent researchers, and the company itself demonstrate that PFAS leaches from container walls into contents, exposing millions to these toxic chemicals without their knowledge. EPA notes, “Long-chain PFAS like PFOA, PFNA, and PFDA build up in our bodies and the environment over time. Even small amounts can significantly contribute to people’s long-term exposure and health risk for cancers, impacts to the liver and heart, and immune and developmental damage to infants and children.” The adverse effects of PFAS exposure are linked to serious health issues, […]

(Beyond Pesticides, October 10, 2024) On September 16, 2024, the U.S. Environmental Protection Agency (EPA) announced an order allowing Kaizen Technologies LLC to sell off its chlorpyrifos-based insecticide product—Bifenchlor, a known neurotoxicant. This reverses an existing stocks agreement that Kaizen voluntarily negotiated with EPA in August 2022 when the company withdrew Bifenchlor from use. The agency attributes this new order to a November 2023 Eighth Circuit Court of Appeals decision, which vacated EPA’s prior 2021 chlorpyrifos ban on food crops (see here). EPA’s practice of permitting the sale and use of existing stocks of canceled pesticides has been a longstanding concern for public health and environmental advocates, as it enables the continued use of petrochemical pesticides that the agency has found to be dangerous. Chlorpyrifos, an organophosphate with adverse health effects on children (see here and here), is now the latest example.  In reporting on the almost unprecedented decision on August 7, 2024, to use its emergency authority to ban Dacthal/DCPA, Beyond Pesticides argues that the “Dacthal Standard” is a positive precedent, a step forward in modern regulatory history; however, EPA’s continued approval of chlorpyrifos’s existing stock, complicated by the 2023 court decision, may suggest otherwise.   As demonstrated historically with […]

(Beyond Pesticides, October 8, 2024) A comprehensive literature review in Endocrines, published in September, amasses hundreds of studies on endocrine-disrupting chemicals (EDCs) that showcase adverse effects on growth, development, reproduction, and metabolism. The authors, a team of scientists and academics from Brazil, shed light on the link between EDC use and thyroid dysfunction, leading to increasingly prevalent illnesses and deadly diseases.     EDCs are any synthetic or natural compounds that hinder endocrine system functions and create harmful effects on organisms. These chemicals can impact the thyroid gland, which is vital in producing hormones and plays a role in several body functions. As the researchers state, “Several EDCs have been classified as thyroid disruptors, impairing thyroid hormone [TH] production, synthesis, metabolism, transport, and/or actions. Notably, thyroid disorders are the second most prevalent endocrine disease worldwide, with incidence increasing significantly in recent years.” The authors continue, “[S]tudies have correlated this rise in thyroid dysfunctions and cancers with increased exposure to EDCs. Although many EDCs are linked to thyroid dysfunction, this review focuses on the deleterious effects of plasticizers, organochlorine pesticides, and per- and poly-fluoroalkyl substances on thyroid function. These contaminants are commonly found in food, water, and everyday products.” This review helps […]

(Beyond Pesticides, October 2, 2024) A comprehensive literature review in Ecotoxicology and Environmental Safety links a heightened risk of spontaneous abortion (SAB) with pesticide exposure. “The strengths of our study include being the first systematic review and meta-analysis to explore the association between exposure to pesticides and the risk of SAB,” the authors say. This novel approach includes analyzing 18 studies, totaling 439,097 pregnant participants, that allows the researchers to highlight an important public health issue and raise concerns for maternal contact with the harmful chemicals in pesticide products. SAB, also known as spontaneous miscarriage, is defined as the loss of pregnancy occurring prior to 20 weeks of gestation. “It has been observed that approximately 10–15% of pregnancies end up terminating spontaneously,” the researchers report. According to the authors, these negative birth outcomes can be attributed to many factors such as advanced maternal age, anatomical, immunological, and endocrinological disorders, infections, tobacco use, alcohol intake, abnormalities of the placenta, and exposure to heavy metals, radiation, and pesticides. To connect SAB specifically to pesticide exposure in mothers, a literature search was conducted for peer-reviewed studies that include pregnant study participants, ages 16 and above, who report “exposure to one or more pesticides […]

