Archive for the 'Chemicals' Category
15
Sep
(Beyond Pesticides, September 15, 2021) Toxic pesticide use, and glyphosate in particular, degrades the health of freshwater ecosystems by harming species that form the basis of aquatic food chains, according to research published by scientists at McGill University. In a series of studies, scientists investigated how freshwater bacteria and zooplankton were affected by varying levels the weed killer glyphosate, the neonicotinoid insecticide imidacloprid, and nutrient levels. âBecause plankton form the foundation of the food chain in freshwater ecosystems, it is very important to understand how plankton communities respond to widely used pesticides,â said Jesse Shapiro, PhD, an Associate Professor in McGillâs Department of Microbiology and Immunology. âOur research shows that the structure of these communities can be impaired under currently acceptable North American water quality guidelines.â Two separate experiments were conducted under similar conditions in order to properly investigate the effects of pesticide exposure on either zooplankton or freshwater bacteria. For both studies, target species were exposed to varying rates of glyphosate, imidacloprid, or both chemicals at either high or low water nutrient levels. Researchers conducted this study by establishing a series of outdoor experimental ponds, intended to mimic freshwater ecosystems by using Lake water and evenly distributing organisms throughout […]
Posted in Glyphosate, Imidacloprid, neonicotinoids, Uncategorized, Water | No Comments »
13
Sep
(Beyond Pesticides, September 13, 2021) The National Organic Standards Board (NOSB) is receiving written comments from the public through September 30. This precedes the upcoming public comment webinar on October 13-14 and online meeting October 19-21âin which the NOSB deliberates on issues concerning how organic food is produced. Written comments must be submitted through Regulations.gov. As always, there are many important issues on the NOSB agenda this Fall. For a complete discussion, see Keeping Organic Strong (KOS) and the Fall 2021 issues page. In the spirit of âcontinuous improvement,â we urge you to submit comments (please feel free to use our comments on the KOS page) that contribute to an increasingly improved organic production system. The Organic Foods Production Act (OFPA) requires that all synthetic materials used in organic production be approved by the NOSB, included on the National List, and reassessed every five years. Among those up for sunset review this Fall are some controversial materialsâcopper sulfate, carrageenan, and list 3 âinerts.â In addition, the NOSB is once more considering a petition to allow the antibiotic kasugamycin in fruit production. Copper sulfate is used in organic rice production to control algae and an invertebrate known as tadpole shrimp. It […]
Posted in Antibiotic Resistance, copper sulfate, Inerts, Uncategorized, US Department of Agriculture (USDA) | 1 Comment »
10
Sep
(Beyond Pesticides, September 10, 2021)Â Research conducted in Thailand shows that exposures to pesticides, even at low levels, can impact the human endocrine system and distort thyroid function. The study looked specifically at interactions of genetics and environment: it investigated associations between variations in genes involved in pesticide metabolism and altered thyroid hormone concentrations in agricultural workers. This research underscores some of the complexity and difficulty of determining human vulnerability to impacts of pesticide exposures, given genetic variables. Beyond Pesticides believes that this very complexity is a cogent argument for anchoring regulation of pesticides in the Precautionary Principle. If exposure to a pesticide can cause damage to human (or environmental) health, it sometimes will do so. Thus, to protect peopleâs health, agriculture and other land management practices must transition from the use of synthetic pesticides to broad adoption of organic regenerative approaches that obviate the need for such chemicals. This research is part of a longitudinal study that seeks to evaluate sub-chronic impacts, on thyroid hormone levels, of repeated exposures to a variety of pesticides. The farmworkers studied in this phase comprise two groups: those working on organically managed farms (216 subjects), and those working on conventional farms that use pesticides […]
Posted in 2,4-D, Agriculture, Carbaryl, Chlorpyrifos, cypermethrin, Endocrine Disruption, Environmental Protection Agency (EPA), Glyphosate, Lindane, Thyroid Disease, Uncategorized | No Comments »
08
Sep
