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Daily News Blog

Archive for the 'Atrazine' Category


25
Aug

Harmful Pollutants in Minnesota Waterways Highlights the Continuing Issue of Water Source Contamination

(Beyond Pesticides, August 22, 2023) A U.S. Geological Survey (USGS) and National Park Service collaborative survey report finds a harmful mixture of pollutants, including pesticides, pharmaceuticals, caffeine, methylparaben, algal toxins, and fecal and parasitic bacteria, in Pipestone Creek at Pipestone National Monument in Minnesota, U.S.— adding to evidence of widespread pesticide contamination in waterways across the U.S. Pesticide contamination in waterways is historically commonplace. A 1998 USGS analysis revealed pesticides are commonly found in all U.S. waterways, with at least one pesticide detectable. Thousands of tons of pesticides enter rivers and streams around the US from agricultural and nonagricultural sources, which contaminate essential drinking water sources, such as surface water and groundwater. As the number of pesticides in waterways increases, it has detrimental impacts on aquatic ecosystem health, especially as some pesticides work synergistically with others to increase the severity of the effect. Reports like these are significant tools for determining appropriate regulatory action to protect human, animal, and environmental health.  The survey collected water samples from Pipestone Creek, the pipestone quarries, and Winnewissa Falls, all of which are on the U.S. Environmental Protection Agency’s (EPA) list of impaired waters for turbidity (reduced water clarity) and fecal coliform bacteria (E. coli). Turbidity and fecal coliform […]

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30
Mar

Research Further Associates Widespread Atrazine Exposure to Breast Cancer

(Beyond Pesticides, March 30, 2023) A study published in Ecotoxicology and Environmental Safety finds that the commonly used herbicide, atrazine, promotes breast cancer development through suppression of immune cell stimulation, and thus function, and upregulation of enzymes mediating tumor development. According to the Centers for Disease Control and Prevention (CDC), breast cancer is a disease that causes breast cells to grow out of control, with the type of breast cancer depending on the cells themselves. Several studies and reports, including U.S. Environmental Protection Agency (EPA) data, identify hundreds of chemicals as influential factors associated with breast cancer risk. Breast cancer is the most common cancer among women, causing the second most cancer-related deaths in the United States. Past studies suggest genetic inheritance factors influence breast cancer occurrence. However, genetic factors only play a minor role in the incidence of breast cancer, while exposure to external environmental factors (i.e., chemical exposure) appears to play a more notable role. One in ten women will receive a breast cancer diagnosis, and genetics can only account for five to ten percent of cases. There are grave concerns over exposure to endocrine (hormone) disrupting chemicals and pollutants that cause adverse health effects. Therefore, advocates point to the need for national […]

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14
Feb

Harming Wildlife, Pesticides in Waterways Run into the Great Lakes Year-Round

(Beyond Pesticides, February 14, 2023) The waterways that flow into the Great Lakes are experiencing year-round pesticide contamination that exceeds benchmarks meant to protect aquatic life, according to research published in Environmental Toxicology and Chemistry by scientists at the U.S. Geological Survey (USGS). “What you use makes it into the water,” study coauthor Sam Oliver, PhD, told the Milwaukee Journal Sentinel. These data buttress growing calls from pesticide reform advocates that new laws are needed to protect the nation’s increasingly threatened waters. USGS scientists conducted their analysis on 16 tributaries that feed into the Great Lakes, including sites that correspond to urban, agricultural, and undeveloped land. Samples were taken at locations closest to the lake the tributary flowed into over a period of roughly one year from October 2015 to September 2016. Each sample was tested for 231 pesticides and their breakdown products. Researchers used aquatic life benchmarks set by the U.S. Environmental Protection Agency (EPA), and created a relative hazard index (RHI) for the study to evaluate whether specific sites should be prioritized for further protections.   Across every sampled tributary, pesticides were found. Accordingly, 96% (190 out of 198) of samples taken contained pesticides or their breakdown products. […]