(Beyond Pesticides, September 4, 2024) A study in the Journal of Environmental Science and Public Health adds to the body of science that highlights the ecological decline threatening all species as a result of hazardous chemicals in the environment. “When environmental changes undermine a species’ or population’s ability to survive, it is said to be in an ecological crisis,” the authors state. They continue, “Pesticides, particularly persistent organic pollutants (POPs), are among the top ten chemicals and hazardous compounds that the WHO [World Health Organization] has recognized as being a concern for global health. The overuse and improper handling of agrochemicals is the primary driver of the ecological disaster.”   The researchers, from the Post Graduate Institute of Medical Education and Research in India, conducted a literature review to look broadly and comprehensively at the range of factors that contribute to adverse health effects (from breast cancer to genotoxic effects, chronic kidney disease, neurotoxicity, and more). They searched PubMed and Google Scholar for studies between 2004-2024 for relevant information on soil health, sustainable agriculture, food security, soil security, and the associations with human health. Their scientific findings lead the authors to conclude that the building of healthy soils will eliminate the need […]

(Beyond Pesticides, August 14, 2024) Pesticide exposure is linked to negative birth outcomes in a recent study in the American Journal of Epidemiology. This study adds to that body of science, but is novel research since, “Epidemiological studies of pesticide exposures and stillbirth in the United States have not been published in the past two decades, a time period that has seen dramatic changes in pesticide use compared to the 20th century,” the authors state. The study analyzes Arizona pesticide use records and birth certificates from 2006-2020. Researchers correlate mothers living within 500 meters of any pyrethroid, organophosphate (OP), or carbamate insecticide applications during specific windows before and during pregnancy with stillbirth. The authors focus on exposure during the prenatal period, as it is a susceptible time frame in which any contact with pesticides can negatively impact health. Numerous studies report several adverse birth and childhood outcomes with prenatal exposure. To link pesticide exposure and negative birth outcomes, Arizona records that encompass 1,237,750 births, 2,290 stillbirths, and 27 pesticides were analyzed. The authors “evaluate associations of pyrethroids, OPs, and carbamate insecticides with stillbirth by using data from the Arizona Pregnant women’s Environment and Reproductive outcomes Study (Az-PEARS), a project that […]

(Beyond Pesticides, August 8, 2024) With the use of its emergency authority—not used in nearly 40 years, the U.S. Environmental Protection Agency (EPA) on August 7 banned a pesticide (the weed killer Dacthal or DCPA—dimethyl tetrachloroterephthalate) under the “imminent hazard” clause of the federal pesticide law. At the same time, the agency is exercising its authority to prohibit the continued use of Dacthal’s existing stocks, a provision that EPA rarely uses. EPA identified serious concerns about fetal hormone disruption and resulting “low birth weight and irreversible and life-long impacts to children [impaired brain development, decreased IQ, and impaired motor skills] exposed in-utero” and finds that there are no “practicable mitigation measures” to protect against these hazards. The last time EPA issued an emergency action like this was in 1979 when the agency acknowledged miscarriages associated with the forestry use of the herbicide 2,4,5-T—one-half of the chemical weed killer Agent Orange, sprayed over people to defoliate the landscape of Vietnam in the war there—with the most potent form of dioxin, TCDD (2,3,7,8-Tetrachlorodibenzo-p-dioxin). While EPA has been congratulated for using its emergency authority, which it is obviously reluctant to use, and health and environmental activists say could be used broadly, the timeline […]

(Beyond Pesticides, July 9, 2024) Last month, California cannabis regulators recalled a pesticide-tainted vape, one of the contaminated products identified in a Los Angeles Times investigation. The report reveals that the California Department of Cannabis Control (DCC) has for months been aware of the presence of dangerous chemicals in legal cannabis sold to the public. Conducted by Los Angeles Times and WeedWeek, a cannabis industry newsletter, the investigation has uncovered alarming levels of the insecticide chlorfenapyr in legal cannabis products sold in state dispensaries. According to an article via the National Institutes of Health, “Although [chlorfenapyr] has been identified as a moderately toxic pesticide by the World Health Organization (WHO), the mortality rate of poisoned patients is extremely high. There is no specific antidote for chlorfenapyr poisoning.” The chemical is associated with adverse liver effects and is toxic to bees, birds, and aquatic organisms. Despite claims that the state’s cannabis is safe and regulated, many popular brands of vapes and pre-rolled joints were found to contain dangerous pesticides at levels exceeding state limits and federal standards for tobacco. This investigation comes on the heels of the discovery of large amounts of illegal Chinese pesticides at cannabis grow operations around the state. […]

