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Daily News Blog

Archive for the 'Aquatic Organisms' Category


15
Mar

Coral Reefs Under Threat by Glyphosate, Toxic Pesticides

(Beyond Pesticides, March 15, 2024) Toxic pesticides harm all beings and ecosystems, including coral reefs. Large benthic foraminifera (LBF) are single-celled organisms found on reefs that face adverse metabolic impacts after exposure to the weed killer glyphosate and insecticide imidacloprid, according to a study published in Marine Pollution Bulletin. The study found that “even the lowest doses of the fungicide and herbicide caused irreparable damage to the foraminifera and their symbionts.” Beyond Pesticides reiterates our mission of banning toxic petrochemical pesticides by 2032 and that this goal applies to land and water exposure to pesticides. LBFs are typically used as bioindicators for coral health because they are found in substantial quantities and gathering data is not intrusive or damaging to reef health. Researchers in this study screened three different herbicides (one insecticide, one fungicide, and one herbicide) at three different concentration levels. The experiments were performed in six well-samples, each with 10mL of filtered artificial seawater and a singular LBF. The control plates are artificial seawater and the experimental plates include artificial seawater with the addition of three pesticides (imidacloprid, glyphosate, and tebuconazole). Each pesticide was applied at low, medium, and high doses to measure the direct impacts of each […]

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19
Dec

Groups Petition EPA to Remove from the Market the Weed Killer Glyphosate

(Beyond Pesticides, December 19, 2023) Last week, farmworker organizations and Beyond Pesticides, represented by the Center for Food Safety, filed a petition with the U.S. Environmental Protection Agency (EPA) urging that the weed killer glyphosate be removed from the market. The petition cites 200 studies, which represent a fraction of the independent scientific literature on the hazards of glyphosate and formulation ingredients of glyphosate products. This action follows previous litigation in 2022 in which a federal court of appeals struck down EPA’s human health assessment, finding that the agency wrongfully dismissed glyphosate’s cancer risk. The farmworker groups petitioning include Farmworker Association of Florida, OrganizaciĂłn en California de Lideres Campesinas, Alianza Nacional de Campesinas, and the Rural Coalition.   Meanwhile, verdicts against glyphosate’s manufacturer, Bayer, continue to pile up with a December jury verdict in Pennsylvania awarding $3.5 million and a November jury in Missouri ordering $1.56 billion to be paid to four plaintiffs. All link their cancer to use of the Roundup. Bayer has lost almost all of the cases filed against it for compensation and punitive damages associated with plaintiffs’ charge that its product (previously manufactured by Monsanto) caused them harm.  The petition summarizes its purpose and justification as […]

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01
Nov

NFL Players Association Calls for Stadiums to End Synthetic Turf Use

(Beyond Pesticides, November 1, 2023) As communities consider maintenance and renovation of their playing fields, it is not uncommon for synthetic (or artificial) turf to come up as an alternative to natural grass. Promoters of synthetic turf argue that it provides a solution to climate change, reduces water use and maintenance costs, and allows for year-round play. But is this true? Is synthetic turf an environmentally responsible alternative to its organic grass counterpart? An established and growing body of scientific evidence is demonstrating environmental and health risks with synthetic turf. In addition, there is growing concern for the safety of those playing on artificial grass, which has led to a call from the National Football League’s (NFL) Players Association to utilize natural grass on all 30 NFL stadiums after New York Jets quarterback Aaron Rodgers suffered a season-ending Achilles tear in September and Kansas City Chiefs tight end Travis Kelce’s mid-game ankle injury. Synthetic turf playing fields are reliant on polluting plastic (can contain perfluoroalkyl and polyfluoroalkyl substances-PFAS) and toxic pesticides for managing bacteria, mold and fungus, create contaminated water runoff, and cover over the natural environment, which is critical to preserving health and biodiversity, and averting climate disasters. Artificial […]

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11
Sep

Take Action: Officials Implored To Protect Ecosystems of National Wildlife Refuges

