(Beyond Pesticides, August 14, 2018) A federal judge in Brazil has ordered the suspension of the most widely used pesticide in the world, glyphosate. Under the ruling, new products may not be registered in the country until the Brazilian government reevaluates the herbicide’s toxicity. Glyphosate (Roundup) is used widely in Brazil on genetically engineered (GE) crops, which have been subject of concern in the country. This decision preceded a jury verdict last Friday in San Francisco that handed a 46-year-old groundskeeper $289 million for compensatory and punitive damages associated with his non-Hodgkin lymphoma tied to glyphosate/Roundup exposure. Monsanto, glyphosate’s manufacturer saw its stock plunge 14%, or approximately $11 billion, the next day, according to Bloomberg News. Monsanto told the Wall Street Journal that it would appeal the decision. According to Therecorder, “So far, more than 4,000 people have sued over Roundup, most in Missouri and California state courts. About 470 cases have been coordinated in California federal court as multidistrict litigation.” The San Francisco case was heard first because of the plaintiff’s poor health. The judge in Brasilia ruled on August 3, 2018 that new products containing the chemical could not be registered in the country and existing registrations would be […]

(Beyond Pesticides, August 12, 2018) In a stunning legal victory for a man who contracted non-Hodgkin lymphoma (NHL) after using the herbicide glyphosate (Roundup), groundskeeper Dewayne Johnson won a $289 million jury verdict against the chemical’s manufacturer, Monsanto. The jury on August 10, 2018 awarded the 46-year old Mr. Johnson $39 million in compensatory damages, and $250 million in punitive damages. The jury found that Monsanto acted with “malice or oppression.” “We applaud and thank Mr. Johnson, and his family and attorneys, for persevering in this litigation, which sets a critically important standard for protecting people’s right not be poisoned by pesticides in the marketplace,” said Jay Feldman, executive director of Beyond Pesticides. Mr. Feldman continued: “While we know that the jury verdict cannot restore Mr. Johnson’s health, we believe that the verdict is a clarion call to manufacturers that ignore the devastating impact that their products can have on unsuspecting workers, consumers, and families. We look forward to the day in the not-too-distant future when we recognize as a society that products like glyphosate (Roundup) are not necessary, and effective and affordable land and building management can be achieved without toxic chemicals. The case should also signal to all […]

(Beyond Pesticides, August 10, 2018) The U.S. Environmental Protection Agency (EPA) must ban a widely used organophosphate pesticide linked to brain damage in children, the 9th Circuit Court of Appeals ruled yesterday. The appellate court ordered EPA to finalize its proposed ban on chlorpyrifos, produced by DowDupont, based on undisputed findings that the pesticide is unsafe for public health, and particularly harmful to children and farmworkers. The ruling comes in a lawsuit brought by a coalition of labor and health organizations, represented by Earthjustice. In the absence of EPA action, states have started to stand up. In May, the state legislature in  Hawaii passed legislation, which took effect in May, to become the first state to ban the chemical. On July 30, the California Department of Pesticide Regulation (DPR) released its scientific assessment concluding that the organophosphate insecticide, chlorpyrifos, should be listed as a Toxic Air Contaminant (TAC) in the state based on evidence of its neurological effects and exposure risks of concern. Legislation is also pending in Congress to ban chlorpyrifos and similar pesticides nationwide. Chlorpyrifos is a dangerous nerve agent pesticide that can damage the developing brains of children. Prenatal and early life exposure to chlorpyrifos is linked to lower birth weight […]

(Beyond Pesticides, August 9, 2018) Last week, the Massachusetts legislature failed to pass legislation that would have restricted the use of neonicotinoid pesticides in the state in order to protect sensitive pollinators, but advocates vow to campaign for a victory in the next legislative session. H. 4041, would have restricted neonicotinoid uses to certified applicators only. Massachusetts beekeepers lost 65 percent of honey bee hives this year, a rate 25 percent higher than the national average. H. 4041, An Act to Protect Massachusetts Pollinators, introduced in 2017, failed to make it to the floor before the end of the legislative session, which ended July 31. The bill gained the support of more than 100 Massachusetts scientists and academics who sent a letter to the Joint Committee on Environment, Natural Resources and Agriculture in support. Over 180 scientists, businesses, beekeepers, farmers, and conservationists formally endorsed this bill to restrict neonicotinoid use to licensed applicators. The Massachusetts County Beekeepers Association worked to organize an extensive grassroots advocacy movement in support of the bill. H.4041 would have placed “common-sense” restrictions on unlicensed use of neonicotinoids. It would require neonicotinoids to be used by licensed or certified applicators, and would also limit the use […]