(Beyond Pesticides, September 8, 2021) The U.S. Environmental Protection Agency (EPA) last month released a long-overdue biological evaluation of the three most commonly used neonicotinoid (neonic) insecticides, finding that the chemicals are likely to adversely affect the lionâs share of endangered species and their habitat. While the public may be most familiar with the damage neonics cause to pollinator populations, EPAâs evaluation highlights the widespread, indiscriminate harm scientists throughout the world have been sounding the alarm about for years. Advocates say the findings make it clear that neonicotinoids must be immediately banned from use. Under the Endangered Species Act (ESA), EPA is required to consult with federal wildlife agencies and conduct a biological evaluation of the impacts a pesticide may have on endangered species and their habitats, prior to the agency formally registering the pesticide. This almost never happens. EPA regularly fails to conduct this evaluation, requiring environmental and conservation organizations to sue the agency in order to force compliance with the law. Â EPA has been subject to a number of legal challenges over the last decade for its failure to comply with ESA when it registered neonics pesticides. In 2019, Ellis v Housenger (EPA), a lawsuit filed by […]
Posted in Clothianidin, Environmental Protection Agency (EPA), Imidacloprid, neonicotinoids, Thiamethoxam, Uncategorized, Wildlife/Endangered Sp. | 1 Comment »
02
Sep
(Beyond Pesticides, September 2, 2021) A McMaster University (Canada) study demonstrates exposure to the recently banned, commonly used insecticide chlorpyrifos promotes obesity development, even at low doses. Obesity generally occurs following a caloric imbalance between food intake, absorption, and energy expenditure. Although various factors can promote obesity, researchers suggest environmental toxicants like chlorpyrifos play a role in obesity development through protein/enzyme suppression. According to the Center for Disease Control, 42 percent of the U.S. population is obese and at risk for type two diabetes, cardiovascular (heart) disease, stroke, several cancers, and other critical health issues. Therefore, research like this highlights the significance of investigating how toxic chemical exposure can impact health to prevent adverse disease outcomes. Researchers note, âThese studies suggest that the effects of environmental toxicants on the development of obesity may have been underestimated as all studies to date have been conducted in mice housed at RT [room temperature]. Future studies examining the mechanisms driving reductions in β-AR [beta adrenergic receptors] signaling and whether there are associations between BAT [brown adipose tissue] metabolic activity and CPF [chlorpyrifos] in humans will be important.â Several environmental pollutants have links to obesity development via the effects on gut health, endocrine (hormone) and metabolic system, […]
Posted in Chlorpyrifos, multi-generational effects, Obesity | No Comments »
30
Aug
(Beyond Pesticides, August 30, 2021) As with other actions on pesticides, EPA’s chlorpyrifos decision is filled with exceptions that respond to vested interests seeking to ignore or deflect the science. EPA, since announcing its decision in 1999 to ban âresidentialâ uses of chlorpyrifos, continues to allow the following uses: (i) Residential use of containerized baits; (ii) Indoor areas where children will not be exposed, including only ship holds, railroad boxcars, industrial plants, manufacturing plants, or food processing plants; (iii) Outdoor areas where children will not be exposed, including only: golf courses, road medians, Industrial plant sites; (iv) Non-structural wood treatments including: fenceposts, utility poles, railroad ties, landscape timers, logs, pallets, wooden containers, poles, posts, and processed wood products; (v) Public health uses: Fire ant mounds (drench and granular treatment); (vi) nurseries and greenhouses; and (vii) Mosquito control. These uses are unaffected by EPA’s announcement. We need to finish the chlorpyrifos job. Tell EPA to ban all uses of chlorpyrifos. The collective effort to remove this one chemical is a tremendous feat in eliminating one exposure to a hazardous material for children. Achieving the ban on food uses required an enormously resource-intensive effort at a time in history when we are […]
Posted in Agriculture, Cancer, Children, Chlorpyrifos, Corteva, Dow Chemical, Endocrine Disruption, Environmental Protection Agency (EPA), Golf, Nervous System Effects, Rights-of-Way, Uncategorized, Wood Preservatives | No Comments »
26
Aug
(Beyond Pesticides, August 26, 2021) A recent study published in Environmental Research demonstrates that exposure to the herbicide glyphosate and its breakdown product reduces pregnancy length, increasing the risk of preterm birth. Preterm births occur when a fetus is born early or before 37 weeks of complete gestation. Premature births can result in chronic (long-term) illnesses among infants from lack of proper organ development and even death. Birth and reproductive complications are very common among individuals exposed to environmental toxicants, like pesticides. Considering the Center for Disease Control (CDC) reports the preterm birth rate is increasing annually, studies like this can help government and health officials safeguard human health by assessing adverse health effects following prevalent chemical exposure. The study notes, âGiven the prevalent and rising exposures to glyphosate and GBHs [glyphosate-based herbicides], confirmatory studies are needed to explore reproductive effects of glyphosate and GBHs to re-assess their safety on human health and to explore possible programming consequences to lifelong health.â GBHs are the most commonly used herbicides, readily contaminating soil, water, and food globally. Although GBHs’ ubiquitous nature has been linked to carcinogenic effects, specifically non-Hodgkin lymphoma, much less research considers exposure effects on reproductive health. The study’s scientists aimed to examine the relationship […]