(Beyond Pesticides, September 11, 2023) As environmental groups pursue a legal strategy to challenge the U.S. Fish and Wildlife Service (USFWS) for its failure to protect a wildlife refuge from industrial aquaculture, they are also urging the public to hold Refuge officials accountable to the Refuge Improvement Act with a write-in campaign. (See Take Action campaign below.) Earlier this year, USFWS allowed the establishment of a commercial aquaculture operation that cultivates 34 acres of non-native Pacific oysters within a 50-acre tideland parcel leased  from the Washington State Department of Natural Resources within the Dungeness National Wildlife Refuge. The failure to fully evaluate the compatibility of this use with the purposes of the refuge raises concerns of compliance with the law governing National Wildlife Refuges throughout the country. Beyond Pesticides has said, “USFWS is willing to allow, for private profit, the industrialization of refuge lands for shellfish operations.”  Refuges are critical habitat throughout the U.S. that protect critical ecosystems. According to the lawsuit, the Dungeness National Wildlife Refuge shelters a bay rich in marine life. Eelgrass beds attract brant, shorebirds feed on the tideflats, and ducks find sanctuary in the calm waters. The Refuge is a preserve and breeding ground for more than […]

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03
Aug

Reflections: “I’m a Barbie girl, in the Barbie world. Life in plastic is [NOT] fantastic”

It’s hard to escape the impacts of the Barbie movie’s estimated $150 million marketing campaign. You may have noticed advertisements with Burger King’s pink burgers to Airbnb’s Barbie Dreamhouse. Perhaps you have seen viral memes or news stories about the movie’s takedown of the patriarchy or critiques that the movie is overly woke. The pink symbol of Barbie is often followed by a second symbol — plastic. The total mass of plastics on Earth now doubles the total mass of all living mammals, so would Barbie say life is fantastic? Or, might she urge the National Organic Standards Board to ban plastic mulch, an issue on the agenda at the Board’s upcoming October meeting? Plastic products, including those used in chemical-intensive and organic agriculture, and pesticides, play a seemingly necessary role in modern life, encompassing many items beyond straws and grocery bags. However, the convenience of plastic comes at a considerable cost to the planet and human health. The majority of plastics are manufactured using oil and gas, exacerbating climate change. Scientists are becoming increasingly alarmed by the repercussions of microplastics, which are plastic particles smaller than 5 mm in size. In 2022, Philip Landrigan, M.D., et al., announced the […]

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04
Oct

Pesticides in Sediment Contribute to Secondary Source of Chemical Pollution in Aquatic Environments

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

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22
Jul

Report Rings Alarm of Plummeting Plankton Population, Threatening Ocean Life and Beyond

(Beyond Pesticides, July 22, 2022) A preliminary report on two years of water sampling from sites in the Atlantic Ocean near the United Kingdom (UK), by a team from the Global Oceanic Environmental Survey Foundation (GOES), suggests that plankton populations may have plummeted by 90% since baseline 1940 levels. Just as insects are crucial as the basis of terrestrial ecosystems, plankton are the base of aquatic and marine food chains. As reported by Scotland’s Sunday Post, the reasons include chemical pollution in the ocean from plastics, synthetic fertilizer runoff, and pharmaceuticals. Beyond Pesticides adds that intensive use of synthetic pesticides also contributes to inhospitable conditions for the variety of plankton in our oceans. The researchers warn, “An environmental catastrophe is unfolding. We believe humanity could adapt to global warming and extreme weather changes. It is our view that humanity will not survive the extinction of most marine plants and animals.” The GOES website asserts, “The story that appeared on the front page of the Sunday Post was based on research and reports from www.GoesFoundation.com. We have just completed the largest Citizen Science project to map microplastic as well plankton productivity across the equatorial Atlantic. The results were so bad, we released an […]

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15
Apr

Beyond Pesticides Makes Science-based Case that It Is Imperative to Phase Out Pesticides in a Decade