(Beyond Pesticides, August 8, 2018) On July 30, the California Department of Pesticide Regulation (DPR) released its scientific assessment concluding that the organophosphate insecticide, chlorpyrifos, should be listed as a Toxic Air Contaminant (TAC) in the state based on evidence of its neurological effects and exposure risks of concern. This comes after the 2017 decision by the U.S. Environmental Protection Agency (EPA) reversed its decision to ban the dangerous chemical after intervention by its manufacturer. Decades of scientific data show that chlorpyrifos damages fetal brains and produces cognitive and behavioral dysfunctions, particularly in utero and in children. Even at low levels of exposure chlorpyrifos can impact the developing fetus in pregnant women resulting in impaired learning, change in brain functions, and alter thyroid levels of children into adulthood. A study conducted by the Columbia University Center for Children’s Environmental Health (CCCEH) found that chlorpyrifos in umbilical cord blood samples corresponded with a decrease in the psychomotor and mental development in three-year olds. Additional data collected by CCCEH researchers demonstrated that children exposed to high levels of chlorpyrifos experience developmental delays, attention deficit, hyperactivity, as well as other pervasive developmental disorders. But despite this, and the advice of the agency’s own scientists, EPA, under the direction […]

(Beyond Pesticides, August 7, 2018) At the same time that a new analysis by California’s Department of Pesticide Regulation (DPR) finds current neonicotinoid uses in the state expose bees to residue levels known to cause harm, the Trump administration has reversed a 2014 U.S. Fish and Wildlife (FWS) decision to ban neonicotinoids on National Wildlife Refuges. In 2014, newly passed state legislation required DPR to study the impacts of neonicotinoids (imidacloprid, thiamethoxam, clothianidin, and dinotefuran) and adopt control measures to protect sensitive pollinator health within two years. In its report, released last month, DPR finds the highest risk to bees is posed by use of two neonicotinoids, thiamethoxam and clothianidin, on cereal grains like corn, wheat, rice, and barley. The seeds of these crops are typically coated with neonicotinoids before planting, where residues persist in the pollen and nectar. Although these findings are not surprising and have been documented in the scientific literature, California’s analysis indicates neonicotinoids can cause much broader harm, including to pollinators commonly found on many types of vegetables, cereal grains, tree nuts, fruits and tobacco. Shortly after a decision in the Pacific Region, FWS announced that all National Wildlife Refuges would join in the phase-out of neonics (while also phasing out genetically […]

(Beyond Pesticides, August 2, 2018) Weed scientists from the University of Missouri (UM) have just published evidence of a water hemp population resistant to six different herbicides. The study is sending shock waves throughout the chemical-intensive agricultural community, particularly in light of the plant’s resistance to 2,4-D. In its reporting on the study, KTIC Rural Radio begged the question, “If we’re already seeing 2,4-D resistance now, what will happen when use of the herbicide becomes even more commonplace?” KTIC is referring to the impending commercialization of products like Enlist Duo, developed by DowDupont in an attempt to address widespread weed resistance to glyphosate. Enlist Duo is an herbicide containing both glyphosate and 2,4-D, and is intended to be sprayed only on crops genetically engineered (GE) to tolerate exposure to both chemicals. However, with growing reports like this, many farmers may begin to rethink their approach. In 2014, a farmer contacted UM indicating that water hemp was not responding to 2,4-D during a regular ‘burndown’ the farmer conducted before planting a new crop. (Chemical-intensive farmers will often use a synthetic herbicide to clear their field for new plantings.) The farmer had also used other herbicides, fomesafen and glyphosate, in this process […]