Posted in Birth defects, Children, Glyphosate, Reproductive Health | 1 Comment »
19
Aug
(Beyond Pesticides, August 19, 2021) Does a science-based, public health-oriented, occupational safety focused, children-concerned, ecologically protective society allow the use of toxic pesticides that are unnecessary to achieve land management, quality of life, and food productivity goals? Should victims of poisoning have to plead with regulators to protect them? Should organizations have to fight chemical-by-chemical to achieve basic levels of protection from individual neurotoxic, cancer causing, endocrine disrupting pesticides? Of course not. But, the U.S. Environmental Protection Agencyâs (EPA) announcement that it is stopping food uses of the insecticide chlorpyrifos after being registered 65 years ago provides us with an important opportunity for reflection, not just celebration. The collective effort to remove this one chemical is a tremendous feat in eliminating one exposure to a hazardous material for children. That is the point. The action weâre celebrating required an amazingly resource-intensive effort at a time in history when we are running against the clock in an urgent race to transition our society and global community away from the use of petroleum-based, toxic pesticidesâto move to meaningful practices that sustain, nurture, and regenerate life. In this context, letâs put chlorpyrifos in perspective. EPA was forced into its decision by a court […]
Posted in Agriculture, Alternatives/Organics, Bifenthrin, Chlorpyrifos, Corteva, Dow Chemical, Environmental Protection Agency (EPA), Farmworkers, Golf, Uncategorized | 1 Comment »
10
Aug
(Beyond Pesticides, August 10, 2021) President Bidenâs Environmental Protection Agency (EPA), under Administrator Michael Regan, is set to reapprove the highly hazardous herbicide paraquat with fewer protections than those proposed by the Trump administration. Despite strong links to Parkinsonâs, and bans on the herbicide in the European Union, China, Brazil, and many other countries, EPAâs press release inexplicably states, âNo direct one-to-one alternatives to paraquat are available.â The move is part of a string of actions that have pesticide reform advocates increasingly concerned that the Biden Administration is not living up to his initial promises to improve health and environmental protections. Paraquat is the most toxic herbicide still on the market. As EPA readily admits, one small sip of paraquat can be fatal. Apart from its acute toxicity, chronic exposure to the herbicide is strongly linked to the development of Parkinsonâs disease. But its association with Parkinsonâs is merely the most well-known health concern â the chemical is a likely carcinogen, harms the reproductive system, and damages organs like the kidney and liver. It is hazardous to birds and bees, and prone to leaching into groundwater, where it disrupts the health of aquatic ecosystems. The Trump administrationâs decision to reapprove […]
Posted in Agriculture, Bayer, Cancer, Chlorpyrifos, Dicamba, Environmental Protection Agency (EPA), Glyphosate, Monsanto, Paraquat, Parkinson's, Uncategorized | No Comments »
09
Aug
(Beyond Pesticides, August 9, 2021)Â What’s going on at the Environmental Protection Agency (EPA)? Last month, Bayer/Monsanto announced it would voluntarily cancel âresidential lawn and gardenâ uses of glyphosate products, âexclusively to manage litigation risk and not because of any safety concerns.â EPA has done virtually nothing to restrict glyphosate/Roundup since the World Health Organization/International Agency for Research on Cancer in 2015 classified the chemical as probably carcinogenic. It is now expected, as with other voluntary cancellations, that EPA will make no health or environmental findings that could affect other uses (e.g., agricultural) of glyphosate, but will accept the action by Bayer/Monsanto. The company refers to its action as ârisk mitigationââthat’s risk to the company’s profitability, economic viability, and shareholder investment, not public health or environmental protection. Voluntary actions by the companies are highly compromised and do not include agency determinations or findingsâallowing false claims of safety, offering a shield from liability, and unencumbered international marketing. The Biden administration began with high hopes for the environment. Combating climate change is a priority. On his first day in office, President Biden issued an executive memorandum, Modernizing Regulatory Review, that appears to establish a new framework supporting healthy people and ecosystems, as it […]
