(Beyond Pesticides, November 12, 2015) The U.S. Geological Survey (USGS) recently performed the first-ever study of pesticide residues on native bee populations and found that they are exposed to neonicotinoid insecticides, as well as other pesticides, at significant rates. This study digs deeper into a question  that was previously considered by a researcher who  studied chemical-intensive  apple orchards and linked a steep decline in wild or native bees to the application of pesticides. The USGS study  broadens understanding about the effects of toxic pesticides to native bee species, expanding field research that has principally focused on managed honey bee populations. The study tested for 122 different pesticides including bifenthrin, atrazine and chlorpyrifos, a chemical for which the U.S. Environmental Protection Agency (EPA) recently proposed to revoke all food tolerances in response to  a court-ordered deadline. According to study findings, 72% of bees tested positive for pesticide residues, raising concerns for the potential for unintended pesticides exposures where land uses overlap or are in proximity to one another.   Residues of pesticides found in bees in the study include  thiamethoxam, clothianidin, and imidacloprid, all of which are highly toxic neonicotinoids, a class of chemicals that have been linked to the global […]

(Beyond Pesticides, November 2, 2015) The Center for Biological Diversity (CBD) submitted a formal notice last week for intent to sue the Environmental Protection Agency (EPA) for approving benzovindiflupyr, a fungicide that is highly toxic to fish and aquatic invertebrates. CBD asserts that EPA recognized that benzovindiflupyr could harm wildlife and critical habitat protected by the Endangered Species Act (ESA), but approved it for use without consulting with expert wildlife agencies as required by the act. This is  not the first time that EPA has approved toxic chemicals without fully understanding the consequences. On August 28, 2015, EPA granted broad approval for use of benzovindiflupyr on most crops, including cereals, corn, vegetables, fruits, turf grass and ornamentals. The agency’s own data show that benzovindiflupyr is highly persistent in the environment and will build up in waterways due to runoff from treated fields. Nonetheless, EPA approved benzovindiflupyr for immediate use. “This pesticide is highly poisonous to fish and other wildlife, but the EPA approved it anyway,” said Stephanie Parent, senior attorney at the Center for Biological Diversity, in their press release. “This agency’s cavalier approach to approving new toxic chemicals without required consultation or studies must end. The EPA’s indifference is […]

(Beyond Pesticides, October 28, 2015) On the heels of a recent federal court decision that rejected the U.S. registration of sulfoxaflor, which cited inadequate and flawed review of the science on the chemical’s toxicity to bees, European beekeepers filed complaint that that asks the European Court of Justice to take the same action. The complaint  asks the court to cancel sulfoxaflor’s authorization. Sulfoxaflor is a neonicotinoid-like chemical that, like neonicotinoids, is highly toxic to bees. Three of the most widely used neonicotinoids are currently under a two-year European-wide moratorium which began December 2013, due to concerns about risks to bee populations. European beekeepers, Bee Life European Beekeeping Coordination, the Italian National Beekeeping Union (UNAAPI), and PAN Europe, filed the complaint which cites a published  negative opinion on Dow AgroScience’s sulfoxaflor by the European Food Safety Authority (EFSA). According to EFSA, the pesticide is categorized as ”˜highly toxic to bees’ and it identified crucial toxicity data gaps, which according to the beekeepers, makes a proper risk assessment for bees impossible. Despite these facts, the European Commission’s Directorate-General for Health and Food Safety (DG Sante) and the EU member states authorized sulfoxaflor in July 2015, completely bypassing the pesticide regulation, the complaint […]

(Beyond Pesticides, October 27, 2015) Late Friday,  a coalition of public health, conservation and food safety groups filed their opening brief in the ongoing legal challenge to the U.S. Environmental Protection Agency’s (EPA) approval of the herbicide Enlist Duo for use on genetically engineered corn and soybeans. Enlist Duo, a blend of glyphosate and 2,4-D, was approved on October 15 for use on genetically engineered (GE) crops, despite concerns for human and environmental contamination. The challenge was originally brought in November 2014, shortly after the EPA approved the controversial herbicide for 6 Midwest states. Since then, EPA has expanded its approval to a total of 15 states, with more expected. Counsel from the Center for Food Safety (CFS) and Earthjustice are jointly representing Beyond Pesticides, Center for Biological Diversity, CFS, the Environmental Working Group, the National Family Farm Coalition, and Pesticide Action Network North America. “The Enlist Duo approval violated the laws protecting our communities, land, and farms,” said George Kimbrell, Center for Food Safety senior attorney, counsel in the case. “Regulators bowed to the chemical industry, but we are committed to holding them accountable.” The groups argue that in its approval of Enlist Duo, a combination of the herbicides […]