The organic solutions to problems highlighted in the latest issue of Pesticides and You—based on the importance of healthy ecosystems and public health protection—are within reach, and the data creates an imperative for action now that phases out pesticides within a decade, while ensuring food productivity, resilient land management, and safe food, air, and water. (Beyond Pesticides, April 15, 2022) The current issue of Pesticides and You, RETROSPECTIVE 2021: A Call to Urgent Action, is a look at a year of science, policy, and advocacy that informs both the existential problems that the U.S. and the world are facing due to toxic pesticide dependency, and solutions that can be adopted now. The information in this issue captures the body of science that empowers action at the local, state, and federal level, and provides a framework for challenging toxic pesticide use and putting alternatives in place. The issue finds that 2021 was a pivotal year in both defining the problem and advancing the solution. This year in review is divided into nine sections that provide an accounting of scientific findings documenting serious pesticide-induced health and environmental effects, disproportionate risk to people of color and those with preexisting conditions, regulatory failures, at the same time […]

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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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05
Aug

Debilitating Ear Blisters Plague Long Island Turtle Populations from Pesticide Use

(Beyond Pesticides, August 5, 2021) A recent report by Turtle Rescue of the Hamptons finds Long Island, New York turtles are experiencing higher rates of deadly aural abscesses or ear blisters from pesticide use. Previous research documents the role chemical exposure from environmental toxicants play in inner ear abscess formation among turtles. However, synergism (collaboration) between viral infection and toxic chemical exposure increases aural abscess instances. Considering these infections are taking a toll on the Long Island turtle population, government and wildlife officials must assess how chemical exposure promotes disease development to safeguard human, animal, and environmental health. Karen Testa, executive director of Turtle Rescue of the Hamptons, cautions, “I’m urging Long Islanders to think about how these pesticides are negatively impacting the natural world. Is your perfect green lawn worth the life of a turtle?” Aural abscesses are painful ear blisters that can grow as big as a golf ball. Medical intervention is necessary to remove abscesses from turtles and treat them with an antibiotic regimen to prevent death. Turtle Rescue facility workers report a staggering 50 percent of turtles currently within their care to have aural abscesses. The percentage of turtles with this diagnosis is much higher than in past years. […]

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30
Jul

Commentary: Will Playing Fields, Parks, and Lawns Be Safe After Glyphosate in Roundup Residential Use Ends in 2023?

(Beyond Pesticides, July 30, 2021) Bayer (Monsanto), the maker of the deadly herbicide glyphosate/Roundup, after hinting in May that it would end the weed killer’s residential uses in the U.S., made it official yesterday. With its announcement to shareholders, Bayer puts an end to residential uses beginning in 2023 and allocates $4.5 billion to cover “the company’s potential long-term exposure” from lawsuits by those harmed by the chemical. At the same time, the company announced it is seeking a U.S. Supreme Court hearing to reverse significant jury verdicts (from $289 million to $2 billion) for individuals who have suffered health damage they tie to glyphosate exposure. Bayer claims that it will argue that federal pesticide law preempts litigation against products that it has registered with the U.S. Environmental Protection (EPA). Similar arguments have been tried before, most notably in Bates v. Dow Agrosciences (2005), and the Supreme Court has found that federal pesticide law does not protect “manufacturers of poisonous substances.” (See more below.) Despite the extensive scientific review (see Pesticide Gateway) of glyphosate/Roundup and a “probable” cancer causing ranking by the World Health Organization/International Agency for Research on Cancer in 2015, Bayer says, “This move is being made exclusively […]

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08
Jul

Chemicals, including Pesticides, in Wastewater Discharge Contaminate Oysters in Pacific Northwest