(Beyond Pesticides, August 1, 2018) According to new research from the University of Sussex, bees living in suburban habitats are still being exposed to high levels of neonicotinoid pesticides. Even though there is a European Union (EU) ban on these chemicals, the ban focuses on agricultural and not residential applications. The study’s authors are urging gardeners to forgo the use of these pesticides in favor of more holistic, pesticide-free approaches. The authors of the study say it is the first of its kind to highlight the risk to bees in urban areas posed by garden use of pesticides. Entitled Monitoring neonicotinoid exposure for bees in rural and peri-urban areas of the UK during the transition from pre- to post-moratorium, the study sampled pollen and nectar from bumblebee colonies in rural and peri-urban habitats in three UK regions–Stirlingshire, Hertfordshire, and Sussex over three years. Sampling began prior to the ban (2013), during the initial implementation when some seed-treated winter-sown oilseed rape was still grown (2014), and following the ban (2015). Honey bee colonies in rural habitats were also sampled to compare species-level differences between bumblebees and honey bees. Not surprisingly, the researchers find pesticide contamination in more than 50 percent of the samples, […]

(Beyond Pesticides, July 26, 2018) A legal complaint filed by a Kansas farmer claims industry giant, Monsanto, knew its new dicamba-formulated product would harm other crops, but marketed and sold it anyway, damaging thousands of acres of crops. The lawsuit, filed by 4-R Farms based in Corning Kansas, lost over 200 acres of soybeans. This is the latest in a string of lawsuits Monsanto is facing. Farmers in Arkansas, Missouri, and elsewhere have been hit with crop losses as a result of the dicamba damage. Advocates  and victims of damage argue that Monsanto places profits ahead of possible damage to crops when it markets seeds resistant to a powerful weedkiller before making a less volatile herbicide available. This, according to the lawsuit filed in court. The petition, filed last week, could be the catalyst for a class action lawsuit of Kansas farmers against Monsanto, which faces a growing docket of legal challenges. The lawsuit also names chemical company BASF as a co-defendant. BASF is facing its own mounting pile of lawsuits over dicamba. The lawsuit requests unspecified damages and a trial by a federal jury in Topeka. Monsanto marketed its new line of dicamba products, Xtend, to go hand in hand with […]

(Beyond Pesticides, July 19, 2018) A variety of bentgrass, genetically engineered by Scotts Miracle-Gro and Monsanto to tolerate the glyphosate herbicide Roundup, escaped from an experimental field planting in Eastern Oregon 15 years ago, and continues to plague area farmers. Bentgrass is prized by those who maintain golf course greens because of its fine texture and habit of spreading in even, horizontal mats. But the genetically engineered (GE) version has become a giant annoyance for farmers and other growers who battle its spread through the irrigation systems of Malheur County in eastern Oregon. The escape of this GE version of Agrostis stolonifera is especially alarming in Oregon, the grass seed capital of the world. The GE grass showed up after crossing the Snake River from where it had been planted in seed fields in Idaho, despite the fact that the USDA had not approved its release into the seed market. By 2010, farmers and others found it spreading in mats across most of the irrigation canals and ditches that snake across Malheur County. It is now found in Jefferson County, Oregon, and Canyon County, Idaho, as well. The growth habit of the perennial grass is what greenskeepers love, but its persistent […]

(Beyond Pesticides, July 17, 2018) Last week, closing arguments were made in the 9th Circuit Court of Appeals challenging the U.S. Environmental Protection Agency’s (EPA) refusal to ban chlorpyrifos, the pesticide science links to a host of neurological impairments in children. A coalition of labor and health organizations represented by Earthjustice asked a panel of three judges to overturn former EPA Administrator Scott Pruitt’s decision not to ban chlorpyrifos. In June 2017, a dozen health, labor, and civil rights organizations represented by Earthjustice filed an administrative appeal to EPA urging the federal government to ban chlorpyrifos. The attorneys general of New York, California, Washington, Massachusetts, Maine, Maryland and Vermont also filed their own appeal calling for a ban. The groups also filed a court case that asked the 9th Circuit Court in San Francisco to decide the issues presented in the administrative appeal because of the likelihood of a delayed resolution by the EPA. This was the last hearing where the health and labor groups, as well as states, were able to present their arguments to the court of appeals and answer the judges’ questions. The New York Attorney General’s office also presented arguments on behalf of seven states, which intervened in […]