(Beyond Pesticides, October 26, 2015) Last week, Pop Weaver, the second largest popcorn supplier in the country, released an official statement on its commitment to “removing 50 percent of its neonicotinoid usage in 2016, 75 percent in 2017, with a long-term commitment of further reducing usage by working with agricultural universities and those companies supplying neonicotinoids to the seed industry.” Widely-used neonicotinoids (neonics), which as systemic chemicals move through a plant’s vascular system and express poison through pollen, nectar, and guttation droplets, have been identified in multiple  peer-reviewed studies  and by beekeepers  as the major contributing factor in bee decline. This commitment is a response to a campaign led by Center for Food Safety (CFS), which asked citizens to sign a petition asking Pop Weaver, and other large popcorn suppliers, to protect bees and other pollinators by phasing out the use of neonicotinoid-coated corn seed. Over 37,000 people have signed their petition. Americans eat, on average, 17.3 billion quarts of popcorn each year; each American eats about 68 quarts. According to CFS, there are roughly 40 insecticides currently registered for use as an active chemical on popcorn, including 3 bee-toxic neonicotinoid chemicals: clothianidin, thiamethoxam, and imidacloprid. Between  79 and 100 […]

(Beyond Pesticides, October 22, 2015) With increasing consumer concern about genetically engineered (GE) food, yesterday  the U.S. Senate Committee on Agriculture, Nutrition, and Forestry held a hearing,  entitled Agriculture Biotechnology: a Look at Federal Regulation and Stakeholder Perspectives, that critics called lopsided. Most witnesses characterized GE food as safe or side-stepped the issue of safety, as government witnesses refused to distinguish GE from conventional food and opposed food labeling. “This is the first time in 10 years we’ve had a hearing on biotech. I guess we’re a little late, but we’re here,” said chair of the committee, Senator Pat Roberts (R-KS). The ranking  minority member of the committee, Senator  Debbie Stabenow (D-MI)  said,  “Biotechnology is proven to be safe, beneficial, and I believe will play a major role in helping to solve these dual global challenges of climate change and global food security,” Central to the hearing is the the issue of labeling food products containing GE crops. Senator Stabenow called for the adoption of legislation on GE food labeling, presumably with language that will preempt the authority of states to adopt more stringent labeling standards. Senator Stabenow said that she wants labeling that “doesn’t stigmatize biotechnology.” The GE food […]

(Beyond Pesticides, October 19, 2015) Monsanto, the major producer of Roundup (glyphosate), has found itself in hot water recently, as personal injury lawsuits pile up over the link between glyphosate exposure and non-Hodgkin’s Lymphoma (NHL). Personal injury law firms around the U.S. have found a multitude of plaintiffs and are preparing for what could be a “mass tort” action against Monsanto for knowingly misinforming the public and farmworkers about the dangers of the chemical. The latest lawsuit was filed October 14 in Delaware Superior Court by three law firms representing three plaintiffs. One plaintiff in the Delaware lawsuit, Joselin Barrera, 24, a child of migrant farmworkers, relates  her non-Hodgkin lymphoma (NHL) to glyphosate exposure. Elias de la Garza, a former migrant farm worker and landscaper diagnosed with NHL, has a similar claim. These follow other lawsuits filed last month in New York and California that  accuse Monsanto of knowing that glyphosate was hazardous to human health. Monsanto “led a prolonged campaign of misinformation to convince government agencies, farmers and the general population that Roundup was safe,” the lawsuit states. Glyphosate is touted as a “low toxicity” chemical and “safer” than other chemicals by the Environmental Protection Agency (EPA) and industry […]