(Beyond Pesticides, June 27, 2024) Earlier this month, Public Employees for Environmental Responsibility (PEER) filed a lawsuit against the U.S. Environmental Protection Agency (EPA) on behalf of a group of ranchers and farmers in Texas harmed by biosolids contaminated with per- and polyfluoroalkyl substances (PFAS). The plaintiffs charge that their health and livelihoods were severely damaged due to contaminated biosolids leaching from neighboring properties onto their land. Despite EPA’s responsibility under the Clean Water Act (Section 405(d) and 40 CFR Part 503) to identify toxic pollutants in biosolids and regulate them to protect human health and the environment, the agency has not effectively addressed the dangers posed by PFAS in biosolid fertilizers. EPA’s failure has dramatic impacts on farmers as well as the public, who are eating or drinking PFAS-contaminated crops, dairy milk, beef, or other meat products. The shortcomings of federal regulations underscore the urgent need for a shift in how federal and state agencies approach these issues, prioritizing precaution to prevent future harm. The persistence of these legacy or “forever” chemicals in the environment illustrates the severe consequences of a historically lax regulatory framework in the U.S.  The National Association of State Departments of Agriculture (NASDA) has identified […]

(Beyond Pesticides, June 4, 2024) A study published in the most recent edition of the journal Ecotoxicology and Environmental Safety documents for the first time the presence of the herbicide glyphosate in human sperm. The study looked at 128 French men with an average age of 36 years who tested positive for glyphosate in their blood. Seventy-three out of the 128 men were found to also have glyphosate in their seminal plasma. Not only that, the amount of glyphosate in seminal plasma was nearly four times higher than what was detected in the blood.   Methods  The study involved a population of 128 infertile French men from whom seminal and blood plasma samples were collected. The study was conducted at the “Pole Santé Léonard de Vinci” medical center, located centrally near Tours, France. This region is recognized for its urban characteristics as well as being a major agricultural hub, particularly for grain and wine production. The study authors note, “This area reflects the common herbicide exposure in France” and the district ranks third highest in terms of pesticide purchases. While additional qualitative data was collected, only 47 of 128 participants fully completed a questionnaire about their profession, diet (organic or […]

(Beyond Pesticides, April 17, 2024) With headlines drawing public attention to the contamination of drinking water after years of federal government neglect, the U.S. Environmental Protection Agency (EPA) announced on April 10 new standards to reduce public exposure to PFAS, or per- and polyfluoroalkyl substances, commonly referred to as “forever chemicals” because of their persistence. EPA has finalized a National Primary Drinking Water Regulation (NPDWR) for six PFAS, including PFOA and PFOS, which EPA has recognized have no safe level of exposure, regulating new chemicals for the first time since the 1996 amendments to the Safe Drinking Water Act (SDWA). PFAS persistence and bioaccumulation in humans, wildlife, and the environment is due to the strength of a resulting fluorine–carbon atom bond. PFAS contamination of drinking water, surface and groundwater, waterways, soils, and the food supply—among other resources—is ubiquitous worldwide. PFAS is used in everyday products, including cookware, clothes, carpets, as an anti-sticking and anti-stain agent, in plastics, machinery, and as a pesticide. The action was welcomed by environmentalists and public health advocates as an important step but left many concerned that any level of exposure to these chemicals is unacceptable and critical of EPA’s ongoing failure to act despite years […]