(Beyond Pesticides, July 12, 2018) Neonicotinoid insecticides have become notorious for their impacts to insect pollinators like bees and butterflies, but research finding the presence of these chemicals in wild turkeys is raising new concerns about the ubiquitous nature of these chemicals once released into the environment. Published in Environmental Science and Pollution Research by a team from the University of Guelph (UG), this new study highlights the broader effects of neonicotinoids on wildlife, and underlines calls to restrict the use of these products in favor of a more sustainable pest management approach. Looking at roughly 40 wild turkeys in southern Ontario, researchers found 10 that contained pesticide residue in their livers. Claire Jardine, PhD, pathobiology professor and study co-author notes that wild turkeys in agricultural regions are more likely to be contaminated. “Wild turkeys supplement their diet with seeds from farm fields,” she indicated in a press release. The agrichemical industry coats a majority of corn and soybean seeds with neonicotinoids prior to planting. Because of their systemic nature, neonicotinoids are incorporated the seedlings as they grow, with the promise by the industry that this will alleviate pest pressure. However, a significant body of research, including EPA studies, have […]

(Beyond Pesticides, July 6, 2018) Two years ago, thirteen bald eagles were found dead on a farm in Maryland. Now the investigation has revealed that these birds died after ingesting the highly toxic pesticide, carbofuran. Carbofuran, whose use has been phased out in the U.S., is so toxic to birds that one granule is all it takes to kill. Irresponsible and illegal use of pesticides is still responsible for primary and secondary poisonings of wildlife, as is the case of these bald eagles. According to the necropsy results by U.S. Fish and Wildlife Service (FWS), which analyzed six of the thirteen eagle carcasses, five of the carcasses were found to have undigested raccoon remains in their systems. Carbofuran was detected in the stomach and/or crop contents of all birds, as well as on the partial remains and fur of a raccoon that was found nearby. The granular form of carbofuran has been blamed for the deaths of more than a million birds in the U.S. who mistook the granules for seed. The granules were finally banned in the early 1990s, while the liquid formulation was banned on food crops in 2009, although the painfully slow process of cancellation by the U.S. […]

(Beyond Pesticides, June 29, 2018) It is widely known that pollinators are in trouble. In light of this, Kroger (which includes numerous other grocery chains, like Harris Teeter) announced in a press release last week — during National Pollinator Week —  a phase-out by 2020 of live garden plants treated with the insecticides most closely associated with the decline of bee populations, the neonicotinoids. In May, Costco updated its pollinator policy, which “encourages” its suppliers of garden plants, fruits, and vegetables to limit the use of bee-toxic pesticides and adopt ecological practices. The company in 2016 announced a policy to encourage suppliers to change their pesticides. In a statement that has broad implications for pollinator and environmental protection, Kroger included the following statement about organic food in its press release: “Kroger also offers one of the largest organic produce departments in America, which is desirable for customers looking to minimize potential exposure to synthetic pesticides. Representing nearly 20 percent of America’s annual organic produce business, Kroger sales reached $1 billion in 2017. A dedicated procurement team partners with more than 300 organic produce growers and suppliers every year to bring customers a growing selection of organic fruits and vegetables.” Costco is also […]

(Beyond Pesticides, June 22, 2018) Mosquito misters pose a threat to human health. They also harm bees and other flying pollinators and are the least effective way to deal with biting mosquitoes. These devices are typically placed outdoors and spray insecticides –mostly in an attempt to control mosquitoes.  In May, the Connecticut state legislature voted to ban the use of residential pesticide misting systems. Urge your Governor and state legislators to ban pesticide misters. In addition to the threat to people’s health, misters harm pollinators who may be foraging in an area where the devices are used. Studies find that sublethal concentrations of synthetic pyrethroids significantly reduce bee fecundity and decrease the rate at which bees develop to adulthood and reproduce. Field and laboratory studies using pyrethroids have consistently documented decreases in foraging activity and activity at the hive entrance after exposure. While pesticides are regulated by the U.S. Environmental Protection Agency (EPA), pesticide misters and other application devices are not subject to EPA oversight, leaving states with the authority to control their use. Connecticut appears to be the first state to restrict pesticide misting machines through legislation. The state of New York took an administrative approach to regulating these devices, as the commissioner of the […]