(Beyond Pesticides, October 13, 2015) Nineteen  European Union (EU) member states (Austria, Belgium (Wallonia), Bulgaria, Croatia, Cyprus, Denmark, France, Germany, Greece, Hungary, Italy, Latvia, Lithuania, Luxembourg, Malta, The Netherlands, Poland, Solvenia, Scotland, Northern Ireland, and Wales) have opted out of approving GE cultivation except for research purposes. In the past, the EU has not been particularly fond of GE crops; currently, only one GE crop, insect resistant maize MON 810, has been approved for cultivation. In March, the EU passed a new directive that allowed GE crops to be approved for use Union-wide. Along with the Treaty on the Functioning of the EU (TFEU), that directive also gave member states the ability to “adopt legally binding acts restricting or prohibiting the cultivation of GMOs in their territory after such GMOs have been authorized to be placed on the Union market.” Once the opt-out applications have been processed and transmitted to the companies, they have one month to take action; that is, the companies most affected by the ban will have the chance to oppose it. Member states have cited environmental and agricultural issues as a reason for opting out and while biotechnology companies can deny them, it is likely that […]

(Beyond Pesticides, September 25, 2015) Neonicotinoid-treated seeds do not reduce crop damage from pests, adding to a growing body of evidence questioning the benefits of using these bee-toxic insecticides, according to a study  published in the journal BioOne. Widely-used neonicotinoids (neonics), which as systemic chemicals move through a plant’s vascular system and express poison through pollen, nectar, and guttation droplets, have been identified in multiple  peer-reviewed studies and by beekeepers  as the major contributing factor in bee decline. The study,  titled Impact of Western Bean Cutworm (Lepidoptera: Noctuidae) Infestation and Insecticide Treatments on Damage and Marketable Yield of Michigan Dry Beans, examines the relationship between western bean cutworm infestation and damage in dry beans, and the use of seeds treated with the neonicotinoid thiamethoxam, as well as soil treated with aldicarb, another systemic insecticide. Researchers have concluded that neither thiamethoxam nor aldicarb reduced cutworm damage. In fact, plots treated with these insecticides had a higher percentage of defects due to feeding by pests when compared to untreated plots, which researchers believed is  attributable to factors such as fewer natural enemies. There have been additional reports and studies published over the past few years questioning the benefits of neonic use. In […]

(Beyond Pesticides, September 18, 2015) Glyphosate’s harmful effects continue to accumulate, this time with evidence pointing to toxic and sublethal effects on bees. According to a new study conducted by German and Argentinian researchers, honey bees exposed to low levels of glyphosate have a hard time returning home. Glyphosate, the  controversial and toxic active ingredient in Monsanto’s Roundup, is an herbicide widely used on genetically-engineered (GE) crops as well as on parks and golf courses, for control of weeds and grasses. Along with neonicotinoids, which have been linked to worldwide bee decline by a growing body of science, glyphosate is just another chemical in the toxic mixture that bees and other non-target organisms are constantly exposed to in the environment. In the study, titled “Effects of sublethal doses of glyphosate on honeybee navigation” and published in the Journal of Experimental Biology, researchers evaluate the effects of recommended concentrations of glyphosate used in agricultural settings on honey bee navigation and found that a single exposure to a concentration of glyphosate within this range delays the return of the foraging honey bee to the hive. Flight trajectories were also affected after successive exposure to the herbicide, suggesting that the spatial learning process […]

(Beyond Pesticides, September 11, 2015) On Thursday, the Ninth Circuit Court of Appeals unequivocally rejected the U.S. Environmental Protection Agency’s (EPA) unconditional registration of the systemic and bee-toxic pesticide sulfoxaflor. The Court concluded that EPA violated federal law and its own regulations when it approved sulfoxaflor without reliable studies regarding the impact that the insecticide would have on honey bee colonies. The Court vacated EPA’s unconditional registration of the chemical, meaning that sulfoxaflor may no longer be used in the U.S. However, while the decision is good news for now, it still leaves the door open for sulfoxaflor’s future use once EPA obtains the necessary information regarding impacts to honey bees and re-approves the insecticide in accordance with law. The case is Pollinator Stewardship Council, American Honey Producers Association, National Honey Bee Advisory Board, American Beekeeping Federation, Thomas Smith, Bret Adee, Jeff Anderson v. U.S. EPA (9th Circuit U.S. Court of Appeals,  No. 13-7234). Dow AgroSciences (a Dow Chemical company)  joined  the case as an intervenor to support EPA. EPA initially proposed to conditionally register sulfoxaflor and requested additional studies to address gaps in the data regarding the pesticide’s effects on bees. A few months later, however, EPA unconditionally registered […]