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21
Nov

EPA’s Deficient Pesticide Analysis Contributes to Ecological Decline

(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 […]

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01
Mar

Pesticide Use on Crops for Meat and Dairy Feed Further Threatens Endangered Species

(Beyond Pesticides, March 1, 2022) A report by the Independent finds chemical-intensive farming of crops for animal feed puts thousands of endangered species at risk. U.S. farmlands use more than 235 million pounds of pesticide (i.e., herbicides and insecticides) solely for animal feed production, many of which are highly hazardous pesticides (HHPs). Several HHP hazard categories include acutely toxic, chronic health hazards, and environmental hazards. Therefore, animal feed production intensifies global pollution, increases pesticide exposure, and degrades human, animal, and ecological health.  Although the report demonstrates a need to eliminate toxic pesticide use for the sake of human, animal, and ecosystem health, it will take more than eliminating the worst chemicals to address the impending biodiversity collapse and the climate crisis. Experts highlight the need for an urgent shift to organic land and agricultural management practices. The study notes, “These pesticides are taking a toll on our environment and biodiversity. Endangered species like the highly imperiled whooping crane, monarch butterflies, all species of salmon, the rusty-patched bumble bee, the San Joaquin kit fox, and the northern long-eared bat, as examples, all face significant threats from industrial agricultural operations and the chemicals applied. In order to conserve biodiversity and better protect vulnerable species and their habitats, […]

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04
Jan

“Silence of the Clams”—Study Highlights the Threat of Multiple Pesticide Stressors to Bivalves

(Beyond Pesticides, January 4, 2021) Chronic exposure to pesticides used in conventional forestry operations runoff and harm soft shell clams, according to a recent study published in Science of the Total Environment, entitled “The silence of the clams: Forestry registered pesticides as multiple stressors on soft-shell clams.” Rather than focusing on the impact of a single chemical, researchers analyzed the combined effects of several pesticides. “This is an important data gap to fill as research on these compounds’ toxicity typically focuses on individual compound effects at high concentrations to determine lethality, which while necessary for understanding compound toxicity, can miss sublethal effects that can have long term impacts on these systems,” said lead author Allie Tissot of Portland State University. The soft shell clam, Mya arenaria, is found to be widespread in coastal areas in both the western and eastern U.S., and is often eaten in stews or chowders. A recent study found a range of chemical contaminants detected in Oregon populations of these species, prompting researchers to further investigate the impact of these exposures. An experiment was set up with tanks to mimic a seabed, and eight different groups of 11 clams were established and treated with various amount […]

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03
Dec

Degenerative Lung Diseases Associated with Atrazine Exposure, Worsened in Combination with Common Cancer Treatment

(Beyond Pesticides, December 2, 2021) A study published in Cellular Physiology and Biochemistry finds atrazine (ATR) exposure worsens lung disease outcomes in individuals with idiopathic (spontaneous) pulmonary fibrosis (IPF), a group of incurable lung diseases involving damaged/scarred lung tissue. Furthermore, chemotherapeutic products used to treat lymphoma (immune system cell cancer) like bleomycin can induce pulmonary fibrosis complications exacerbated by pesticide exposure. However, pesticide-related pulmonary fibrosis can have implications for neurological health, such as motor function. Scientific literature already finds an association between pesticide exposure and respiratory illnesses such as asthma, lung cancer, and chronic obstructive pulmonary disease (chronic bronchitis). Although IPF impacts over 5 million people a year globally, the disease is difficult to predict, which is concerning as the death rate is 50 to 56 percent within the first few years. Therefore, studies like this highlight the significance of evaluating how pesticide exposure impacts respiratory function, especially when exposure to respiratory toxicants increases vulnerability to existing respiratory-fixated illnesses like Covid-19. Advocate have urged the U.S. Environmental Protection (EPA) to incorporate scientific findings that these—where chemical exposures exacerbate an existing medical condition—into its pesticide registration review program. Researchers note, “[O]ur data represent an addition to the complex information on ATR-induced pulmonary toxicity. In particular, in this […]

