(Beyond Pesticides, November 4, 2024) The U.S. Environmental Protection Agency (EPA) last week opened a public comment period on the regulation of endocrine-disrupting pesticides, a proposal that lays out a drawn-out 10-year process that is narrow in evaluating the underlying mechanism that causes endocrine disruption. The proposal, published in the Federal Register as a partial settlement agreement and consent decree, responds to a lawsuit filed by farmworker and health groups challenging the agency’s failure to test and regulate endocrine-disrupting pesticides. Earlier in the year, after over 25 years of delay following the 1996 Congressional mandate to determine whether pesticides disrupt the endocrine system of humans and other organisms, EPA issued a proposal for modifying its approach to the implementation of the Endocrine Disruptor Screening Program (EDSP).  The National Institutes of Environmental Health Sciences explains endocrine disruptors this way: “Endocrine-disrupting chemicals (EDCs) are natural or human-made chemicals that may mimic, block, or interfere with the body’s hormones, which are part of the endocrine system. These chemicals are associated with a wide array of health issues. . . Endocrine glands, distributed throughout the body, produce the hormones that act as signaling molecules after release into the circulatory system. The human body is […]

(Beyond Pesticides, October 29, 2024) STARTS TOMORROW—NATIONAL FORUM: IMPERATIVES FOR A SUSTAINABLE FUTURE. A legal victory in federal court is the latest in a series of attempts to force the U.S. Environmental Protection Agency (EPA) to fulfill the mandate given to it by Congress in 1996 to test all pesticides for their endocrine disrupting effects and regulate them accordingly. The case in the U.S. District Court for the Northern District of California was brought by the Center for Food Safety (CFS) and a collection of agricultural workers’ organizations, farmers’ groups, and pesticide activists. Beyond Pesticides wrote in 2019, EPA’s “Endocrine Disruptor Screening Program (EDSP) began, then virtually stopped, its review and regulation of endocrine disrupting pesticides, despite [its 1996 Congressional mandate] to develop a screening program within two years and then begin regulating.” (See timeline, Figure 2, p11.) After the release of a  a damning 2021 Office of Inspector General (OIG) report (see Beyond Pesticides’ reporting) on the agency’s lack of progress in protecting the population from potentially damaging endocrine disruption impacts of exposures to synthetic chemical pesticides (and other chemicals of concern), CFS wrote: “The 2021 [OIG] report included the shocking revelation that some EPA staff were instructed to function as […]

(Beyond Pesticides, October 28, 2024) STARTS WEDNESDAY—NATIONAL FORUM: IMPERATIVES FOR A SUSTAINABLE FUTURE. As scientific articles and regulatory reviews by the U.S. Environmental Protection Agency (EPA) focus on individual pesticides or families of pesticides and specific health outcomes associated with exposure, legislation introduced by U.S. Senator Cory Booker (D-NJ), S. 5084, Safe School Meals Act (SSMA), proposes a holistic response to the protection of children by banning pesticides in school lunches. While focused on the elimination of certain individual pesticides and other chemicals of known concern, the bill unilaterally allows children to be served food from certified organic farms. The overwhelmingly large body of scientific findings on the adverse effects of pesticides in the food that children eat in schools and generally. For example, last week Beyond Pesticides commented on EPA’s Draft Human Health and/or Ecological Risk Assessments for Several Pesticides, citing scientific findings that, “Neonicotinoids . . .have been found to affect mammalian nicotinic acetylcholine receptors (nAChRs) [which] are of critical importance to human brain function, especially during development and for memory, cognition, and behavior.” (See more here.) This month, Jennifer Sass, PhD, et al., in Frontiers in Toxicology, published a review of  unpublished rodent developmental neurotoxicity (DNT) studies […]