(Beyond Pesticides, September 10, 2015) Last week, California Environmental Protection Agency’s Office of Environmental Health Hazard Assessment (OEHHA) announced that it intended to list glyphosate (Roundup) and three other chemicals as cancer-causing chemicals under California’s  Safe Drinking Water and Toxic Enforcement Act of 1986 (Proposition 65). Glyphosate  is a phosphanoglycine herbicide that inhibits an enzyme essential to plant growth. Under California law, Proposition 65 requires that certain substances identified by the International View postAgency for Research on Cancer (IARC) be listed as known cancer-causing chemicals. In March, a study by the IARC classified glyphosate as a Group 2A material, which means that the chemical is carcinogenic based on sufficient evidence of carcinogenicity in experimental animals. The agency considered the findings from an EPA Scientific Advisory Panel report, along with several recent studies in making its conclusion. However, industry supporters of glyphosate all over the globe are conducting their own studies to attempt to prove that it is not a carcinogen. These studies, like one by German Federal Institute for Risk Assessments (BfR), are based almost solely on industry science and classified industry reports, each of which might not consider critical variables. With more glyphosate-focused studies being released, the growing evidence […]

(Beyond Pesticides, September 2, 2015) Germany intends to “opt out” of the cultivation of genetically engineered (GE) crops under new European Union (EU) rules regarding GE approvals, moving Germany one step forward to prohibiting GE crops. EU member states have until October 3, 2015 to inform the European Commission whether they wish to opt out of the new EU GE cultivation approvals. GE crops, which have divided Europe regarding their safety, remain a hot button issue across the continent. Meanwhile, in the U.S., the Department of Agriculture (USDA) granted nonregulated status to the “Innate” potato, approving yet other GE crop for U.S. agriculture that has insufficient testing and no labeling. According to Reuters, a new EU law approved in March 2015 clarifies the process for approving new GE crops after years of previous deadlock. Now this new law gives individual EU countries more flexibility over the cultivation of GE crops and the right to opt out by prohibiting GE crops even after they have been approved by the European Commission. Previously, EU-approved GE crops had to be permitted in all EU states. In a letter obtained by Reuters, the German Agriculture Minister Christian Schmidt has informed German state governments of […]

(Beyond Pesticides, August 28, 2015) The European Union’s food safety agency confirmed Wednesday that foliar spraying of neonicotinoids (neonics), the widely-used bee-toxic insecticides, poses a risk to bees, bolstering previous research that led to a two-year moratorium on the chemicals in the EU. The European Food Safety Authority (EFSA), which guides EU policymakers, said leaf spray containing three neonicotinoid pesticides — clothianidin, imidacloprid, and thiamethoxam — could harm bees. Previous research found that these chemicals pose a risk as seed treatments or granules, which prompted the European Commission to limit their use in  December 1, 2013. The use of the three neonicotinoid substances in seed or soil treatments is prohibited in the European Union for crops attractive to bees and for cereals other than winter cereals except in greenhouses. “They (the EFSA conclusions) confirm that the Commission was correct to take precautionary measures in 2013,” a Brussels-based EU executive said in a statement. Neonicotinoids have been found by  a growing body of scientific literature  to be linked to honey bee and pollinator decline. Recently, a  study  performed by the Food and Environment Research Agency (FERA) in the United Kingdom provides evidence confirming the link between neonicotinoid pesticides and continually increasing […]

(Beyond Pesticides, August 27, 2015) Last week, Philip J. Landrigan, M.D., and Charles Benbrook, Ph.D., released a perspective article, GMOs, Herbicides, and Public Health, in the New England Journal of Medicine  that outlines  the hazards associated with food residues of  elevated pesticide use in the production  of genetically engineered (GE) crops. While mainstream media continuously misses the central issue  in the GE debate by asserting that these crops are merely an extension of selective breeding and effect a reduction in pesticide use, the authors  focus on  the significance of the actual increase in herbicide use and weed resistance in herbicide-tolerant crops. Drs. Landrigan and Benbrook offer two main recommendations in their article: the U.S. Environmental Protection Agency (EPA) should delay implementation of its decision to permit the use of Enlist Duo (the 2,4-D herbicide used with  Monsanto-engineered GE herbicide-tolerant  crop), and  the U.S. Food and Drug Administration (FDA) should  require labeling of GE foods and couple it with adequately funded, long-term postmarketing surveillance. Dr. Landrigan, Dean for Global Health at Mount Sinai School of Medicine, is an epidemiologist and pediatrician and one of the world’s leading advocates of children’s and environmental health. Dr. Benbrook is a research professor at the […]