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28
Jun

Take Action: Tell EPA to Ban ALL Triazine Herbicides

(Beyond Pesticides, June 28, 2021) The endocrine disrupting herbicide propazine (in the triazine family of frog-deforming endocrine disruptors) is set for cancellation by the U.S. Environmental Protection Agency (EPA). The move would eliminate use of the hazardous herbicide by the end of 2022. However, all pesticides in the triazine class, including atrazine and simazine, have similar properties and should be eliminated from use. Tell EPA to finish the job by banning all triazines. In November 2020, Beyond Pesticides and allied environmental groups launched a lawsuit against EPA for its intent to reregister the triazine family of chemicals. The agency’s interim approval of the herbicides, conducted under the Trump administration, eliminates important safeguards for children’s health and a monitoring programs intended to protect groundwater from contamination. As is typical with EPA, the agency merely proposed minor label changes in attempts to mitigate risks identified in its registration review. According to a release from EPA, it made the decision not out of concerns relating to human health and environmental protection, but in order to provide “regulatory certainty” for farmers and local officials. In March 2021, the Biden administration requested a stay on the atrazine lawsuit brought by environmental groups, as it indicated […]

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11
Mar

Ecosystem Health: Pesticide Use from Forest Management Practices Threatens Essential West Coast Marine Organisms

(Beyond Pesticides, March 11, 2021) A Portland State University (PSU) study finds that pesticides from the forestry industry threaten clams, mussels, oysters (bivalves) along the Oregon state coast. Bivalves are excellent indicator species, signaling environmental contamination through their sedimentary, filter-feeding diet. However, continuous pesticide inputs—from various forestry management regimes—into watersheds along Oregon’s coastal zone endanger these species in downstream rivers and estuaries (river mouths). Although research demonstrates many forestry practices (e.g.., road building, planting, clearcutting, thinning) have cumulative effects on the ecosystem, there is a lack of studies addressing the overall impact of multiple chemical mixtures and application on watersheds and subsequent aquatic transport. Like agriculture, conventional forest management across the U.S. depends on the use of toxic pesticides to control pest populations. However, pesticide residues from application drift, runoff, and contamination continuously jeopardize the health and fitness of various non-target species, including humans. Marine ecosystem pollution is difficult to track and measure, and forestry pesticide regulations can invoke variations in water quality requirements through discrepancies in buffer zones and application concentrations. Therefore, studies like this can help guide future forest management practices to reduce the number of chemicals entering aquatic ecosystems. Researchers in the study note, “These findings highlight the need to […]

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11
Jan

TAKE ACTION: Tell President-Elect Biden and Congress to Clean Up at EPA— End the Era of Corporate Deception

(Beyond Pesticides, January 11, 2021) Treatment of chemical companies as clients rather than regulated entities is not new at the Environmental Protection Agency (EPA), but corruption reached new highs during the Trump administration. With a new administration, it is time to end the rule of corporate deception at EPA. This goes beyond the use of the Congressional Review Act to reverse individual rules (adopted in the last six months) that defy scientific findings and compliance with environmental and public health standards. We can no longer rely on bad science and unscrupulous chemical manufacturers that put profits above concerns for the health of people and the environment. EPA must audit pesticide registrants for integrity to scientific process and set a moratorium on future pesticide registration until the agency can assure the public that their science is not corrupt, as it has been in the past. Tell President-elect Biden and Congress to clean up the corruption of science at EPA and set a moratorium on future pesticide registrations—until the agency can assure the public that the chemical manufacturers’ science supporting pesticide registrations is not corrupt. The Midwest Center for Investigative Reporting published a story in early December on yet another example of the […]

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18
Dec

Investigation on Weed Killer Dicamba Adds to Pattern of Corporate Deception on Pesticide Hazards

