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

(Beyond Pesticides, November 17, 2022) A report published in Toxicology and Applied Pharmacology finds organophosphate (OP) insecticides and the coronavirus (SARS-CoV-2/Covid-19) illicit similar damage to the heart and co-occurring exposure to both can escalate cardiac (heart) injury. Previous research suggests OPs may increase the ability of SARS-CoV-2 to cause COVID-19, especially among vulnerable individuals with underlying medical conditions. OPs have a wide range of biological uses—from insecticides to flame retardants—that make these chemicals ubiquitous, significantly contributing to ecosystem contamination. These compounds have a global distribution, with evaporation and precipitation facilitating long-range atmospheric transport, deposition, and bioaccumulation of hazardous chemicals in the environment. OPs are highly toxic, originating from the same compounds as World War II nerve agents, and residues are consistently present in human and animal blood, urine, tissues, and milk. Moreover, OPs are one of the leading causes of poisoning globally. Therefore, it is vital to understand how OP exposure will impact human health in conjunction with other immunologically compromising diseases like COVID-19. Cardiovascular diseases are among the leading causes of death globally. Additionally, heart conditions are one leading cause of disability in the U.S., as research demonstrates environmental pollutant exposure can increase the risk of developing cardiovascular disease, including stroke, heart attack, heart failure, atrial fibrillation, and cardiac […]

(Beyond Pesticides, November 15, 2022) Spraying a flowering plant with synthetic fertilizers makes it less attractive to bumblebees, according to research published this month in PNAS Nexus.  “A big issue is thus—agrochemical application can distort floral cues and modify behaviour in pollinators like bees,” said study author Ellard Hunting, PhD, of the University of Bristol, UK. The findings underscore the limited understanding that proponents of chemical agriculture have for the complex processes that food production relies upon and reinforce calls for a broad scale transition to regenerative, organic farming practices. Scientists began with the knowledge that spray applications of various agrichemicals affect the visitation patterns of bumblebees and other pollinators through a range of different processes. Past research finds that notorious bee-killing neonicotinoid insecticides not only kill bees outright, but also result in a range of complex damage, including their ability to impede bees’ olfactory senses and adversely affect their vision and flying ability. Other chemicals like glyphosate weaken bees’ ability to distinguish between colors.   A growing area of research is investigating the ways in which pollinators use static electric fields surrounding flowers to find food sources. A 2013 study found that bumblebees use floral electrical fields to discriminate […]

(Beyond Pesticides, November 14, 2022) Glyphosate weed killers induce antibiotic resistance in deadly hospital-acquired bacteria, according to a new study published late last month in the journal Scientific Reports. This is the latest finding connecting commonly used herbicides to the rise of antibiotic resistant bacteria. To put this finding in context, antibiotic resistance is rising to dangerously high levels in all parts of the world, according to the World Health Organization. In the May 1, 2022, issue of the Bulletin of the World Health Organization, Samira Choudhury, PhD, et al. writes, “Often referred to as the silent pandemic, antimicrobial resistance claims the lives of over 700,000 people annually.” The authors continue, “A study suggests that if no actions are taken, antimicrobial resistance will cause 10 million deaths per year by 2050 and an economic impact of over 100 trillion United States dollars.” Tell EPA and Congress that antibiotic pesticides in agriculture, lawns, and landscapes must be eliminated. Use of antibiotics in animal agriculture has long been recognized as a contributor to widespread antibiotic resistance. More recently, recognition of the contribution of antibiotics in plant agriculture has led to pressure to eliminate agricultural uses of antibiotics used in medicine. However, two facts […]

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

(Beyond Pesticides, November 9, 2022) A team of Dutch researchers has developed an artificial predator dubbed the RobotFalcon that can quickly and successfully scare bird flocks away from fields, providing a new practical, ethical tool to deter bird strikes near airports. Although it sounds like a conspiracy theory, in the skies above Workum, The Netherlands, for a period of time, some of the birds were not real. Current data indicate there are over 17,000 wildlife strikes to aircraft each year in the U.S., costing an estimated $500 million in economic losses, yet these problems are ongoing despite the U.S. Department of Agriculture’s Wildlife Services program killing hundreds of thousands of birds in and around airports each year through a range of lethal means, including the use of guns and pesticides. As a result, new management approaches that focus on effective, nonlethal alternatives to the use of toxic chemicals are urgently needed. Scientists began their research with the understanding that most bird deterrent methods “suffer from some degree of habituation: after repeated exposure, birds respond less.”  While habitation can be reduced through natural threats, the authors note that approaches like falconry are lethal and can be prohibitively expensive and difficult to […]