(Beyond Pesticides, August 26, 2015) A  study performed by the Food and Environment Research Agency (FERA) in the United Kingdom (UK) provides evidence of confirming the link between neonicotinoid pesticides and continually increasing honey bee colony losses on a landscape level. The study, Evidence for pollinator cost and farming benefits of neonicotinoid seed coatings on oilseed rape, was published in the Nature journal Scientific Reports. This is a significant study, as the UK government has always maintained that neonicotinoid pesticides do not threaten bees, and that honey bee losses are instead caused by the parasitic varroa mite, siding with industry arguments that pesticides are safe when used properly. However, this new study indicates otherwise, confirming a direct link between neonicotinoids and honey bee colony losses at a nationwide level. This study distinguishes itself from  a previous study in the U.S. that extrapolated real world neonicotinoid exposure levels  to  test hives by analyzing actual fields in a  long-term assessment. To a large degree, the new study addresses industry critics of the earlier study design who have tried to discount previous findings of bee decline associated with neonicotinoid use (see Beyond Pesticides’ Sowing the Seeds of Doubt, which addresses these industry myths). […]

(Beyond Pesticides, August 18, 2015) Research looking at corn production  across the Northern Great Plains finds that fields with lower insect biodiversity are at greater risk for pest problems, showing that insect diversity can reduce the need for pesticides, yet again highlighting the critical need for biodiversity in a resilient and sustainable food production system. The research article, Trading Biodiversity for Pest Problems, is published in the July 31 issue of Science Advances, and explores how current chemical-intensive  practices have resulted in altered pesticide use patterns, land use intensification, and landscape simplification, all of which threaten biodiversity in and near farms. The findings suggest that farming practices that promote insect biodiversity is  an effective way to control pests without the use of harmful pesticides. Scientists Jonathan Lundgren, PhD, an entomologist at the U.S. Department of Agriculture—Agricultural Research Service (USDA-ARS), and Scott Fausti, PhD, an economics professor at South Dakota State University looked at insect diversity in cornfields on 53 different eastern South Dakota farms. The researchers evaluate fields that do not use insecticides or crops that are genetically engineered (GE), which may  influence corn insect communities. They also specifically identify insect species during the time in the corn’s life cycle […]

(Beyond Pesticides, July 30, 2015) Despite concerns for human and environmental contamination, the U.S. Department of Agriculture (USDA) adds 2,4-D-tolerant cotton, a genetically engineered (GE) crop, to the list of unregulated GE crops, joining 2,4-D resistant corn and soybeans. Last week, the Animal and Plant Health Inspection Service (APHIS) division of USDA released its decision on Dow AgroSciences’ petition to deregulate the 2,4-D resistant GE cotton. The decision was signed off by Michael J. Firko, the Deputy Administrator of Biotechnology Regulatory Services. In September of last year, Deputy Firko also signed the determination paperwork that deregulated GE corn and soybean. The deregulation essentially releases the GE organism from the regulatory requirements of 7 CFR part 340 or the plant pest provisions of the Plant Protection Act. Dow’s GE cotton, part of the Enlist Weed Control System, is resistant to 2,4-D choline, glufosinate, and glyphosate. Growers in the cotton industry have been vying for the GE cotton to enter the market in order to combat herbicide-resistant weeds due to the broad scale use of Monsanto’s RoundUp (glyphosate), which continues to fail across the agricultural industry due to weed resistance. Glyphosate is a phosphanoglycine herbicide that inhibits an enzyme essential to plant […]

(Beyond Pesticides, July 24, 2015) An emergency application was approved by the UK Department for Environment, Food, and Rural Affairs (DEFRA) on Wednesday that allows  farmers to use neonicotinoid seed treatment on 5 percent of oilseed rape crop (known as canola in the U.S.) this summer to control a flea beetle infestation. The emergency use, which has been granted for 120 days, allows growers to use Bayer CropScience’s Modesto (clothianidin) and Syngenta’s Cruiser OSR (thiamethoxam). The active ingredients of these products belong to a class of toxic chemicals knowns as neonicotinoids, which have been linked to pollinator decline. The request was the second one for the National Farmers Union (NFU) after the first request for a nationwide lifting of the two-year moratorium on neonicotinoid use was rejected. The NFU said it was “frustrated” at having to put in an application for a smaller area. There have been numerous attempts to shroud the application process in secrecy. DEFRA told its expert committee on pesticides (ECP) to halt its  normal practice of publishing the minutes  of meetings at which the neonicotinoid applications were discussed, in order to avoid “provoking representations from different interest groups.” Additionally, according to the Guardian, the UK government […]