(Beyond Pesticides, July 08, 2021) A Portland State University (PSU) study finds oysters of varying distances from wastewater discharge pipes along the Oregon and Washington state coast contain low levels of chemical contaminants. Although wastewater treatment facilities clean water draining from sinks and toilets, the process does not adequately remove all contaminants. The process can leave behind pharmaceutical drugs and personal care products (e. g., shampoos, make-up, deodorant) residues in treated water. PSU has already found that pesticides from the forestry industry threaten clams, mussels, oysters (bivalves) along the Oregon coast. Marine ecosystem pollution is difficult to track and measure, and pesticide regulations can invoke variations in water quality requirements through discrepancies in buffer zones and application concentrations. The combined presence of pesticides, medicine, and personal care products in aquatic environments has direct implications for species and ecosystem health and indirect consequences for human well-being. Therefore, studies like this can help government and health officials develop strategies to reduce the number of chemicals entering aquatic ecosystems, with researchers noting officials can “better understand whether contaminant exposure affects oyster condition.” Researchers wanted to evaluate how proximity to wastewater facilities affects variations in aquatic pollution. Thus, scientists transplanted one-week-old Pacific oysters along the Oregon and […]

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23
Jun

Pesticide Contamination in Waterways Raises New Alarm for Aquatic Life, Citing Poor Regulation

(Beyond Pesticides, June 23, 2021) Small streams are prone to excessively high levels of pesticide contamination that are even more hazardous than once thought, according to a pilot study generated by a team of German researchers. The results indicate significant risks for the health of aquatic ecosystems and should be used as evidence for establishing greater protections from toxic pesticide use, researchers say. With many aquatic benchmarks set by the U.S. Environmental Protection Agency lower than those established in Germany and the European Union, and evidence of widespread pesticide contamination in America’s waterways, the study could have even greater weight for for U.S. regulatory agencies’ deficiencies. Scientists established monitoring sites at more than 100 streams throughout Germany over the course of two years. Most sites were established near farm fields, where chemical farmers will use highly toxic pesticides than often make their way into local waterways. Streams were monitored for pesticide concentrations, with particular eye to whether they met the country’s regulatory acceptable concentration (RAC value) in a given water body. The RAC value is intended to be the highest level at which there will be no adverse effects on aquatic life, however these regulatory levels often do not correspond […]

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03
Jun

Threat to Ocean Health: Pesticide Resistant Fish Lice Plague the North Atlantic Ocean

(Beyond Pesticides, June 3, 2021) A report published in Royal Society Open Science finds pesticide-resistant parasitic lice (Lepeophtheirus salmonis) are endangering wild and farmed fish populations in the North Atlantic. Extensive use of pesticides to rid the parasite has led to widespread resistance to multiple pesticides, prompting increasing infection rates among North Atlantic salmon populations. Overexploitation of wild fish and other ocean organisms has depleted seafood stocks globally. Some fisheries market aquaculture practices, like fish/seafood farming, as a solution to overfishing. However, the aquaculture industry repeatedly faces sustainability issues and fails to adhere to environmental regulations that threaten marine health. The oceans are essential to human health and well-being, feeding billions, supporting millions of jobs, and supplying medicinal materials. However, environmental contaminants like pesticides have profound impact on the ecosystem and the inhabitants. Therefore, it is necessary to understand how pesticides can influence resistance among lethal pest populations, especially in ecologically vulnerable and highly interconnected ecosystems like ocean basins. The authors of the report caution, “These results demonstrate the speed to which this parasite can develop widespread multi-resistance, illustrating why the aquaculture industry has repeatedly lost the arms race with this highly problematic parasite.” Over the past two decades, organophosphate and pyrethroid insecticides […]

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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
Feb

Aggressive Cancer in Sea Lions Linked to Ocean Pollution and Herpesvirus Precursor, Implications for Human Health