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

(Beyond Pesticides, November 7, 2022) The Maine Congressional delegation — Senators Collins (R) and Angus King (I), and Representatives Chellie Pingree (D) and Jared Golden (D), along with New Hampshire Senator Jeanne Shaheen (D) — have  introduced a bipartisan bill — the Relief for Farmers Hit with PFAS Act — to help farmers who have been adversely affected by the scourge of PFAS (perfluoroalkyl and polyfluoroalkyl substances) chemicals. The bills are the identical S. 5070 and H.R. 9186, both titled “Relief for Farmers Hit with PFAS Act.” Tell your U.S. Senators and Representative to cosponsor the Relief for Farmers Hit with PFAS Act. If they are already cosponsors, thank them. Tell EPA to stop the spread of legacy chemicals. PFAS chemicals, also known as “forever chemicals,” are legacy contaminants or those whose historical use, including many decades ago in some instances, has led to their toxic persistence in the environment and in organisms. PFAS chemicals are not the only legacy contaminants. Others include wood preservatives, DDT, dioxins, and the termiticide chlordane. Unfortunately, some of these continue to be added to the environment, sometimes inadvertently, but also intentionally, particularly through pesticide use. As indicated by the title of these bills, farmers […]

(Beyond Pesticides, November 3, 2022) In a fight against global warming, environmental groups Center for Biological Diversity (CBD) and Californians for Pesticide Reform (CPR) filed a formal legal petition in October 2022 urging the California Air Resources Board (CARB) to phase out the use of sulfuryl fluoride insecticides. Sulfuryl fluoride is a fluoride compound with various adverse health effects, including cancer, endocrine disruption, neurotoxicity (reduced IQ), and reproductive damage. CARB added sulfuryl fluoride to its list of “short-lived climate pollutants,” being the only state to do so since 1990. However, California does not include sulfuryl fluoride in the list of GHG emissions to reduce by 2020 as researchers were unaware the chemical was a greenhouse gas (GHG) until 2008. These termite and food use insecticides are 4,800 times more potent GHG than carbon dioxide at trapping carbon in the atmosphere. Furthermore, sulfuryl fluoride has high global warming potential and can remain in the atmosphere for more than 36 years. The case of sulfuryl fluoride presents an all too familiar pattern of widespread chemical use without proper knowledge of health and environmental effects before implementation and a failure to take regulatory action on known hazards after allowed in commerce. Therefore, CBD’s […]

(Beyond Pesticides, October 31, 2022) Just as the Environmental Protection Agency (EPA) issued a request for information on improving indoor air quality, it approved 32 varieties of a new “air sanitizer” to kill bacteria and viruses in the air. These products contain 14% dipropylene glycol and 86% secret (“other”) ingredients, including fragrances. Tell EPA that clean air, NOT “sanitized” air, protects against disease. Through its approval of such sanitizers, EPA promotes the false reasoning that a chemical that kills a pathogen necessarily protects health. Although disinfectants and sanitizers kill viruses, bacteria, and other microbes, they can also negatively affect the immune system, thus reducing resistance to disease. People who have a preexisting condition or are of advanced age, who may have a weakened immune or respiratory system, are more vulnerable to the effects of the virus. Children are at elevated risk from exposure. When managing viral and bacterial infections, chemicals that exacerbate the risk to vulnerable individuals are of serious concern. EPA opened a 60-day public comment period “to solicit information and recommendations from a broad array of individuals and organizations with knowledge and expertise relating to the built environment and health, indoor air quality, epidemiology, disease transmission, social sciences […]