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 15, 2024) In Environmental Epidemiology, researchers from Columbia University and the University of Southern California, along with representatives from the nonprofit Comite Civico del Valle in Brawley, California, report the heightened risk of wheezing for five- to twelve-year-olds in the rural communities of California’s Imperial Valley. Through a school-based survey, the authors find associations between living near pesticide applications and more wheeze symptoms among the children. According to the authors, residents of the Imperial Valley, which is located near the border between the United States (U.S.) and Mexico, “are primarily Latino, 1 in 3 children live in poverty, and there is a 20% unemployment rate. The county faces poor air quality and excess particulate matter levels. Further, one in five children is diagnosed with asthma and the rate of asthma-related pediatric emergency room visits and hospitalizations is two times the CA state average.” This highlights the disproportionate risk for residents in this area regarding environmental exposure to harmful chemicals. Children are already more susceptible to health complications following pesticide exposure, as they take in greater amounts of toxic chemicals relative to their body weight and have still-developing organ systems. Young children in environments with higher levels of […]

(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 3, 2024) The American Academy of Pediatrics published a technical report in September on antimicrobial resistance, which it calls a global public health threat, identifying the health implications of antibiotic use in animal agriculture. The lead authors, both medical doctors from the Department of Pediatrics at Vanderbilt University Medical Center, note the rise in antimicrobial-resistant infections that result in increased morbidity, mortality, and health care costs for not only adults, but infants and children as well. “[A]ll use of antimicrobial agents exerts selective pressure that increases the risk of development of resistance,” the authors state, highlighting the importance of limiting antimicrobial uses. “Antimicrobial resistance is an organism’s ability to survive exposure to an antimicrobial agent that was previously an effective treatment. Resistance traits can be acquired either through new mutations or through transfer of genetic material between organisms,” the authors report. Antimicrobial-resistant pathogens, such as bacteria and viruses, can be transmitted “through the food supply, direct contact with animals, environmental pathways, and contact with infected or colonized humans,” they continue. Use of antimicrobial agents, especially over extended periods of time or with repeated exposure, can cause resistance to not only that agent, but to multiple agents. As […]

(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 26, 2024) DNA damage is significantly higher in Latinx children from rural, farmworker families than children in urban, non-farmworker families, according to a recent study published by French and American authors in the journal Exposure and Health. Not only do farmworker children test positive for organophosphate pesticides more frequently than non-farmworker children, but the study finds that farmworker children also experience an increased frequency of DNA damage associated with the presence of organophosphate exposure. These results highlight the disparities in exposures and outcomes for children from vulnerable immigrant communities. Advocates note that as long as pesticides remain in use, farmworkers and their families will continue to shoulder a disproportionate share of the toxic effects of these chemicals (see here, here, and here); another in a long line of reasons to shift away from toxic synthetic pesticide use to the adoption of proven organic, regenerative agricultural practices. (See here, here, and here). Methodology The study assesses pesticide exposure and DNA damage in 45 Latinx children ages 10 to 12 from rural, farmworker families (30) and urban, non-farmworker families (15). Participants were selected from a larger study, Preventing Agricultural Chemical Exposure (PACE5)—a community-based research project by the North Carolina […]

(Beyond Pesticides, September 25, 2024) In a semiannual report released in August 2024, EPA’s Office of Inspector General (OIG) identifies a number of “unresolved” issues that strike the core of the agency’s failure to carry out its responsibilities to protect health and the environment. One of the issues identified is EPA’s failure to conduct an adequate and independent assessment of the cancer effects of the fumigant, 1,3-Dichloropropene (1,3-D or Telone). OIG’s original report, The EPA Needs to Improve the Transparency of Its Cancer-Assessment Process for Pesticides, was issued in 2022 and concluded that EPA’s Office of Pesticide Programs (OPP) engages in secret meetings with industry, elevates unqualified individuals to decision-making roles, uses an untested scientific approach, fails to conduct a simple literature review, and neglects public transparency. Other pesticide issues that OIG identified in its report include: The EPA Needs to Determine Whether Seresto Pet Collars Pose an Unreasonable Risk to Pet Health The EPA Has Not Verified that Its Laboratories Comply with Hazardous Waste Requirements EPA Needs an Agencywide Strategic Action Plan to Address Harmful Algal Blooms EPA’s Endocrine Disruptor Screening Program Has Made Limited Progress in Assessing Pesticides EPA Needs to Evaluate the Impact of the Revised Agricultural Worker […]