Posted in Agriculture, Bayer, Dicamba, Environmental Protection Agency (EPA), Glyphosate, Monsanto, Take Action, Uncategorized, Wood Preservatives | 3 Comments »
30
Jul
(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 killerâs 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 âthe companyâs potential long-term exposureâ 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 âmanufacturers of poisonous substances.â (See more below.) Despite the extensive scientific review (see Pesticide Gateway) of glyphosate/Roundup and a âprobableâ cancer causing ranking by the World Health Organization/International Agency for Research on Cancer in 2015, Bayer says, âThis move is being made exclusively […]
Posted in Agriculture, air pollution, Alternatives/Organics, Aquatic Organisms, Bayer, Biodiversity, Chlorpyrifos, Corteva, Disease/Health Effects, Dow Chemical, Environmental Protection Agency (EPA), Genetic Engineering, Glyphosate, Monsanto, Pentachlorophenol, Uncategorized, Water, Wildlife/Endangered Sp. | 2 Comments »
28
Jul
(Beyond Pesticides, July 29, 2021) New research published in Environmental Health Perspectives finds nearly 300 different chemicals in pesticides, consumer products, and contaminated resources (i.e., food, water) increase breast cancer risks. 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 breast cancer incidences, while exposure to external environmental factors (i.e., chemical exposure) may play a more notable role. There are grave concerns over exposure to endocrine (hormone) disrupting chemicals and pollutants that produce adverse health effects. Most types of breast cancers are hormonally responsive and thus dependent on the synthesis of either estrogen or progesterone. Hormones generated by the endocrine system greatly influence breast cancer incidents among humans. Several studies and reports, including U.S. Environmental Protection Agency (EPA) data, identify hundreds of chemicals as influential factors associated with breast cancer risk. Therefore, advocates point to the need for national policies to reassess hazards associated with disease development and diagnosis upon exposure to chemical pollutants. The studyâs researchers note, âThis study shows that a number of chemicals currently in use have the ability to manipulate hormones known to adversely […]
Posted in Breast Cancer, contamination, Cyfluthrin, Reproductive Health | No Comments »
27
Jul
(Beyond Pesticides, July 27, 2021) Researchers at North Carolina State University have developed pesticide-free clothing able to prevent 100% of mosquito bites for the wearer, and published proof of the garmentâs effectiveness in a study in the journal Insects. If able to be scaled at a commercial level, the fabrics have the potential to transform personal protective measures for mosquitoes, which often includes in well-meaning consumers spraying toxic pesticides like DEET and permethrin on their body and clothing. âThe fabric is proven to work â thatâs the great thing we discovered,â said study co-author Andre West, associate professor of fashion and textile design at NCÂ State and director of Zeis Textiles Extension for Economic Development in a press release. âTo me, thatâs revolutionary. We found we can prevent the mosquito from pushing through the fabric, while others were thick enough to prevent it from reaching the skin.â To create the mosquito-proof fabric, scientists turned to physics and mathematical models, rather than looking for new killer chemistries. âOur premise here is: why do we need an insecticide-treated textile when you can do it, now that you know a mathematical formula, without chemistry?â said Michael Roe, PhD, an N.C. State professor of entomology […]
Posted in DEET, Mosquitoes, Permethrin, Uncategorized | 2 Comments »
22
Jul
(Beyond Pesticides, July 22, 2021) A new study published in the Journal of Medical Entomology finds black-legged ticks (Ixodes scapulari) in New York are developing potential resistance to widely used tick-control pyrethroid insecticide, permethrin. The study suggests continuous use of area-wide, 4-poster devices (devices that attract deer and then apply pesticide to their head, ears, and neck) to apply insecticide treatments on deer to control tick populations promotes resistance. Resistance is an ever-present issue among chemical compounds (i.e., antibiotics, antimicrobials, pesticides) used in medicine and agriculture, and threatening the ability to prevent disease outbreaks, such as Lyme disease. Furthermore, increasing populations of rodent and mammalian hosts, in addition to warmer temperatures prompted by the climate crisis, allows for disease-carrying ticks to flourish. Lyme disease is the most common vector disease and a primary concern for the general population. Therefore, studies like this highlight the need to assess resistance among disease-vector pest populations regardless of pesticide application methods. The researchers note, âPermethrin susceptibility of tick populations should be monitored from other 4-poster control areas so that guidelines for managing pesticide resistance in the field can be developed.â Four-poster devices impart selective pressure on tick populations influencing reproduction and natural extinction of species. However, like mosquitoes, a subpopulation of ticks […]
