(Beyond Pesticides, February  6, 2024) 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 pieces of literature cover the risk of ovarian cancer from pesticide exposure. Additionally, this study notes suggests the role of hormones in ovarian cancer prognosis and development, highlighting an association with endocrine disruption. Exposure to past and current-use endocrine-disrupting chemicals (EDCs), like pesticides, has a long history of severe adverse human health effects. Endocrine disruptors are xenobiotics (i.e., chemical substances like toxic pesticides foreign to an organism or ecosystem) present in nearly all organisms and ecosystems. The World Health Organization (WHO), European Union (EU), and endocrine disruptor expert (deceased) Theo Colborn, Ph.D., classify over 55 to 177 chemical compounds as endocrine disruptors, including various household products like detergents, disinfectants, plastics, and pesticides. Endocrine disruption can lead to several health problems, including hormone-related cancer development (e.g., thyroid, breast, ovarian, prostate, testicular), reproductive dysfunction, and diabetes/obesity that can span generations. Therefore, studies related to pesticides and endocrine disruption help scientists understand the underlying mechanisms that indirectly or directly cause cancer, among other health issues. The study evaluates a […]

(Beyond Pesticides, February 5, 2024) Public Comment Period Ends February 26, 2024. The U.S. Environmental Protection Agency (EPA) never completed protocol for testing pesticides that disrupt the fundamental functioning of organisms, including humans, causing a range of chronic adverse health effects that defy the common misconception that dose makes the poison (“a little bit won’t hurt you”)—when, in fact, minuscule doses (exposure) wreak havoc with biological systems. After a nearly two decade defiance of a federal mandate to institute pesticide registration requirements for endocrine disruptors, EPA has now opened a public comment period ending February 26, 2024 and advocates are criticizing the agency’s proposed evaluation as too narrow. A detailed examination of EPA’s proposal can be found in draft comments by Beyond Pesticides.  Endocrine disruption as a phenomenon affecting humans and other species has been critically reviewed by many authors. Endocrine disruptors are chemicals that can, even at extremely low exposure levels, disrupt normal hormonal (endocrine) function. Such endocrine disrupting compounds (EDC) include many pesticides, exposures to which have been linked to infertility and other reproductive disorders, diabetes, cardiovascular disease, obesity, and early puberty, as well as attention deficit hyperactivity disorder (ADHD), Parkinson’s, Alzheimer’s, and childhood and adult cancers. EPA […]

(Beyond Pesticides, January 24, 2024) A study published in Environmental Sciences Europe finds that 2,4-D, pyrethroid (PRY), and organophosphate (OP) pesticides increase the risk of cancer through oxidative stress (OS). The study highlights that pesticides that increase cancer risk also raise inflammation biomarkers that indicate damage to organs (e.g., liver) via oxidative stress. Additionally, different cancers show different sensitivities to pesticides; thus, cancer risk changes with exposure concentration and pattern. Despite a plethora of studies linking cancer and pesticide exposure, very few cover the mechanisms involved in cancer development, including OS. Only five to ten percent of cancers are hereditary. However, environmental or lifestyle factors, like chemical exposure, can make an individual more susceptible to cancer development through gene mutation. In fact, a vast amalgamation of research links cancer risk to pesticide exposure, which augments the risk of developing both common and rare cancers. Therefore, studies like this highlight the importance of understanding how pesticide use can increase the risk of latent diseases, which do not readily develop upon initial exposure. Using data from the National Health and Nutrition Examination Survey (NHANES), researchers investigated the link between the risk of several cancers and pesticide exposure. The researchers also thoroughly evaluated […]