(Beyond Pesticides, February 11, 2021) California sea lions (Zalophus californianus) are experiencing high rates of urogenital carcinoma (UGC) cancer incidences from the combined effect of toxic “legacy” pesticides like DDT and the viral infection Otarine herpesvirus-1 (OtHV1), according to a new study published in Frontiers in Marine Science. Previous research documents the role herpesvirus infection, genotype, and organochlorine pesticides play in sea lion cancer development. However, synergism (collaboration) between viral infection and toxic chemical exposure increases cancer development odds. Pollution of the oceans with toxic chemicals lacks adequate regulation, is widespread and only getting worse. More than 80 percent of ocean pollution comes from land-based, anthropological activities. A recent study published in Annals of Public Health finds toxic chemicals from pesticides, heavy metals, plastics, and other sources readily contaminate the ocean, especially near coastal regions where chemical inputs occur in higher concentrations. Globally, pollution has major disease implications, causing the deaths of over nine million people annually. Therefore, it is essential to understand the co-effects of ocean pollution and diseases to protect human health. Authors of the study state, “This study has implications for human health, as virally associated cancer occurs in humans, and likelihood of cancer development could similarly be increased by exposure to environmental […]

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07
Jan

Pesticides and Road Salt: A Toxic Mixture for Aquatic Communities

(Beyond Pesticides, January 7, 2021) Insecticides and road salts adversely interact to alter aquatic ecosystems, reducing organism abundance and size, according to a study in the journal Environmental Pollution. Pesticide use is ubiquitous, and contamination in rivers and streams is historically commonplace, containing at least one or more different chemicals. Although road salts can prevent hazardous ice formation during the colder months, the study raises critical issues regarding the adverse interaction between road salts and pervasive environmental pollutants that threaten human, animal, and environmental health and safety. Authors of the study note, “Our results highlight the importance of multiple-stressor research under natural conditions. As human activities continue to imperil freshwater systems, it is vital to move beyond single-stressor experiments that exclude potentially interactive effects of chemical contaminants.” To assess the impact of road salts and insecticides on aquatic communities, researchers created a mesocosm (controlled outdoor experimental area) to examines the natural environment under controlled conditions. These communities include zooplankton, phytoplankton, periphyton, and leopard frog (Rana pipiens) tadpoles. Researchers performed a toxicity evaluation of six insecticides from three chemical classes (neonicotinoids: thiamethoxam, imidacloprid; organophosphates: chlorpyrifos, malathion; pyrethroids: cypermethrin, permethrin). Additionally, researchers note the potentially interactive effects of these insecticides with three concentrations of […]

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24
Sep

U.S. Geological Survey Finds Mixtures of Pesticides Are Widespread in U.S. Rivers and Streams

(Beyond Pesticides, September 24, 2020) A new report by the U.S. Geological Survey (USGS), National Water-Quality Assessment (NAWQA) Project, reveals the presence of pesticides is widespread in U.S. rivers and streams, with over almost 90 percent of water samples containing at least five or more different pesticides. Pesticide contamination in waterways is historically commonplace as 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 U.S. 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 a significant tool in determining appropriate regulatory action to protect human, animal, and environmental health. USGS concludes, “Identification of primary contributors to toxicity could aid efforts to improve the quality of rivers and streams to support aquatic life.” Water is the most abundant and important chemical compound on earth, essential to survival and the main component of all living things. Less than three percent of that water […]

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31
Aug

Act by Sept. 3—Help Keep Toxic Herbicides Out of Lake Tahoe, Protect this Treasured and Sacred Ecosystem; Advance Alternatives 

(Beyond Pesticides, August 31, 2020) We don’t need to use toxic weed killers to manage unwanted vegetation in Lake Tahoe, given the havoc they will wreak on a treasured and sacred ecosystem. The Tahoe Regional Planning Agency and Lahontan Regional Water Quality Control Board (TRPA/LRWQCB) are accepting comments on a draft environmental impact report/ environmental impact statement (EIR/EIS) analyzing environmental impacts of a proposed Tahoe Keys Lagoons Aquatic Weed Control Methods Test (“Project”). Unless we all speak up, the Project could involve the application of herbicides to Lake Tahoe. The Action Alternative 1: Testing of Non-Herbicidal Methods Only is the environmentally best choice and should be selected for the proposed weed control test program. Protect Lake Tahoe from toxic weed killers—take action by Sept. 3, 11:59 pm. Located on the border of California and Nevada, Lake Tahoe is treasured for its scenic and ecological values not just by residents of those states, but by many others. The Washoe Tribe considers the lake to be a sacred life-sustaining water, the center of the world. The lake is designated an “Outstanding National Resource Water” under the Clean Water Act, and is recognized nationally and globally as a natural resource of special significance.  The […]