(Beyond Pesticides, October 28, 2022) The Maine Congressional delegation — Senators Collins (R) and Angus King (I), and Representatives Chellie Pingree (D) and Jared Golden (D) — along with New Hampshire Senator Jeanne Shaheen (D), have introduced a bipartisan and bicameral bill — the Relief for Farmers Hit with PFAS Act — to help farmers who have been impacted by the scourge of PFAS (perfluoroalkyl and polyfluoroalkyl substances) chemicals. (The Senate version of the bill is available; the House version should be soon.) PFAS contamination has, as Beyond Pesticides documented in two Daily News Blog articles (here and here), become a huge, life-altering problem for agricultural producers in Maine and many other states. An early 2022 Safer States analysis of state-level legislation on PFAS demonstrated the extent of the problem via the response: more than 32 states have begun to act on the issue. Beyond Pesticides has covered the presence of PFAS in pesticides and pesticide containers, and in so-called “biosludge” or “biosolids”— realities that only reinforce the call for a rapid transition off of chemical-dependent agriculture and to regenerative organic agricultural practices that do not carry the enormous health and environmental risks of pesticide products and contaminated fertilizers. There […]

(Beyond Pesticides, October 27, 2022) A study published in Environment International adds to the growing body of research evaluating the association between neonicotinoid insecticides (neonics/NIs) and breast cancer. Past studies suggest neonics act as endocrine disruptors, affecting the development and regulation of estrogen hormones that promote breast cancer. However, this study is one of the few to evaluate the toxicological and molecular mechanisms involved in initiating breast cancer events. 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. Most common forms of breast cancer have receptors on the cell surface that can increase cancer growth when activated by estrogen, progesterone, or too much of the protein called HER2. One in ten women will receive a breast cancer diagnosis, and genetics can only account for five to ten percent of cases. When a cancer cell lacks receptors for these molecules, G protein-coupled estrogen receptors (GPERs) are an essential biological target of estrogen and plays a role in hormone-dependent cancer development. GPERs regulate estrogen through non-genetic cellular pathways, forgoing attachment to standard molecular receptors, leading to triple-negative breast cancer (TNBC). Although past […]

(Beyond Pesticides, October 26, 2022) Inflammatory bowel disease (IBD) may be exacerbated by exposure to the herbicide propyzamide, used in both agriculture and on ornamental lawns and landscapes, according to research published in the journal Nature this month. As the rate of autoimmune diseases continues to increase rapidly in the U.S. and the world, it is critical for scientists to better understand the etiology behind these diseases and the environmental factors contributing to their development. Recent data show that the number of people living with Crohn’s disease and ulcerative colitis, common types of IBD, have risen annually by 3.4% and 2.8% respectively, between just the years 2001 to 2018. “As we learn more about the environmental factors that might contribute to disease, we can develop state- and national-level strategies to limit exposures,” said study coauthor Francisco Quintana, PhD. “Some chemicals don’t seem to be toxic when tested under basic conditions, but we do not yet know about the effect of chronic, low-level exposures over decades, or early-on in development.” Researchers did not begin their study investigating propyzamide. Initial intent focused on better understanding environmental factors that may be contributing to IBD. Using a range of different models, scientists cross-referenced data […]

(Beyond Pesticides, October 21, 2022) The U.S. Environmental Protection Agency (EPA) has just made two announcements, related to the quest for improved indoor air quality in buildings, that address mitigation of disease transmission — and that of COVID-19, in particular. Related to enactment of the National COVID-19 Preparedness Plan, EPA issued guidance on the efficacy of antimicrobial products used on surfaces, and registered a new pesticide product the agency says can be used against influenza and corona viruses (some of the latter cause COVID-19 infections). In addition, EPA opened a 60-day public comment period “to solicit information and recommendations from a broad array of individuals and organizations with knowledge and expertise relating to the built environment and health, indoor air quality, epidemiology, disease transmission, social sciences and other disciplines.” Beyond Pesticides cannot help but note the irony of an intention to improve air quality that EPA couples with registration of a new, airborne pesticide for indoor use. EPA expands on its RFI (Request for Information) related to indoor air quality, saying that it is “seeking input from a diverse array of stakeholders . . . about actions, strategies, tools and approaches that support ventilation, filtration and air cleaning improvements, and […]