(Beyond Pesticides, January 18, 2024) Research continues to raise alarms about the hazards associated with the use of plastic, including the microplastic particles that are distributed in alarming amounts throughout the environment and taken up by organisms, including humans. A study published by researchers at Columbia and Rutgers universities (see article in the Proceedings of the National Academy of Sciences, January 2024) reports that the average liter of three brands of bottled water in the U.S. contains almost a quarter of a million tiny plastic pieces, of which 90 percent are at the nanoscale. The other ten percent are slightly larger, at microscale. Last December, researchers at Norway’s MicroLEACH project published a study that analyzes the components of 50 items in common use—plastic bags, disposable cups, dishwashing gloves, car tire granules, children’s toys and balloons. (See summary.) The researchers found, like in previous studies, that many hazardous chemicals in the plastics as well as many that could not be identified because they were not listed in the major chemical substance databases. Only 30 percent of the chemical compounds identified in the study were present in two or more products. This suggests that most plastics contain many unidentified chemicals, far beyond […]

(Beyond Pesticides, January 10, 2024) Exposure to endocrine-disrupting chemicals (EDCs) negatively impacts testicular function and may cause sperm count declines over time, according to a 2022 review published in Endocrine. The findings indicate that this occurs regardless of whether exposure is prenatal (before birth) or postnatal (after birth). More recent work from October 2023 confirms the connection between male reproductive health and exposure to organophosphate and carbamate insecticides and the weed killer glyphosate—as many pesticide products containing these chemicals are classifiable as endocrine disruptors (ED). Just last year, a meta-analysis from researchers at Mount Sinai Medical Center, the Hebrew University of Jerusalem, and the University of Copenhagen, among others, finds that the drop in global sperm count is accelerating, dropping by 51.6 percent from 1973 through 2018. The U.S. regulatory system, under the authority of the U.S. Environmental Protection Agency (EPA), has not kept pace with the science and does not fully evaluate pesticides in wide use for endocrine disruption, despite a requirement in 1996 law (the Food Quality Protection Act) to begin that testing and evaluation nearly three decades ago. In 2021, Beyond Pesticides reported that the Office of the Inspector General (OIG) for EPA issued a damning report on the […]

(Beyond Pesticides, December 13, 2023) A study published in Environmental Health finds occupational (work-related) exposure to pesticides increases the risk of endometrial (uterine) cancer development. Endometrial cancer is the most common cancer of the female reproductive system and the fourth most common cancer among women, primarily affecting the uterine lining rather than the uterus itself, like uterine sarcoma. Despite data predicting the disease rate to increase, few studies evaluate the connection environmental contaminants have on endometrial cancer occurrence. Like most cancers, non-genetic factors account for a majority of endometrial cancer risk, including diabetes, age, contraceptive (birth-control) use, and hormone (endocrine) disruption. However, three percent of all cases are hereditary, primarily from Lynch syndrome. The study notes, “Identifying other modifiable risk factors may help develop strategies to reduce the expected increasing incidence of these neoplasms.” Many pesticides have a long history associated with endocrine-disrupting properties that induce various molecular changes, prompting disease development. The International Agency for Research on Cancer (IARC) classifies many of these chemicals as potent carcinogens in animal studies. Cancer development also depends on genetic susceptibility, as impaired genes responsible for xenobiotic detoxification (elimination) increase disease risk sensitivity. Adding to the science, a review published in Environmental Exposure, Biomonitoring, and Exposure […]

(Beyond Pesticides, November 16, 2023) A study published in the Journal of Endocrinological Investigation finds exposure to the insecticide chlorpyrifos and other organophosphates (OPs) has a positive association with the development of erectile dysfunction (ED). Erectile dysfunction, also known as impotence, is the difficulty of getting or keeping an erection. Despite occurring in males later in life (between 40 and 70 years), recent studies highlight this issue emerging among adolescents, highlighting possible hormone imbalances not associated with age. Scientists and health officials already associate pesticide exposure with a decrease in male fertility, including reduced sperm count, quality, and abnormal sperm development. Exposure to many pesticides also profoundly impacts the endocrine (hormone) system, including reproductive health. Globally, ED is increasing, with over 300 million men expected to have ED by 2025. Although age and comorbid conditions (e.g., obesity, diabetes, and hypertension) play a role in ED prognosis, studies, including this one, suggest environmental contaminant exposure can also explain the increasing trend in ED. The study notes, “Future studies are warranted to corroborate these findings, determine clinical significance, and to investigate biological mechanisms underlying these associations.” Using data from the National Health and Nutrition Examination Survey (NHANES), researchers investigated urinary levels of 3,5,6-trichloro-2-pyridinol (TCPy), […]