(Beyond Pesticides, September 24, 2024) Recent commentary in Frontiers in Toxicology by two researchers, Maricel Maffini, PhD and Laura Vandenberg, PhD, highlights the pitfalls in the current regulatory systems in the United States (U.S.) for chemicals that threaten human health. Despite many advancements in science over the past few decades, and the wealth of studies that tie chemical exposure to negative health effects, risk assessments, and subsequent risk management, remain “static” and “outdated,” according to the authors. “There is increasing concern amongst public health professionals, environmental health scientists, and medical organizations about exposures to synthetic chemicals,” the researchers say. “These organizations’ concerns are based on the overwhelming evidence showing associations between chemical exposures and adverse health outcomes in human populations.” Such concerns have sparked a debate on current regulatory methods for chemicals that are present in highly used products, such as pesticides, plastic containers, and food.    The authors continue, “There are now thousands of studies showing associations between these chemicals and adverse health effects in humans including neurological disorders and learning disabilities, metabolic outcomes, infertility, thyroid dysfunction, and cancers.” Additional health effects can be seen in the Pesticide-Induced Diseases Database. Of the many harmful chemicals, per- and polyfluoroalkyl substances […]

(Beyond Pesticides, September 20, 2024) As the California State Assembly wrapped up the 2024 legislative session, what was once a proposed ban of the deadly weed killer paraquat (in both agricultural and nonagricultural contexts) was amended and passed as a requirement for California Department of Pesticide Regulation to complete an “expedited review” by January 1, 2029. Paraquat exposure has been linked to Parkinson’s disease. According to reporting by Los Angeles Times, Assemblymember Laura Friedman (D-Burbank) (the original sponsor of the bill) spoke candidly about the prospects for this legislation, “We never thought we’d get a full ban through the Legislature. But we had to push as hard as we could.” Assemblymember Friedman is chair of the bicameral Environmental Caucus and a self-described “steadfast advocate for the environment [and] sustainable communities.” Environmental advocates, public health professionals, and many who have been affected by Parkinson’s disease are calling for the emergency suspension of paraquat, applying the same standard used by the U.S. Environmental Protection Agency (EPA) to ban the herbicide Dacthal/DCPA last month. (See Daily News here.) Context The original legislation responds to significant scientific documentation of the pesticide’s hazards, and an unresponsive regulatory process, as well as previous legislation efforts. In […]

(Beyond Pesticides, September 10, 2024) Results from a natural experiment, published in Science, shows ecosystem disruption of bat populations with cascading impacts on human health. Eyal Frank, PhD, an assistant professor of the Harris School of Public Policy at the University of Chicago, links increased insecticide use in croplands in the absence of bat species to a rise in infant mortality. As Dr. Frank says in an article in Science Daily, “[B]ats do add value to society in their role as natural pesticides, and this study shows that their decline can be harmful to humans.”  Many farmers rely on bats as alternatives to pesticides to protect their crops from insects, but White-Nose Syndrome (WNS) has greatly impacted bat populations since 2006. With the collapse of many bat populations in counties in North America, these farmers turn to toxic chemicals to replace the ecosystem services bats usually provide. These chemicals, however, lead to ripples through the ecosystem and endanger human health.  WNS is an invasive fungus (Pseudogymnoascus destructans) found in caves that affects bats during hibernation. As highlighted in an article in the New York Times, three species of bats in North America have been decimated by this syndrome, and bats […]