(Beyond Pesticides, July 22, 2015) Months after the World Health Organization (WHO) formally associated the world’s most widely used herbicide  -glyphosate (Roundup)- with cancer, one of the world’s leading experts on cancer risk, and co-author of the WHO’s report, Christopher Portier, PhD, told a scientific briefing in London that the herbicide can damage human DNA, which could result in increased cancer risks. This finding comes on the heels of a call by the Soil Association for a United Kingdom (UK) ban on the use of glyphosate after finding residues of the chemical in bread. Earlier this spring, the WHO’s International Agency for Research on Cancer (IARC) classified glyphosate as Group 2a “probable” human carcinogen based on sufficient evidence of carcinogenicity in laboratory animals. Since then industry has hit back defending its champion product, even attempting to undercut the WHO’s findings with an industry-based  assessment that reached the opposite conclusion, based on classified industry reports.  Now an internationally recognized scientist, Dr.  Portier, former associate director, National Institute of Environmental Health Sciences, (NIEHS) and director of the Office of Risk Assessment Research at NIEHS, reiterated WHO’s findings at the UK Soil Association scientific briefing in Westminster on July 15. During his presentation, […]

(Beyond Pesticides, July 20, 2015) In response to  the recent cancer classification of glyphosate (Roundup)  by the International Agency for Research on Cancer (IARC), the specialized cancer agency of the World Health Organization,  an industry-based  assessment has reached the opposite conclusion based on classified industry reports has concluded that Monsanto’s glyphosate is not carcinogenic.   According to The Guardian, the assessment by the German Federal Institute for Risk Assessments (BfR) is based almost solely on industry science and classified industry reports. Three scientists on Germany’s scientific panel on pesticides work for the pesticide industry. Monsanto objected earlier this year, when IARC announced in a preliminary report that glyphosate is a probable human carcinogen based on laboratory animal studies. BfR and IARC’s findings have been released during a pivotal time, as a decision on whether to extend the license for glyphosate’s use in Europe is currently pending, and these studies are sure to be incorporated into the decision making process. According to The Guardian, the European Food Safety Authority (EFSA) is delaying the release of its  opinion on glyphosate to take the full IARC report into account. The Guardian reports that BfR’s research relied heavily on unpublished reports provided by the […]

(Beyond Pesticides, June 30, 2015) As the Monarch butterfly suffers serious decline, the U.S. Environmental Protection Agency (EPA) is considering  the role of  herbicides in killing the iconic species’ food source, milkweed, and developing an action plan that may fall short. The agency identified possible action that it may take to slow the Monarchs’ decline in a document released last week entitled Risk Management Approach to Identifying Options for Protecting the Monarch Butterfly (Monarch Approach document). EPA’s approach to Monarch conservation comes shortly after the White House released its National Pollinator Health Strategy, intended to “reverse pollinator losses and help restore populations to healthy levels.” The U.S. Fish and Wildlife Service is also in the midst of conducting a review of the Monarch butterfly to determine whether the species is eligible for protection under the Endangered Species Act. The number of Monarchs reaching their winter breeding grounds in Mexico has fallen by 90% in less than 20 years. This year’s population was the second lowest since surveys began two decades ago. The critical driver of this decline has been linked to the loss of milkweed, the only plant on which Monarchs will lay their eggs, along their migration route, which […]

(Beyond Pesticides, June 19, 2015) A new study directly links exposure to dichlorodiphenyltrichloroethane (DDT) in utero to the development of breast cancer later in life. Published in the Journal of Clinical Endocrinology and Metabolism, the study looked at data that were taken from a California program that  evaluated  samples from women during 1960s, when DDT use was popular. DDT is known to be an endocrine disruptor, and is linked to serious health effects. Although DDT has been banned for many years, residues still linger in certain areas of the U.S. and continue to cause environmental and health hazards. The recent study, titled DDT Exposure in Utero and Breast Cancer,  focuses on 118 mothers who were members of Kaiser Foundation Health Plan from 1959-1967 and had daughters that were diagnosed with breast cancer by their 50s. Stored blood samples from these mothers gave researchers an idea of how much DDT they were exposed to during pregnancy or soon after giving birth. They found that elevated levels of DDT in the mother’s blood led to a four-fold increase in the daughter’s risk of developing breast cancer. Among those with cancer, 83% had a form of cancer called estrogen positive breast cancer, which […]