(Beyond Pesticides, November 1, 2023) A study published in Environmental Health Perspective finds the risk of acute childhood leukemia (AL), specifically acute lymphoblastic leukemia (ALL), slightly increases with exposure to pesticides (i.e., insecticides and herbicides) from uses on vines, a crop subject to intensive pesticide use. Within 1 kilometer [km] of vineyards, the risk of ALL among children increases in areas with a higher density of vines. Although medical advancements in disease survival are more common nowadays, childhood AL remains the secondary cause of child mortality following physical injury. Furthermore, childhood leukemia survivors can suffer from chronic or long-term health complications that may be life-threatening. The etiology or cause of childhood AL involves the interaction of multiple components, including lifestyle and genetics; emerging evidence indicates that environmental contaminants (e.g., pesticides, air pollution, solvents, diet, etc.) play a role in disease. Pesticide contamination is widespread in all ecosystems, and chemical compounds can accumulate in human tissues, resulting in chronic health effects. Children are particularly vulnerable to the impacts of pesticide exposure as their developing bodies cannot adequately combat exposure effects. Already, studies find low levels of pesticide exposure during pregnancy or childhood cause adverse health effects, from metabolic disorders to mental and physical disabilities. Moreover, […]

(Beyond Pesticides, October 12, 2023) A new study published in Environment International finds novel environmental chemicals (i.e., piperidine insecticide, 2,4-dinitrophenol, benzo[a]carbazole, and a benzoate derivative) involved in developing breast cancer through various inflammation pathways. These new potential factors contribute to breast cancer and highlight the importance of employing epidemiological biomonitoring like exposome (total exposure from birth to death) to discover mechanisms involved in disease development that are otherwise overlooked. According to the Centers for Disease Control and Prevention (CDC), breast cancer is a disease that causes breast cells to grow out of control, with the type of breast cancer depending on the cells themselves. Several studies and reports, including U.S. Environmental Protection Agency (EPA) data, identify hundreds of chemicals as influential factors (either promoting or initiating) associated with breast cancer risk. Breast cancer is the most common cancer among women, accounting for 12 percent of all new annual cancer cases worldwide and causing the second most cancer-related deaths in the United States. Past studies suggest genetic inheritance factors influence breast cancer occurrence. However, genetic factors only play a minor role in the incidence of breast cancer, while exposure to external environmental factors (e.g., chemical exposure) appears to play a more notable role. One in […]

(Beyond Pesticides, October 2, 2023) On the 50th anniversary of the Endangered Species Act (ESA), statements out of the U.S. Environmental Protection Agency (EPA) raise concerns about the agency’s ability to meet the challenge of evaluating pesticides for their adverse impact on threatened and endangered species. While EPA has initiated efforts to address a significant backlog of pesticide evaluations, the agency faces a task so extensive that it may require several additional decades to fully catch up. EPA officials stated, “Even if EPA completed this work for all of the pesticides that are currently subject to court decisions and/or ongoing litigation, that work would take until the 2040s, and even then, would represent only 5 percent of EPA’s ESA obligations.”   As part of a “whole of government” approach, EPA must redirect its pesticide program to protecting all species and their habitats.   The speed and depth of biodiversity loss has reached crisis proportions. A 1,500-page report in 2019 by Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES )—Global Assessment Summary for Policymakers, the most comprehensive look to date at the biodiversity crisis and its implications for human civilization, makes the following finding: “Since 1970, trends in agricultural production, fish harvest, […]