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21
Jul

Combined Effects of Pesticide Exposure and Climate Change Significantly Harm Coral Reef Fish

(Beyond Pesticides, July 21, 2020) Climate change and pesticide pollution are known to put coral reef fish at significant risk, but research published in Nature Communications shows how these risks can be both overlapping and synergistic. “Fish face a variety of human-induced stressors including increasing water temperatures and pollution from agricultural pesticides,” says study coauthor William Feeney, PhD from Griffith University. According to researchers, both of these stressors alone harm the endocrine (hormone) system and are subsequently exacerbated in combination with each other. To study the impact of climate change and pesticide pollution, researchers exposed convict surgeon fish (Acanthurus triostegus) to varying levels of water temperature increases, as well as varying levels of the insecticide chlorpyrifos. The scientists then observed how these changes affected the level of hormones the fish were expressing, and how they acted in the presence of predators. “Both a three-degree temperature increase and exposure to pesticide led to a decrease in the amount of thyroid hormones in exposed fish,” said Marc Besson, PhD, lead author, from PSL Research University, Paris. “These hormones control the development of sensory structures such as the retina, the nostrils and the lateral line, which enables fish to detect nearby water movement.” […]

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02
Jul

Endocrine Disrupting Chemicals, Including Pesticides, Have a Multi-Generational Impact on Commercially Beneficial Inland Silverside Fish

(Beyond Pesticides, July 2, 2020) Exposure to low levels of endocrine-disrupting chemicals commonly in waterways, including pesticides, can impact future generations of major commercial fish, despite no direct exposure to the chemicals, according to research published in the journal Frontiers in Marine Science by Oregon State University (OSU) researchers. Many studies assess the acute or chronic health implications associated with endocrine disruptors on a single generation but lack information on multi-generational impacts that can provide vital information on the fundamental survivability or fitness of many species. This study highlights the significance of understanding the implications of endocrine disruptors, even at low levels of exposure, as parental exposure can have adverse epigenetic consequences for future generations. Kaley Major, a Ph.D. fellow at Oregon State University (OSU) and lead research author, explains, “What t[his] gets at is something your grandparents may have come into contact within their environment can still be affecting the overall structure of your DNA in your life today.” Endocrine disruptors are xenobiotics (i.e., chemical substances like toxic pesticides foreign to an organism or ecosystem). Past research shows exposures to endocrine-disrupting chemicals can adversely impact human, animal—and thus environmental—health, by altering the natural hormones in the body responsible for […]

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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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28
Apr

One Quarter of Global Insect Population Lost Since 1990

(Beyond Pesticides, April 28, 2020) Roughly a quarter of the global insect population has been wiped out since 1990, according to new research published in the journal Science. Billed as one of the most comprehensive assessments to date, the study finds significant overall insect declines, but notes of some specific bright spots. While variation in the ongoing crisis is to be expected, ultimately the trends in the data show the need for immediate policy and regulatory action to protect the insect world as the foundation of global food webs. The team of European scientists behind the research analyzed 166 studies spread out over 41 countries, and consisting of over 1,600 sites, with data beginning in the mid-1920s. Overall trends found declines in terrestrial insect biomass to be nearly 1% each year (~9% each decade). However, contrasting this data was a bright spot – freshwater insects were found to be increasing at an annual rate just over 1% (~11% each decade). The authors caution, however, that because fresh water covers only 2.4% of the earth’s surface, the increase may not be a good spatial representative of broader trends. While North America appeared to show more significant declines when compared to Europe, […]

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