(Beyond Pesticides, June 20, 2018) Bumblebee queens that wake up from hibernation to a neonicotinoid-contaminated, monofloral landscape take longer to set up their nest and die-off at higher rates, according to new research from the University of California, Riverside (UCR) published in the journal Proceedings of the Royal Society B.  While this is the first study to evaluate multiple stressors – pesticide exposure and a monotypic diet – on bumblebee pollinators as they initiate a new colony, it is far from the first to conclude that the neonicotinoid class of insecticides result in unacceptable adverse impacts to insect pollinators. With Pollinator Week 2018 underway, advocates say it is time that the U.S. catches up to the European Union and Canada and starts to ban the use of bee-toxic neonicotinoid insecticides. Bumblebee queens only live long enough to produce one colony. After establishing a colony over the spring and summer months, by fall a new queen hatches and the old queen dies. The new queen leaves the nest and mates, then goes underground to seek shelter and hibernate over the winter. If she makes it through the winter, the single queen will then emerge in spring to begin her own colony […]

(Beyond Pesticides, June 19, 2018) Some 200 members of a French beekeeping cooperative in the northern Aisne region have sued Bayer — on the same day the giant chemical company’s acquisition of Monsanto was finalized — after discovering that their honey was contaminated with toxic glyphosate, a known endocrine disruptor and probable human carcinogen (according to the World Health Organization’s International Agency for Research on Cancer). Monsanto is the long-time manufacturer of Roundup, the popular glyphosate pesticide; Bayer now owns not only the company, but also, the liabilities that come with it, including the “Monsanto” name. Environmental activists had denounced the merger, which creates an agrichemical leviathan that promotes use of chemical herbicides and genetically engineered/modified (GE/GMO) seeds. The beekeepers’ suit was filed in early June after Famille Michaud, a large French honey marketer, detected glyphosate contamination in three batches from one of the coop’s members — whose hives happen to border large fields of rapeseed, beets, and sunflowers. Glyphosate is commonly used in French agriculture; President Emmanuel Macron has vowed to ban its use by 2021. Emmanuel Ludot, a lawyer for the cooperative, is looking for an outcome that includes mandated investigation of the extent of glyphosate contamination of honey, and […]

(Beyond Pesticides, June 15, 2018) In recognition of the importance of pollinators and biodiversity to a healthy environment and healthy people during National Pollinator Week, June 18-24, Beyond Pesticides announces a week of activities and actions. Monday (June 18) Watch and share the new short-film “Seeds that Poison.” To kick off Pollinator Week 2018, Beyond Pesticides is releasing a new video highlighting the hazards associated with a major use of bee-toxic pesticides – seed coatings. Please watch and share with friends and family! Click here to watch Seeds that Poison. After distributing the film, please contact your state elected officials to ask that they act to protect pollinators. (Connecticut and Maryland have taken action.) Folks in the DC area can also attend a “Pollinator Forum” to learn about pollinators and celebrate them. The event is taking place at the Tabard Inn (Monday, June 18) and will feature Beyond Pesticides’ Science and Regulatory Director Nichelle Harriott. Click here to purchase tickets. Tuesday Plant pollinator habitat. Explore Beyond Pesticides’ resources to find ideas for native plantings or sources of untreated flowers and dig your pollinator-friendly garden today. Use the Bee Protective Habitat Guide and or Pollinator-Friendly Seed Directory to help! Wednesday Take local action. […]

(Beyond Pesticides, June 14, 2018) With nearly 40% of Americans diagnosed as clinically obese, leading to health care costs estimated at over $200 billion, researchers are focusing on ways individuals can reduce their exposure to chemicals that contribute to weight gain regardless of diet or exercise. These chemicals, known as “obesogens,” include a range of consumer products, from pesticides to plastics and flame retardants. While diet and exercise remain critically important to fighting the ongoing obesity epidemic, obesogens may be working to increase appetite, fat storage, or make it more difficult for the body to shed fat once it is gained. In a presentation at the European Society for Endocrinology in Barcelona, researchers from the Universities of Aveiro and Beira Interior, Portugal identified ways these chemicals are entering our environment, and good habits to employ in order to reduce obesogen exposure. “Obesogens can be found almost everywhere, and our diet is a main source of exposure, as some pesticides and artificial sweeteners are obesogens. Equally, they are present in plastics and home products, so completely reducing exposure is extremely difficult – but to significantly reduce it is not only feasible, but also very simple”, lead researcher Ana Catarina Sousa, PhD, […]