(Beyond Pesticides, September 27, 2023) A study published in Pesticide Biochemistry and Physiology finds organophosphate (OP), organochlorine (OC), and pyrethroid (PYR) pesticides have links to insulin resistance (IR) associated with metabolic disorders like diabetes, obesity, chronic kidney disease (CKD), and hypertension. Metabolic disorders are among the leading causes of morbidity and mortality, with over 11 percent (>37 million) of individuals in the U.S. having diabetes, and cases are growing by millions annually. Additionally, there is a rise in metabolic disorders among young people. Studies even find low levels of pesticide exposure during pregnancy or childhood cause adverse health effects, including metabolic disorders tied to gut microbiome disruption (dysbiosis). With increasing rates of diabetes and obesity, the two most prominent metabolic diseases in the study, cases among the global population, studies like these highlight the importance of evaluating how chemical contaminants deregulate normal bodily function through metabolic changes.  To investigate the association between pesticide exposure and insulin-related metabolic disorders in humans, researchers searched the PubMed database for articles, performing a systematic review. The study notes, “IR is defined as a pathological state in which a higher-than-normal level of insulin is required to produce the optimal response in cells.” The search generated 4,051 articles related to the topic. However, after excluding duplicates and […]

(Beyond Pesticides, July 13, 2023) A study published in Environmental Science and Pollution Research finds exposure to p-Dichlorobenzene (p-DCB), a chlorophenol compound with uses as an insecticide, disinfectant, repellent, fumigant, fungicide, and deodorizer, can increase the risk of common endocrine (hormone)-mediated reproductive cancers (i.e., breast, uterine, and ovarian) in women. P-DCB or paradichlorobenzene has carcinogenic (cancer-causing) properties and the chemical has been banned in the European Union (EU) since 2005 for air fresheners and 2008 for mothballs. Being a chlorinated aromatic hydrocarbon (with benzene) compound (chlorobenzene), in addition to its cancer-causing properties, p-DCB can cause acute illnesses like headaches, numbness, sleepiness, nausea and vomiting and chronic effects like nervous system disorders leading to depression, and impact on the brain, birth outcomes, reproductive system, liver, and kidneys. Pesticides have a long history associated with endocrine-disrupting properties that induce various molecular changes, prompting disease development. Adding to the science, a similar review published in Environmental Exposure, Biomonitoring, and Exposure Assessment highlights how specific estrogen-mimicking pesticides increase the risk of disease, particularly hormone-related cancers among women (e.g., breast, ovarian, and endometrial cancer) and men (i.e., testicular, prostate cancer).PDCB, also known as para-dichlorobenzene, contains the carcinogen benzene and is chlorine-based (a chlorinated aromatic hydrocarbon compound), which in December 2019 […]

(Beyond Pesticides, June 2, 2023) Scientists have identified 97 different types of pesticides and flame retardants in primate fecal samples, recently reporting their results in the journal Biology Letters. In Uganda’s Kibale National Park, researchers studied the chemical exposure of four species of primates (chimpanzees, Ugandan red colobus, olive baboons and red-tailed monkeys), adding to previous research on the subject. The chemicals demonstrate a measurable effect on primate growth and development, sparking considerable unease as to the future health of these critical species. This study shows how even within a protected national park, wildlife species are at risk from chemical pollution. According to advocates, the use of dangerous pesticides and flame retardants, therefore, must be entirely stopped in order to protect the future viability of wildlife species.  Scientists collected a total of 71 fecal samples from the four chosen species to measure levels of chemicals and hormones in a noninvasive manner. After sample analysis, researchers highlight three main groups of chemical pollutants: organochlorine pesticides (OCPs), brominated flame retardants (BFRs), and organophosphate esters (OPEs). Although in a protected area, wildlife species encounter humans through tourism, research, and human development surrounding the park. As these pesticides are so prevalent in areas of […]