(Beyond Pesticides, December 18, 2020) The Midwest Center for Investigative Reporting published a story in early December on yet another example of the corporate malfeasance that exalts profit far above concerns for safety, health, and ecosystems. The Midwest Center’s investigation finds that Monsanto and BASF, makers of the extremely problematic herbicide dicamba, engaged in a variety of deceitful, unethical, and possibly fraudulent practices to enable its use. The bottom line is that the companies knew, before they released dicamba, about the massive damage it would cause — and then put it on the market. Beyond Pesticides has reported on the corporate greed that fuels the downstream public health, environmental, and economic devastation these pesticides cause, and advocated for their removal from the market. Such unscrupulous behavior is not confined to these companies; Bayer (which now owns Monsanto) and Syngenta are also implicated in similar actions related to other pesticides: glyphosate and atrazine, respectively. Over the course of the past couple of decades, large agrochemical corporations have pursued not only extreme market penetration for their toxic products, but also, vertical integration that, in the case of Bayer/Monsanto, “represents a near-monopoly on the agriculture supply chain.” Corporate ownership of the patent on genetically […]

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06
Nov

Lawsuit Launched Against EPA Approval of Toxic Herbicide Atrazine

(Beyond Pesticides, November 6, 2020) Beyond Pesticides joined health and environmental groups suing the U.S. Environmental Protection Agency (EPA) late last month over its decision to reapprove the endocrine disrupting herbicide atrazine with fewer protections for children’s health. Despite the chemical being banned across much of the world, EPA continues to make decisions that benefit chemical industry executives. “EPA’s failure to remove atrazine represents a dramatic failure of a federal agency charged with safeguarding the health of people, wildlife, and the environment,” said Jay Feldman, executive director of Beyond Pesticides. “We seek to uphold the agency’s duty to act on the science, in the face of viable alternatives to this highly toxic weedkiller.” It is not hyperbole, but in fact scientifically documented, that atrazine exposure “chemically castrates” frogs, impairs fish reproduction, and can result in birth defects and cancer in humans. EPA decision comes on the heels of a rash of industry-friendly decisions. Within the last month, the agency has finalized rules weakening farmworker buffer zone protections, reapproving dicamba use on genetically engineered crops, and reregistering some of the most toxic pesticides on the market. The lawsuit, filed in the Ninth Circuit Court of Appeals, contends that before reapproving atrazine, […]

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22
Sep

EPA Reapproves Toxic Weedkiller Atrazine with Fewer Protections for Children’s Health

(Beyond Pesticides, September 22, 2020) Use of the highly hazardous, endocrine disrupting weed killer atrazine is likely to expand following a decision made earlier this month by the U.S. Environmental Protection Agency (EPA). Under the guise of “regulatory certainty,” the agency is reapproving use of this notorious herbicide, as well as its cousins simazine and propazine in the triazine family of chemicals, with fewer safeguards for public health, particularly young children. Advocates are incensed by the decision and vow to continue to put pressure on the agency. “Use of this extremely dangerous pesticide should be banned, not expanded,” Nathan Donley, PhD, a senior scientist at the Center for Biological Diversity said in a press release. “This disgusting decision directly endangers the health of millions of Americans.” Beyond Pesticides has long argued against the continued use of the triazine herbicides, which includes atrazine. Triazines are well known to interfere with the body’s endocrine, or hormonal system. Disruptions within this delicately balanced process in the body can result in a range of ill health effects, including cancer, reproductive dysfunction, and developmental harm. These weedkillers interfere with the pituitary gland’s release of luteinizing hormones, which regulate the function of female ovaries and male gonads. In comments written by Beyond Pesticides to EPA, the organization notes, “Of the numerous adverse effects associated with this disruption, […]

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19
Aug

Dolphins Stranded Along Eastern Seaboard Are Diseased, Contaminated with Pesticides, Plastics, Disinfectants, and Heavy Metals