(Beyond Pesticides, April 15, 2024) At first, some thought this was an April Fools’ announcement by pranksters like the YES men. Put out an announcement pretending to be the U.S. Environmental Protection (EPA) with a warning to farmworkers that they are being exposed to a highly hazardous weed killer, dacthal (dimethyl tetrachloroterephthalate or DCPA), offering no protection. The announcement says, “EPA is warning people of the significant health risks to pregnant individuals and their developing babies exposed to DCPA” and notes that the agency will be “pursuing” further action at some unspecified time in the future. But, this was no joke, especially for farmworkers. The agency somehow believed it was fulfilling its statutory duty to protect farmworkers and their families with a warning that a chemical they may be exposed in their workplace and possibly their homes and schools is harming them and, for those pregnant, destroying the health of their fetus. “In light of the workplace reality for farmworkers, the lack of labor protections, and the documented deficiencies in the existing worker protection standards, it is difficult to conceive of how EPA officials think this warning is protective in any way. And in light of what agency officials know, or […]

(Beyond Pesticides, April 11, 2024) Scientists are moving forward in testing an agroecological method of “push-pull” pest management (reducing the attractiveness of the target organism and luring pest insects towards a trap) to fight the Asian citrus psyllid (ACP) in Florida orange groves, as it spreads a plant disease known as the pathogenic bacteria huanglongbing (HLB), also known as citrus greening, which is deadly to citrus trees. The disease is spread by the pathogenic bacteria Candidatus Liberibacter asiaticus (CLas).  The chemical-intensive, or conventional, citrus industry is under intense pressure to find alternatives, as synthetic antibiotic use for this purpose has been successfully challenged in court. ACP is the carrier, or vector, for HLB, spreading it through the citrus groves and killing the trees. The chemical-intensive industry has focused on using antibiotics, which the environmental and public health community has rejected because of serious medical concerns associated with life-threatening bacterial resistance to antibiotics used to protect humans. A federal district court decision in December 2023 found illegal the U.S. Environmental Protection Agency’s (EPA) decision to register the antibiotic streptomycin in Florida citrus without adequate review of its impact on endangered species. The streptomycin lawsuit, filed in 2021 by a coalition of […]

(Beyond Pesticides, April 5, 2024) Exposure to chemical toxicants, molds, and algae contributes to autism and attention disorders in children, according to research that bolsters earlier findings. The exposures may be most relevant, not in the children, but one generation back—in the parents. The study, “Assessing Chemical Intolerance in Parents Predicts the Risk of Autism and ADHD in Their Children,” was published in the March issue of the Journal of Xenobiotics. Led by Claudia S. Miller, MD, an immunologist at the University of Texas at San Antonio noted for her work on chemical intolerance (CI), the authors build on previous work published in 2015 establishing parental CI as a risk factor for autism and ADHD. Dr. Miller participated in Beyond Pesticides’ 2022 Forum Series. Recordings of her presentation are available on YouTube here and here. In 1996, Dr. Miller concluded that CI is induced by Toxicant-Induced Loss of Tolerance (TILT). For further details, see Beyond Pesticides’ Daily News Blog. Three years later Dr. Miller developed the Quick Environmental Exposure and Sensitivity Inventory (QEESI), a questionnaire for individuals tracing their toxicant exposures and symptom histories. QEESI was first developed with groups exposed to organophosphate pesticides, volatile organic compounds in reconstruction and […]

(Beyond Pesticides, March 21, 2024) Alarming levels of a hazardous pesticide plant growth regulator linked to reproductive and developmental effects, chlormequat, is found in 90% of urine samples in people tested, raising concerns about exposure to a chemical that has never been registered for food use in the U.S. but whose residues are permitted on imported food. Published in the Journal of Exposure Science and Environmental Epidemiology in February 2024 and led by Environmental Working Group toxicologist Alexis Temkin, PhD, a pilot study finds widespread chlormequat exposure to a sampling of people from across the country. U.S. Environmental Protection Agency (EPA) regulations only permit the use of chlormequat on ornamental plants and not food crops grown in the U.S. As explained in the journal article, “In April 2018, the U.S. EPA published acceptable food tolerance levels for chlormequat chloride in imported oat, wheat, barley, and some animal products, which permitted the import of chlormequat into the U.S. food supply.” In 2020, EPA increased the allowable level of chlormequat in food. Then in April 2023, EPA proposed allowing the first-ever U.S. use of chlormequat on barley, oat, triticale (a hybrid of wheat and rye), and wheat. Existing regulatory standards explain the […]