(Beyond Pesticides, May 30, 2023) On Endangered Species Day, May 19, the U.S. Environmental Protection Agency (EPA) revealed an unfortunate degree of hypocrisy in its claims to protect endangered species from pesticides. Tell EPA and Congress that dwindling biodiversity is an existential crisis that requires removing serious threats posed by pesticides. EPA announced that it “is publishing a group of StoryMaps to raise public awareness about protecting endangered species from pesticides.” It continues, “Through its Vulnerable Species Pilot, EPA has been identifying endangered species that are vulnerable to pesticides, developing mitigations to protect them from pesticide exposure, and will apply the mitigations to many types of pesticides.” However, pesticide use is a major cause of declining biodiversity, which is manifested in extinctions, endangered species, and species vulnerable to environmental disturbances—including climate change, habitat fragmentation, and toxic chemicals. If EPA is serious about protecting biodiversity, it must look first at the ways it has created the crisis in the first place. Studies upon studies upon studies show that pesticides are a major contributor to the loss of insect biomass and diversity known as the “insect apocalypse,” particularly in combination with climate change. Insects are important as pollinators and as part of […]

(Beyond Pesticides, May 25, 2023) A review of scientific literature published in the Journal of Endocrinological Investigation demonstrates exposure to past and current-use endocrine-disrupting chemicals (EDCs), like pesticides, have a long history of severe adverse human health effects. Endocrine disruptors are xenobiotics (i.e., chemical substances like toxic pesticides foreign to an organism or ecosystem) present in nearly all organisms and ecosystems. The World Health Organization (WHO), European Union (EU), and endocrine disruptor expert (deceased) Theo Colborn, Ph.D., classify over 55 to 177 chemical compounds as endocrine disruptors, including various household products like detergents, disinfectants, plastics, and pesticides. Endocrine disruption can lead to several health problems, including hormone-related cancer development (e.g., thyroid, breast, ovarian, prostate, testicular), reproductive dysfunction, and diabetes/obesity that can span generations. Therefore, studies related to pesticides and endocrine disruption help scientists understand the underlying mechanisms that indirectly or directly cause infertility, among other health issues. The review notes, “New evidence supports the role of other EDCs as possibly carcinogenic and pregnant women should avoid risk area and exposure. The relationship between EDCs and cancer supports the need for effective prevention policies increasing public awareness.” The review examines the relationship between EDCs and various hormone-mediated various (i.e., breast, prostate, testicle, ovary, and thyroid) to determine the carcinogenicity of the chemicals and their impact on public […]

(Beyond Pesticides, May 2, 2023) On April 20, the European Commission’s new rules on endocrine disrupting chemicals took effect. Called “Classification, Labelling & Packaging” (CLP), the rules create four new hazard categories for endocrine disruptors. The categories range from “suspected of causing” or “may cause” endocrine disruption in the environment to “suspected of causing” or “may cause” endocrine disruption in humans. After a transition period, users will have to indicate on labels and packaging if a substance falls into any of the hazard classes. All actors in the supply chain are obligated to provide the information to every downstream participant. The  new CLP rules, implementing a 2022 measure adopted by the European Commission and then the European Parliament, also specify a minimum font size for the hazard information and for the first time include standards for labeling in online commerce and in places where customers use refillable containers to transport, store, and use the chemicals. According to the EU Directorate-General for the Environment: “The new hazard classes are the result of extensive scientific discussions and will provide easier access to information to all users of such chemicals, notably consumers, workers and businesses. They allow further action to address and mitigate […]