(Beyond Pesticides, August 19, 2020) Stranded dolphins and whales along the United States Eastern Seaboard contain herbicides, disinfectants, plastics, and heavy metals, research published in Frontiers of Marine Science finds. The witches brew of toxins is likely contributing to ill health among these ecologically important, intelligent, and charismatic species, and may be playing a role in the occurrence of strandings. “It’s really hard to judge, when an animal strands, if the toxins in the animal were related to why it stranded,” said James Sullivan, PhD, executive director of Harbor Branch Oceanographic Institute in Florida, which participated in the study, to UPI. “But these health problems do stack up. The animal is much more susceptible to succumbing to natural disease and environmental problems, just like humans are more likely to get ill from coronavirus if they have underlying conditions.” Dr. Sullivan’s statement rings true across a range of impacts resulting from chemical exposure or other stressors – while an individual may not be killed outright, weakening that occurs after exposure can significantly affect long term fitness in the wild. Eventually, these effects can add up to significant population declines. Unfortunately, this phenomenon in the natural world is often presented as “mysterious” […]

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12
Aug

Atrazine Found to Harm Marsupial Health

(Beyond Pesticides, August 12, 2020) The herbicide atrazine can interfere with the health and reproduction of marsupials (including kangaroos and opossums) kangaroo, Virginia opossum, according to research published in the journal Reproduction, Fertility, and Development. Although the research focuses on the health of the Australian wallaby, the data is relevant for the only marsupial in the United States, the opossum. Unfortunately, the research is no surprise, as atrazine has a long history of displaying endocrine (hormone) disrupting properties, affecting sex and reproduction in a broad range of species. The study, under the auspices of University of Melbourne Animal Experimentation and Ethics Committee, exposed pregnant female adult wallabies to atrazine through gestation, birth, and lactation. Doses of the weedkiller were slightly higher than real world models, but according to researchers, “It is quite possible a wild animal could get such an exposure.” Researchers then euthanized the newborn wallabies to study atrazine’s effects. The gonads and phallus of young wallabies were analyzed for any physiological changes or impacts to gene expression. Researchers found changes to the gene expression necessary for basic function of the testis, and a significant reduction in phallus length. “These results demonstrate that [atrazine] exposure during gestation and lactation can […]

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07
Aug

28 Pesticides Linked to Mammary Gland Cancer, Inadequately Reviewed by EPA

(Beyond Pesticides, August 7, 2020) Research out of the Silent Spring Institute identifies 28 registered pesticides linked with development of mammary gland tumors in animal studies. Study authors Bethsaida Cardona and Ruthann Rudel also report that many of the pesticides they investigated behave as endocrine disruptors; breast cancers in humans are significantly influenced by hormones generated by the endocrine system. The Environmental Protection Agency (EPA) acknowledges that nine of these 28 pesticide compounds cause mammary tumors, but dismisses the evidence of the other 19. The results of this research, published in the journal Molecular and Cellular Endocrinology, evince Beyond Pesticides’ long-standing argument that the risk assessment process used by EPA for its pesticide registration process is substantially inadequate to protect human health. The co-authors cite, as the catalyst for this research project, a Cape Cod resident’s outreach to the Silent Spring Institute several years ago, asking for information about the herbicide triclopyr because utility companies wanted to spray it on vegetation below local power lines. (The compound has also been used by the logging industry in the Pacific Northwest.) They reviewed more than 400 EPA pesticide documents on the health impacts of many registered pesticides for this research, conducted as part […]

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09
Jul

From Udder to Table: Toxic Pesticides Found in Conventional Milk, Not Organic Milk