Posted in Disease/Health Effects, New York, Permethrin, pyrethroids, Resistance, Synthetic Pyrethroids, Ticks | 1 Comment »
21
Jul
(Beyond Pesticides, July 21, 2021) Western states are in the midst of one of the largest spray campaigns in recent history, targeting native grasshopper species on more than two million acres of rangeland with highly toxic insecticides. Grasshopper populations have exploded this year due to the Westâs ongoing drought, and government officials at the U.S. Department of Agriculture are hoping that hazardous pesticide use will stop the voracious winged insects from consuming forage used by cattle operations. Environmental groups are urging changes to the program, which has conducted insecticide campaigns against the native grasshoppers since the 1930s. âAerial application of insecticides on this scale will eliminate millions of insects that pollinate, recycle plant nutrients and perform natural pest control,â said Sharon Selvaggio, Pesticide Program Specialist with the Xerces Society. âInsecticide sprays on this scale across native ecosystems are short-sighted and unsustainable.â According to a June 2020 press release, USDAâs Animal and Plant Health Inspection Service (APHIS) is spending $5.3 million dollars of taxpayer money in order to conduct what it calls âsuppression treatments.â APHIS claims the $5.3 million will protect $8.7 million worth of agricultural resources, but advocates argue that the agency has failed to meet the âlevel of economic […]
Posted in Agriculture, Carbaryl, Environmental Protection Agency (EPA), Malathion, Uncategorized, US Department of Agriculture (USDA) | No Comments »
20
Jul
(Beyond Pesticides, July 20, 2021) Chlorpyrifos exposure results in the expression of genetic mutations associated with autism spectrum disorder in a laboratory model, finds research published in Environmental Health Perspectives by scientists at Johns Hopkins Bloomberg School of Public Health. âThis is a step forward in showing an interplay between genetics and environment and its potential role for autism spectrum disorder,â says study lead Lena Smirnova, PhD, a research associate in the Department of Environmental Health and Engineering at the Bloomberg School. The findings support reams of research already conducted that show strong associations between autism and exposure to hazardous environmental stressors like toxic pesticides. Scientists conducted their study using a âbrain organoidâ model, which is essentially a cluster of cells artificially grown in the lab from stem cells in order to mimic a developing human brain. These tests provide certain benefits over animal testing, as they are more relevant to human disease, and can be performed faster with less cost. The organoid model also represents an improvement on typical 2d cell-based models, increasing cell survival, shelf-life, and thus providing opportunity to model for later stages of brain development. Brain organoids in this study carried a gene called CHD8, which […]
Posted in Agriculture, Autism, Children, Chlorpyrifos, Environmental Protection Agency (EPA), Uncategorized | 1 Comment »
16
Jul
(Beyond Pesticides, July 16, 2021)Â Recently published research reviews the 2013 Wilsonville, Oregon mass bumblebee die-off from application of the neonicotinoid dinotefuran on 55 linden trees in a big-box-store parking lot. In that single event, the research paper (published in Environmental Entomology) estimates between 45,830 and 107,470 bumblebees from some 289â596 colonies were killed. Reporting on the new study, by Entomology Today, quotes primary conclusions of the co-authors: âOur study underscores the lethal impact of the neonicotinoid pesticide dinotefuran on pollinating insect populations,â and, âIt is likely that the vast majority of mass pesticide kills of beneficial insects across other environments go unnoticed and unreported.â As Beyond Pesticides has chronicled, the U.S. and the world are undergoing a pollinator crisis, caused in significant part by agricultural pesticides. Dinotefuran, the neonicotinoid (neonic) that killed those Oregon bumblebees, is used against fleas, thrips, tree-boring caterpillars, emerald ash borers, hemlock woolly adelgids, and in the Oregon case, aphids. Entomology Today (ET) notes that the timing of this particular application could not have been worse: it happened on a warm day when the linden trees were in full flower and the bees out in force. Ironically, it occurred during Nation Pollinator Week. ET pens a […]
Posted in acetamiprid, Agriculture, Clothianidin, dinotefuron, Imidacloprid, neonicotinoids, Oregon, Pollinators, Thiamethoxam, Uncategorized | No Comments »
14
Jul