(Beyond Pesticides, April 4, 2023) The pesticide industry focused the entirety of their “legislative day” late last month on an effort to roll back local democratic decision making and implement federal pesticide preemption of local governance in the Farm Bill. “Something that most people don’t know,” J.D. Darr, the director of legislative and regulatory affairs for the National Pest Management Association told Pest Control Technology (PCT), “is that the Ag Committee does have oversight of a small sliver of FIFRA. So, the Farm Bill is a really good vehicle for us making regulatory decisions surrounding pesticide.” Contrary to Mr. Darr’s statement, pesticide reform advocates are well aware of the threat the pesticide industry poses in the 2023 Farm Bill, having defeated a similar effort in 2018, and repeated attempts to implement pesticide preemption in the preemption-free states of Maine and Maryland. Reform advocates are pushing Congress to include in the Farm Bill diametrically opposing language already contained with Senator Cory Booker’s (D-NJ) Protect America’s Children from Toxic Pesticides Act. The pesticide industry’s lobby day attempted to soften the industry’ image in Congress by including a range of non-pesticide related issues, such as a “friendly political discussion” between conservative columnist Jonah […]

(Beyond Pesticides, February 27, 2023) California’s Department of Pesticide Regulation (DPR) is asking for comments on its “Sustainable Pest Management (SPM) Roadmap” by 5 pm (PST) March 13, 2023. While recognizing problems inherent in traditional integrated pest management (IPM), DPR’s roadmap is directing us to a destination that includes another generation of exposure to the worst of the worst pesticides—while failing to embrace the elimination of farm inputs harmful to ecosystems and the capacity of soil biology to cycle nutrients and draw down the maximum amount of atmospheric carbon. The Roadmap’s off-handed rejection of organic practices, rather than building on organic systems, creates a lost opportunity for adopting a holistic and serious solution to the current crises of health threats from pesticides, biodiversity collapse, and the climate emergency. Tell DPR to revise its destination to immediately eliminate the worst pesticides and implement wide scale transition to organic practices. DPR’s Roadmap states these goals: By 2050, eliminate the use of Priority Pesticides by transitioning to SPM. By 2050, SPM will be adopted as the de facto pest management system in California. DPR says “The criteria for classifying pesticides as “Priority Pesticides” include, but are not limited to, hazard and risk classifications, […]

(Beyond Pesticides, January 26, 2023) A study published in Food Safety and Toxicology finds that the widely used fungicide azoxystrobin (AZO), used in food production and turf management, can disrupt the function of the intestinal (colonic) barrier responsible for the absorption of nutrients and defense against harmful substances. This and other similar data are important because the U.S. Environmental Protection Agency (EPA), with its required pesticide testing protocol, says that the chemical has “low acute and chronic toxicity to humans, birds, mammals, and bees,” and speaks to the need for the agency to modernize its registration requirements. [The agency does note that AZO is “is highly toxic to freshwater fish, freshwater invertebrates, and estuarine/marine fish, and very highly toxic to estuarine/marine invertebrates.] AZO is a broad-spectrum chemical used in wheat, barley, oats, rye, soya, cotton, rice, strawberry, peas, beans, onions, and a long list of other vegetables, as well as on lawns and golf courses, on a range of fungal diseases. The intestinal (colonic) barrier prevents the internal environment from damage caused by exogenous toxins to ensure internal homeostasis, impeding incidences of systemic inflammatory response syndrome (SIRS), sepsis, and multiple organ dysfunction syndrome (MODS). The intestines host a group of microorganisms that form […]

(Beyond Pesticides, January 9, 2023) The Biden EPA still needs a new vision in order to meet the existential crises in public health, climate change, and biodiversity. The Trump Environmental Protection Agency (EPA) reversed in four years much of the progress made by the EPA in decades. Despite a broad new perspective embodied in President Biden’s Executive Memorandum (EM) Modernizing Regulatory Review issued on his first day in office, the Biden EPA has not adopted a new direction for regulating pesticides. Tell President Biden, EPA, and Congress to adopt a new direction for pesticide regulation. Immediately following his inauguration, President Joe Biden issued the EM, which directs the heads of all executive departments and agencies to produce recommendations for improving and modernizing regulatory review, with a goal of promoting public health and safety, economic growth, social welfare, racial justice, environmental stewardship, human dignity, equity, and the interests of future generations. This EM could reverse the historical trend of status-quo regulatory reviews required by the White House Office of Management and Budget (OMB) that typically support vested economic interests of polluters (e.g., petroleum-based pesticide and fertilizer manufacturers). The President’s EM sets the stage for the adoption of agency policy across government to […]