(Beyond Pesticides, July 9, 2020) Conventional U.S. milk contains growth hormones, antibiotics, and low to elevated levels of pesticides not found in organic milk, according to a study published in the journal of Public Health Nutrition by Emory University researchers. Milk can bioaccumulate certain organic pollutants, making it a valuable medium to assess what chemical we might be ingesting daily. With milk being one of the most consumed beverages in the U.S., in addition to its use in other popular drinks (i.e., coffee and tea), this study discloses widespread contamination and highlights the need for improved regulation. Researchers in the study note, “To our knowledge, the present study is the first study to compare levels of pesticide in the U.S. milk supply by production method (conventional vs. organic). It is also the first in a decade to measure antibiotic and hormone levels and compare them by milk production type.”  The market for conventional milk, produced in chemical-intensive agriculture, is declining, but the demand for organic milk is increasing due to concerns over chemical contamination in consumer products from pesticides and other toxic chemicals. Although the U.S. Environmental Protection Agency (EPA) sets limits for pesticide residues in food products, the agency […]

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30
Jun

Implications for Human Health: Pesticides and Other Environmental Contaminants Alter Gut Microbiome

(Beyond Pesticides, June 30, 2020) A review of scientific literature on the toxic effect of environmental contaminants—including pesticides—published in the journal Toxicological Science, “The Impact of Environmental Chemicals on the Gut Microbiome,” associates these chemicals to changes in the gut microbiome and other adverse health implications. The review, by researchers at the University of Illinois, looks at how environmental contaminants adversely effects and reinforce chemical disruption of the gut microbiome. It highlights the importance of evaluating how environmental contaminants, like pesticides, impact body regulation by gut microbiota. The study has significant implications for considerations that should be, but are not currently, a part of pesticide review and registration by the U.S. Environmental Protection Agency (EPA). Gut microbiota plays a crucial role in lifelong digestion, immune, and central nervous system regulation, as wells 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. Karen Chiu, Ph.D., a graduate research fellow at the […]

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04
Jun

The Pesticide Atrazine and 200 Other Toxic Chemicals Found in Fracking Wastewater; Contamination Goes Unregulated

  (Beyond Pesticides, June 4, 2020) A new, simultaneous chemical identification method has found the presence of the weed killer atrazine and 200+ other hazardous chemicals in hydraulic fracturing (fracking) wastewater or produced water, according to collaborative research published in the Journal of Separation Science by scientists at the University of Toledo (UToledo) and the University of Texas at Arlington. Although produced water is a waste product of fracking, the U.S. Environmental Protection Agency (EPA) allows many states to reuse produced water in agriculture and other industries or dispose of it into waterways. There is serious concern about the safety of produced water and it being a widespread source of pollution. Current disposal and purification practices do not guarantee environmental pollutant’s removal from produced water. This research, “Optimization of thin film solid phase microextraction and data deconvolution methods for accurate characterization of organic compounds in produced water,” highlights the need for comprehensive chemical composition assessment of produced water, whether for reuse or disposal. Currently, EPA waives requirements that chemical companies (e.g., Syngenta in the case of atrazine) monitor for the presence of pesticides in waterways, endangering public health of the environment. Because produced water, whether treated or not, is typically not void of toxic […]

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06
May

Trump EPA Waives Requirement to Monitor Waterways for Hazardous Weedkiller

(Beyond Pesticides, May 6, 2020) The Trump Administration announced late last month that it is waiving a requirement that multinational chemical company Syngenta-Chemchina continue to monitor Midwest waterways for the presence of the weedkiller atrazine throughout 2020. While rationalized by the Administration as “due to the unanticipated impact of Covid-19,” the move will instead put residents health at increased risk. Atrazine is one of 78 pesticides that has been linked to the development of respiratory ailments like wheeze. “The public will now have no idea whether dangerous levels of atrazine are reaching rivers and streams throughout the Midwest. That’s absurd and reckless,” said Nathan Donley, PhD a senior scientist with the Center for Biological Diversity. “Syngenta should suspend the sale and use of this extremely toxic pesticide until it can safely ensure it’s not polluting Corn Belt waterways.” Syngenta, which merged with state-owned China Nation Chemical Corporation (Chemchina) in 2016, has been bound by EPA to monitor Midwestern waterways since a 2004 review by the agency. This is because atrazine is a potent groundwater contaminant. Just two years ago, an analysis by the Environmental Working Group found atrazine to be exceeding legal limits in drinking water for many Midwestern states. […]