(Beyond Pesticides, September 6, 2024) A literature review in the Internal Journal of Molecular Sciences provides promising insights into biofungicides as a “sustainable and economically viable alternative” to synthetic fungicides in expanding organic agriculture. The authors note that organic “… is the most sustainable response to current crises of all kinds, as it can better anticipate and prepare for crises and create long-term equity and resilience in food systems.” The authors point out that fungal infections in crops are estimated to account for 20-40% of failures annually, and understanding how to control such agricultural diseases will be crucial to meeting the needs of a growing global population. Organic farmers and land managers note that biological tools can be integrated into practices that work with the ecosystem, rather than be utilized as “substitute” products or controls with practices that ignore soil health and beneficial organisms that enhance biodiversity and provide ecosystem services (see here and here). Conducted by researchers in Mexico, the review examines data on biosynthesis (how plants create their own fungicide, known as secondary metabolites or SMs); the mechanisms of action of secondary metabolites against phytopathogenic (plant-killing) fungi; extraction techniques and biofungicide formulations; the biological activity of plant extracts on phytopathogenic fungi; and […]

(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, September 3, 2024) A piercing investigative article in the August 14 New York Times by journalist Greg Donahue reveals the abandonment of a group of brain disease patients in an area of Canada with forestry management for paper products, agriculture, and large amounts of pesticide use, including glyphosate. It illustrates the tension in the relationship between government authorities, regulated industries, and neurologist (physician) on the front lines. The article details the manner in which health officials appeared to manipulate their own investigation of a disease cluster to make it less disruptive to the economy of the Canadian province of New Brunswick. (This Beyond Pesticides analysis, where not otherwise indicated, draws on Mr. Donahue’s article.) New Brunswick has one major town, Moncton, and a large rural area characterized by agriculture and forestry. The province’s agriculture industry is dominated by blueberry production, which occupies the fourth largest amount of agricultural land in New Brunswick. About half the province is forested, with increasing amounts of land devoted to tree plantations intended for paper production. Glyphosate is hands-down the most heavily used pesticide in New Brunswick forestry, and New Brunswick is second only to Ontario in Canada’s total area of glyphosate-treated forest. […]

(Beyond Pesticides, August 28, 2024) The U.S. Environmental Protection Agency’s (EPA) pesticide labeling requirements fail to adequately communicate acute toxicity levels to the public, as evidenced in a recent study of consumers published last month in the journal Nature. After evaluating whether the current three “signal” words (CAUTION, WARNING, DANGER) on pesticide products adequately convey pesticide toxicity, the authors conclude that current labeling may result in “unintended adverse effects” because it does not “effectively communicate toxicity risks to consumers.” The signal words on pesticide labels, based on laboratory animal testing for determining lethal doses, are intended to protect users of the product from exposure that can kill through inhalation, skin absorption, and ingestion of the pesticide. However, the signal words do not warn about long-effects like cancer, neurological diseases, reproductive harm, as well as other adverse effects associated with pesticide exposure. (See Pesticide-Induced Diseases Database.)   The study tests two prototype labels to evaluate the effectiveness of visual elements in communicating toxicity information, citing research in cognitive psychology that indicates visual elements, like images and graphics, are more effective for conveying information than text alone. This is particularly crucial for pesticide labels, where complex toxicity details need to be communicated quickly […]

(Beyond Pesticides, August 22, 2024) A screening and analysis of 36 pesticides finds traces of these chemicals in patients with “unexplained chronic kidney disease” from agricultural communities in the Indian province of Uttar Pradesh. Researchers conducting this study, published in the Journal of Toxicology and Environmental Health Sciences, identify organophosphates, organochlorines, and pyrethroids as the main culprits, building on years of existing research pointing to adverse health impacts originating from bioaccumulation of pesticides after acute and chronic exposure. Chronic kidney disease (CKD) is a condition that afflicts one in ten adults internationally, based on a peer-reviewed analysis from The Lancet. The Centers for Disease Control and Prevention (CDC) estimate that one in seven U.S. adults (or roughly 35.5 million people) have CKD, with as many as nine in ten adults with the disease undiagnosed, based on 2023 data. The correlation between high rates of CKD and multigenerational use of and reliance on pesticides for food production, lawn care, and general land management reinforces the calls of advocates, farmers, and health professionals to adopt a new approach rooted in organic principles. Methodology This study was conducted by a group of researchers from the Department of Chemistry at Babu Banarasi Das University […]