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

(Beyond Pesticides, October 19, 2022) Pet flea collars containing the insecticide tetrachlorvinphos (TCVP) are set to be banned by the U.S. Environmental Protection Agency, according to the agency’s long overdue response to a petition from the Natural Resources Defense Council (NRDC). The highly toxic pesticide has not been used on crops since 1987, yet was permitted for decades in flea collars where children could be intimately exposed to the chemical while petting and playing with the family pet. The decade-long process of bringing use of these products to an end exposes the failures of the U.S. pesticide regulatory system, and how EPA’s weak and flawed decisions that infect the marketplace with severe consequences. One may ask: How many veterinarians prescribed these dangerous flea collars to pet owners, assuming that EPA has properly assessed exposure risks to their human owners? Advocates concerned about EPA’s ongoing propensity to defer to the pesticide industry are urging an overhaul of the regulatory process and a reorientation toward toxic pesticide elimination and the adoption of organic in order to address serious health and environmental threats. NRDC originally filed its petition to ban all uses of TCVP in 2009. The petition noted that the agency completely […]

(Beyond Pesticides, October 18, 2022) Washington, D.C. Attorney General (AG) Karl Racine is suing chemical manufacturer Velsicol to recover damages caused by the company’s production and promotion of the insecticide chlordane despite full knowledge of the extreme hazards posed by the pesticide. Over 30 years after it was banned, chlordane is still contaminating homes, schools, yards, private wells and waterways throughout the United States, including DC’s Anacostia and Potomac rivers. While the District’s focus on restitution and remediation for this highly hazardous, long-lived insecticide is laudable, many advocates say the city is not doing enough to stop pesticide contamination currently entering the city’s waterways. Despite passage of a strong pesticide bill in 2016 limiting toxic pesticide use on schools, child occupied facilities, and within 75ft of a waterbody, D.C. Department of Energy and Environment (DDOE) director Tommy Wells has failed to update regulations and enforce the law. Chlordane is an organochlorine insecticide, of the same class as DDT, and was likewise discussed extensively in Rachel Carson’s Silent Spring. Like other organochlorines, it is bioaccumulative, increasing contamination levels as it works its way up the food chain, and highly persistent, remaining in the environment for decades and perhaps even centuries, with breakdown […]

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

(Beyond Pesticides, October 12, 2022) The U.S. Environmental Protection Agency (EPA) is asking a federal court for permission to go back and reconsider its decision to reapprove use of the highly hazardous herbicide paraquat, according to a filing submitted by the agency late last month. Advocates see the move as encouraging, since meaningful EPA action on this Parkinson’s-linked chemical is long overdue. Last year, advocates condemned the Biden Administration for its reapproval of the weed killer with fewer protections than those proposed by the Trump Administration, marking a deeply concerning sign for pesticide reform campaigners looking to the administration for positive change. EPA’s request is the result of a legal challenge brought by the California Rural Legal Assistance Foundation, Earthjustice, Farmworker Association of Florida, Pesticide Action Network, and the Michael J. Fox Foundation for Parkinson’s Research.  The groups argued that the agency’s decision to reregister paraquat was not legal based on substantial evidence that the chemical poses unreasonable risks to human health and the environment. While EPA made its initial decision to reapprove paraquat in the late days of the Trump Administration, it was under the Biden Administration that the agency reversed a proposed ban on aerial use, permitting broad-scale […]

(Beyond Pesticides, October 7, 2022) Pyrethroid insecticides are associated with the growing worldwide epidemic of non-alcoholic fatty liver disease (NAFLD), a condition that causes swelling of the liver and can eventually lead to cirrhosis, cancer, or liver failure. According to research published in Environmental Science and Ecotechnology, exposure to pyrethroids like bifenthrin can induce gut microbiota dysbiosis (an imbalance in microorganisms in the intestines). This dysbiosis results in abnormal lipid (fat) metabolism and subsequent accumulation of lipids in liver cells, contributing to NAFLD development. Gut microbiota plays a crucial role in lifelong digestion, immune and central nervous system regulation, as well as other bodily functions. Through the gut biome, pesticide exposure can enhance or exacerbate the adverse effects of additional environmental toxicants on the body. Since the gut microbiome shapes metabolism, it can mediate some toxic effects of environmental chemicals. However, with prolonged exposure to various environmental contaminants, critical chemical-induced changes may occur in the gut microbes, influencing adverse health outcomes. Considering NAFLD is becoming the most prevalent form of liver disease, impacting at least 25 percent of the globe, and a growing body of evidence demonstrates the significance gut microbiota play in overall health, safety analyses that currently do not consider the […]