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30
Apr

Animal Fodder – A Driver of the Global Highly Hazardous Pesticides (HHPs) Industry

(Beyond Pesticides, April 30, 2020) Chemical-intensive farming of crops for animal fodder powers the global market for highly hazardous pesticides (HHPs), according to data analyzed by Unearthed, and the Swiss NGO Public Eye. Animal fodder production not only intensifies global pollution, but it also increases pesticide exposure and degrades human, animal, and environmental health. This data analysis supports advocates advancing pesticide policies to eliminate HHPs by identifying which toxic chemicals lead global pesticide sales. However, it will take more than eliminating the worst chemicals to address the impending biodiversity collapse and the climate crisis, according to experts who point to the need for an urgent shift to organic land and agricultural management practices. United Nations’ (UN) special rapporteur on toxic substances and human rights, Baskut Tuncak, says, “There is nothing sustainable about the widespread use of highly hazardous pesticides for agriculture. Whether they poison workers, extinguish biodiversity, persist in the environment, or accumulate in a mother’s breast milk, these are unsustainable, cannot be used safely, and should have been phased out of use long ago.”  Unearthed and Public Eye investigated over $23 billion in global pesticide market sales to determine the proportion of pesticides considered highly hazardous by the Pesticide Action Network’s […]

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02
Mar

Take Action Today: Tell EPA to Ban Atrazine

(Beyond Pesticides, March 2, 2020) Deadline today! Tell EPA to Ban Atrazine; Protect Children and Frogs from this Endocrine Disrupting Pesticide. Atrazine, the second most-used herbicide in the U.S., is an insidious poison. Atrazine is known for producing developmental abnormalities in frogs. It also affects the endocrine system and reproductive biology of humans. In addition to its agricultural uses on corn, sorghum, and sugar cane, atrazine is also used on home lawns, school grounds, and parks, where exposure to children is common. Nontoxic alternatives are available for all of these uses. Act today, March 2. Sign the petition demanding that EPA ban atrazine and its cousins simazine and propazine. Act today! Beyond Pesticides will submit comments: Docket: EPA-HQ-OPP-2017-0750 (FRL-10002-92) Petition to EPA’s Office of Pesticide Programs: We have serious concerns with the proposed interim decisions on reregistration of three triazine pesticides: atrazine, simazine, and propazine. These triazines are highly mobile and persistent in the environment and have been linked to numerous adverse health and environmental effects which have motivated numerous public interest campaigns to ban their use in the U.S. as well as in Europe. The Draft Ecological Risk Assessments for the Registration Review of Atrazine, Simazine, and Propazine dated October 5, 2016 […]

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11
Feb

Toxic Herbicide Atrazine Causes Wasp Gut Microbiome to Develop Pesticide Resistance Across Generations

(Beyond Pesticides, February 11, 2020) A new study, published in the journal Cell Host & Microbe, homes in on the impact of the toxic herbicide atrazine on wasp gut microbiology and pesticide resistance. Intriguingly, researchers found that exposure to atrazine changed the composition of gut bacteria in individual wasps and shifts in gut flora were heritable. This study not only represents one of the first evolutionary studies on symbiont-mediated pesticide resistance, it also provides fodder for future research regarding the implications of exposure to xenobiotics (i.e., chemical substances like toxic pesticides foreign to an organism or ecosystem) for other gut bacteria hosts – such as honey bees and humans. Researchers utilized the hymenopteran insect model Nasonia vitripennis to analyze the effect of subtoxic exposure to atrazine across 36 generations. They reestablished a baseline of toxicity by experimenting with concentrations of atrazine to find the level at which 50% of the population died (LC50). During initial trials, some of the wasps were kept in a germ-free (GF) environment. The authors observed a higher mortality rate among the germ-free population, indicating that gut microbes assist with detoxification.   Early generations of wasps in the study received a field-realistic dose of atrazine (300 […]

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