(Beyond Pesticides, August 20, 2024) A study published online in the journal Environmental Toxicology and Pharmacology raises continuing concern about residual exposure to organochlorine pesticides (OCPs) and the disruption that they and their metabolites and isomers cause to biological systems. For the most part, OCPs, including dichlorodiphenyltrichloroethane (DDT), are no longer used worldwide, but the legacy of their poisoning and contamination persists. A 2022 article in Environmental Science & Technology cites California condors and marine mammals along California’s coast contaminated with several dozen different halogenated organic compounds (hazardous, often-chlorinated chemicals) related to DDT, chlordane, and other now-banned legacy chemicals. Other research finds DDT in deep ocean sediment and biota. And, more research finds multigeneration effects from DDT exposure with grandmothers’ exposure to DDT increasing granddaughters’ breast cancer and cardiometabolic disorder risk. This study may be the first compilation of research regarding the modes of action for distinct types of organochlorine pesticides (OCPs). The findings raise the significant danger of legacy chemicals that persist for generations and call for a precautionary regulatory standard that is focused on preventing harm and advancing alternative nontoxic practices and products. In tracking the ongoing scientific literature on a broad spectrum of adverse effects daily, Beyond Pesticides […]

(Beyond Pesticides, August 15, 2024) Adding to research that has linked insecticide disruption of the gut microbial community to the progression of Parkinson’s Disease (PD) in the brain is a recently published study that further examines the gut-brain mechanism at work. A review by neuroscientist Nabanita Ghosh, PhD in Chemical Research in Toxicology—coauthored by Krishnendu Sinha, PhD, molecular toxicologist and applied pharmacologist, and molecular toxicologist Parames C. Sil, PhD—focuses on how pesticide-induced microbial community alterations specifically drive the initiation of PD and the precise mechanism. The study also explores microbiota changes at different stages of PD progression, offering recent findings.     The researchers derive their data from the examination of PD patients, evaluating the “interaction between pesticides and gut bacteria in PD patients, summarizing how pesticides cause imbalances in gut bacteria, the resulting changes, and their overall effects on the PD prognosis.”   The review “looks at how pesticides and gut bacteria separately influence PD development and progression, highlighting the harmful effects of pesticides and changes in gut bacteria.” The team concludes that pesticide exposure is connected to PD onset through “disturbances in gut function and alterations in intestinal microbiota.” However, the “exact role of microbial factors in this connection remains […]

(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 13, 2024) With novel methods to provide a big-picture view of the overlap between high pesticide use and cancer incidence across the U.S, a new study has again linked pesticide exposure to a range of cancers. The study by Jacob Gerkin, D.O. and colleagues, “Comprehensive assessment of pesticide use patterns and increased cancer risk,” published in Frontiers in Cancer Control and Society, examines the association between high-pesticide use and cancer diagnoses along with smoking incidence data and the Social Vulnerability Index, a measure used by the Centers for Disease Control and Prevention (CDC) that includes variables such as poverty, poor housing, and exposures to natural disasters and chemical spills. The researchers consider 69 pesticides used in agriculture that are monitored by the U.S. Department of Agriculture. They use U.S. Geological Survey data to map areas of similar crops and pesticide use patterns and incorporate public health data from the CDC to develop their final picture. In terms of threats to health, cancer remains top of mind for most people. Globally, about ten million people die of cancer each year. And while treatments for cancer and survival times have burgeoned over the years, many cancers—particularly colorectal and breast […]