(Beyond Pesticides, October 6, 2022) A new study finds alarmingly high levels of PFAS (Per- and Polyfluoroalkyl Substances) “forever chemicals” in commonly used pesticides, calling into question assurances from the U.S. Environmental Protection Agency (EPA) that contamination is limited to storage containers. For some pesticides, PFAS levels are nearly one billion times higher than the EPA’s recently updated Health Advisory for the PFAS chemical PFOS. “If the intent was to spread PFAS contamination across the globe there would be few more effective methods than lacing pesticides with PFAS,” said Kyla Bennett, PhD, of the nonprofit Public Employees for Environmental Responsibility. “These findings point to an appalling regulatory breakdown by EPA.” A team of researchers based in Texas, including scientists from Texas Tech and the U.S. Department of Agriculture’s (USDA) Cropping Systems Research Laboratory, participated in the study published in the Journal of Hazardous Materials Letters. Ten different formulated pesticide products were tested for 24 different PFAS substances. The pesticide products selected were determined based on unexpected PFAS contamination at USDA’s research facility. During the course of conducting a separate study on plant uptake of PFAS, detectable levels of PFAS were found in plants intended to be used as unexposed controls. […]

(Beyond Pesticides, October 5, 2022) Exposure to widely used synthetic pyrethroids, present in many mosquito adulticides and household insecticides like RAID, is associated with a diagnosis of rheumatoid arthritis, according to research published in Environmental Science and Pollution Research. This is the latest pesticide-induced disease associated with this dangerous class of chemicals – a harm to individual Americans that the U.S. Environmental Protection Agency (EPA) is not considering when it registers pesticides. To remedy the major deficiencies in EPA’s reviews, and protect residents from chronic disease, more and more communities are transitioning to safer, organic pest management practices that do not require pyrethroids and other toxic synthetic pesticides. Rheumatoid arthritis (RA) is an autoimmune disease that causes systemic inflammation throughout the body, resulting in progressive damage to an individual’s joints. In the United States, roughly 1.3 million adults suffer from RA, accounting for nearly 1% of the adult population. Health care costs associated with the disease reach nearly $20 billion annually. To better understand the etiology behind the disease, an international team of researchers from China, Illinois, and Missouri analyzed data from the 2007-2014 National Health and Nutrition Examination Survey (NHANES), a long-running program that began in the early 1960s […]

(Beyond Pesticides, October 4, 2022) A study published in Environmental Pollution finds pyrethroid insecticides contribute to a secondary source of contamination in water resources. Various pyrethroids, including bifenthrin, are detectable in urban catch basins (storm drains) that collect runoff water before draining into the open environment. There is a lack of information regarding the pesticides’ presence in urban catch basins. However, pesticide contamination in water resources is historically commonplace and widespread throughout U.S. rivers and streams, with at least five different pesticides present in 90 percent of water samples. Moreover, thousands of tons of pesticides not only enter waterways (e.g., rivers, streams, lakes, oceans) around the U.S. through urban catch basins but agricultural and nonagricultural sources as well, contaminating essential drinking water sources, such as surface water and groundwater. Reports like these are essential for determining appropriate regulatory action to protect the human, animal, and environmental health from chemical toxicant contamination, especially if chemical contamination is highly detectable. The study notes, “The high detection frequency of bifenthrin and overall pyrethroid concentrations, especially for particle-bound residues, suggest that underground urban catch basins constitute an important secondary source for extended and widespread contamination of downstream surface waters by pesticides such as pyrethroids in urban […]