(Beyond Pesticides, January 6, 2023) Plaintiffs in a recent pesticide lawsuit against the U.S. Environmental Protection Agency (EPA) reprise, in their arguments, a critique proffered repeatedly by Beyond Pesticides: the agency has failed, for many years, to evaluate and regulate endocrine-disrupting pesticides adequately. The suit, according to Progressive Farmer, argues that the 1996 Food Quality Protection Act (FQPA) — legislation that mandated that EPA establish “tolerances” for pesticides in foods and regulate on those bases — required EPA to develop an endocrine disruptor screening program (EDSP) and to implement it by 1999. The litigation goes on to note that “more than twenty-five years after the passage of the FQPA, EPA has yet to implement the EDSP it created and further, has failed to even initiate endocrine testing for approximately 96% of registered pesticides.” Plaintiffs are asking the court, among other requests (see below) to order “EPA to complete all actions required under the FQPA at issue in this case as soon as reasonably practicable, according to a Court-ordered timeline.” Endocrine disruptors are chemicals that can, even at low exposure levels, disrupt normal hormonal (endocrine) function. Endocrine disruptors function by: (1) mimicking the action of a naturally produced hormone, such as estrogen […]

(Beyond Pesticides, December 13, 2022) Pesticides have a long history associated with hormone (endocrine)-disrupting properties that induce various molecular changes, prompting disease development. Adding to the science, a review published in Environmental Exposure, Biomonitoring and Exposure Assessment highlights how specific estrogen-mimicking pesticides increase the risk of disease, particularly hormone-related cancers among women (i.e., breast, ovarian, endometrial cancer) and men (i.e., testicular, prostate cancer). Like pesticides, endocrine disruptors are xenobiotic (i.e., chemical substances foreign to an organism or ecosystem). Many reports demonstrate that exposure to endocrine-disrupting chemicals can adversely affect human, animal—and thus environmental—health by altering the natural bodily hormones responsible for conventional reproductive, physical, and mental development. Endocrine disruption can lead to several health problems, including hormone-related cancer development (i.e., thyroid, breast, ovarian, prostate, testicular), reproductive dysfunction, and diabetes/obesity that can span generations. Therefore, studies related to pesticides and endocrine disruption help scientists understand the underlying mechanisms that indirectly or directly cause cancer, among other health issues. Pesticides are one of the most potent xeno-estrogenic compounds, as estrogenic strength and environmental half-life exceed those of other xeno-estrogenic compounds. Focusing on organochlorine pesticides (OCs), the study evaluates the chemical effects on the physiological (anatomic) system to increase cancer risk. Using human studies, researchers assessed how estrogen-medicated cancer develops in women and men. […]

(Beyond Pesticides, November 29, 2022) Based on new international research adding weight to previous research on falling sperm counts, it is critical that environmental agencies address this and other problems related to endocrine disruption. The study by Levine et al. finds that the drop in sperm count—a drop of 51.6% from 1973 through 2018—is global and that the rate of decline is accelerating. Tell EPA and Congress that pesticide use cannot continue without findings of no endocrine disruption.  The documented (average) drop in sperm counts is approaching the level at which the ability to cause a pregnancy begins to plummet dramatically. The reduction in male fertility may have profound psychological and social impacts, including anxiety, low self-esteem, and depression. These psychological problems have health impacts of their own. Equally serious are connections of anxiety and depression with violent behavior and suicide. Compounding the problem is the fact that men are unlikely to seek fertility-related social support. The drop in sperm counts is just one example of endocrine disruption largely due to exposure to toxic chemicals. The endocrine system consists of a set of glands (thyroid, gonads, adrenal and pituitary) and the hormones they produce (thyroxine, estrogen, testosterone, and adrenaline), which […]