(Beyond Pesticides, June 7, 2018) Health Canada is proposing to phase out a number of uses of neonicotinoids in order to mitigate risks to pollinators. The agency has completed its review of clothianidin and thiamethoxam — two neonicotinoids that have been linked to pollinator decline and finds risks of concern for bees. However, these measures do not go as far as those recently made in the European Union, but further than label restrictions issued by the U.S. Environmental Protection Agency (EPA). Health Canada concluded its Pollinator Re-evaluation for clothianidin and thiamethoxam after examining hundreds of laboratory and outdoor field studies that examined the possible effects on bees from wide-ranging situations. The agency finds that uses of these neonicotinoids have “varying degrees of effects on bees,” and that some uses “may pose a risk of concern to bees.” However, instead of a complete ban of the neonicotinoids, the agency is proposing mitigation measures to minimize potential exposure to bees, which includes the phase-out of many uses and certain additional product label statements. Clothianidin will see a phase-out of the following uses: Foliar application to orchard trees and strawberries, and Foliar application to municipal, industrial and residential turf sites. There will also […]

(Beyond Pesticides, June 6, 2018) By the close of 2018, three top neonicotinoid (neonic) pesticides, linked to the worldwide decline in bee populations, will be banned for outdoor use in the European Union (EU), based on the General Court of the European Union’s (GCEU) ruling last month. The GCEU, the equivalent of the U.S. Supreme Court, ruled in favor of taking precautionary action to protect pollinators from clothianidin, imidacloprid, and thiamethoxam. This ruling allows for the limited use of neonic-treated seeds grown in permanent greenhouses where contact with bees is not expected. In its lawsuit, multinational seed and chemical companies, Syngenta and Bayer –manufacturers of the neonics in question– argued unsuccessfully that the pesticides do not necessarily harm bees if farmers use them according to label instructions. Syngenta also sought compensation of approximately $435 million to offset market losses resulting from the ban, but that, too, was denied. In rejecting the arguments of Syngenta and Bayer, the high court aligned itself with the European Food Safety Authority (EFSA) and its assessment of the harm caused by the widely used pesticides. EFSA’s updated assessment, released in February of this year, provided convincing evidence that neonics represent a risk to wild bees and […]

(Beyond Pesticides, May 31, 2018) Deforestation in tropical regions helps spread malaria, concludes a recent research study of the Amazon Rainforest. Published in Nature’s open-access journal, Scientific Reports, the study details researchers’ work, from 2009–2015, comparing patterns of deforestation to rates of malaria in nine states in the Brazilian rainforest. Investigators found that the highest malaria incidence concentrated in impacted patches of forest — areas deforested or otherwise degraded from an unmanaged or more-natural state. These medium-sized patches (from .1 to 5 sq. km. in size) seem to be the “sweet spots” at which wood extraction activity (logging, charcoal production, et al.) correlate most strongly with malarial infection rates. The researchers suggest that the finding is perhaps related to the habitat preferences of the primary malaria vector in the region, Anopheles (Nyssorhynchus) darlingi, which breed most happily in shady, watery, edges of forest habitat. Sixty of the 380 mosquitoes in the genus Anopheles can transmit the malaria parasites. Deforestation fragments the forest landscape, creating more forest “edges,” which means more places for mosquitoes to breed. This fragmentation may also help malaria-carrying mosquitoes spread to other areas as adults: “The new [fragmented] landscape delineated by the pattern of deforestation and soil occupation may favor […]

(Beyond Pesticides, May 25, 2018) The results of a pilot study conducted by an international team of researchers finds that exposure to the herbicide glyphosate results in adverse health effects at levels below those regulators deem “safe” or acceptable. These results represent the first phase of a Global Glyphosate Study based at the Ramazzini Institute in Bologna, Italy, in coordination with the University of Bologna, the Italian National Institute of Health, George Washington University, and the Icahn School of Medicine at Mount Sinai, NY. Researchers are aiming to provide a truly independent, comprehensive evaluation of the risks posed by glyphosate-based herbicides. The pilot study, available now on the research team’s website and later this month in the journal Environmental Health, focused on generating data on how glyphosate effects early-life stages of development. A three-month study on rats, used as a surrogate for human development until 18, exposed the animals to both technical grade glyphosate and the formulated herbicide Roundup. Rats ingested 1.75 miligrams of glyphosate or Roundup per kilogram of body weight each day from the womb until 13 weeks after weening. This is the chronic reference dose used by the U.S. Environmental Protection Agency, and an exposure rate at which the […]