(Beyond Pesticides, July 14, 2021) Corteva (formerly DowDupont) is facing a potential class-action lawsuit after several California families filed suit claiming that the use of the insecticide chlorpyrifos around their homes resulted in birth defects, brain damage, and developmental problems in their children. Chlorpyrifos is an organophosphate insecticide that has been linked to a range of health ailments, posing significant hazards particularly for pregnant mothers and their children. The lawsuits come as the U.S. Environmental Protection Agency (EPA) approaches a court-imposed 60-day deadline to decide the fate of the pesticideâs registration. Attorneys for the court cases, filed on behalf of individuals located in four California communities (Fresno, Kings, Medera, and Tulare counties), indicate they intend to pursue class-action status, which would allow additional injured parties to join the lawsuit. The plaintiffs argue that the effects of chlorpyrifos exposure lingers in the agricultural communities where they reside. âWe have found it in the houses, we have found it in carpet, in upholstered furniture, we found it in a teddy bear, and we found it on the walls and surfaces,â said Stuart Calwell, lead attorney for the plantiffs. âThen a little child picks up a teddy bear and holds on to it.â […]
Posted in Agriculture, Brain Effects, California, Chlorpyrifos, Corteva, Dow Chemical, Environmental Justice, Environmental Protection Agency (EPA), Farmworkers, Litigation, Nervous System Effects, Uncategorized | No Comments »
13
Jul
(Beyond Pesticides, July 13, 2021) Bumblebees exposed to pesticides and pathogens display changes in gene expression that can be pinpointed and analyzed by cutting edge research tools, according to scientists at York university, who utilized the new technique in a study published in Molecular Ecology. This form of next-generation gene sequencing is part of a growing field of science known as conservation genomics, in which entire animal genomes are sequenced to determine conservation problems. âNext-generation sequencing is a totally new way to think about why bees are declining, which could revolutionize conservation biology,â says study coauthor Amro Zayed, PhD, associate professor in biology at York. âWeâre looking directly at bee tissues to try and get clues to the stressors that are affecting this bee. I think this is a gamechanger for sure. With a single study, we are able to implicate a couple of really obvious things weâve talked about for years â pathogens and pesticides â in the case of Bombus terricola.â Researchers focused on Bombus terricola â the yellow banded bumblebee, as its range has declined significantly over the last two decades. The bumblebee was once common throughout the eastern and midwestern part of the U.S. and Canada, […]
Posted in Fipronil, neonicotinoids, Pollinators, Uncategorized | No Comments »
08
Jul
(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 âbetter understand whether contaminant exposure affects oyster condition.â 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 […]
Posted in Antibiotic, Aquaculture, Aquatic Organisms, contamination, Pesticide Residues, Toxic Waste, Uncategorized, Water | No Comments »
01
Jul
(Beyond Pesticides, July 1, 2021) Yellow fever mosquitoes (Aedes aegypti) are evolving resistance to the pyrethroid insecticide permethrin, according to a study published by Colorado State University, highlighting the need to adopt ecologically-based mosquito management. Widespread, intensive use of the pesticide in mosquito control has allowed genetic mutations to persist among these mosquito populations, causing subsequent resistance to permethrin. Pyrethroids are one of the few remaining classes of insecticides available to control yellow fever mosquitos, and resistance threatens the ability to prevent disease outbreaks with chemical-intensive methods. Yellow fever mosquitoes are a vector for numerous untreatable diseases in humans, including dengue, chikungunya fever, and Zika viruses. Hence, this study highlights the significance of addressing pest resistance to pesticide control, particularly to mitigate disease exposure and effects. The researchers note, âThis knowledge can help scientists understand how mosquitoes have evolved resistance and when a population can no longer be controlled with permethrin. This understanding will be necessary to develop tools to support future insecticide management strategies.â Researchers sequenced the genome of resistant and knockdown (either recovered or dead) mosquitoes after permethrin exposure using a bottle bioassay. The aim was to identify genomic variants/biomarkers associated with specific resistance mechanisms. Two common pyrethroid resistance mechanisms occur among […]
Posted in Mosquitoes, Permethrin, pyrethroids, Resistance, Synthetic Pyrethroids | No Comments »
30
Jun
(Beyond Pesticides, June 30, 2021) Vineyard farmers who spend more money on pesticide use are more likely to develop Parkinsonâs disease, according to research published by French scientists in the journal Environmental Research. With Parkinsonâs disease on the rise around the world, and emerging evidence growing for a Parkinsonâs pandemic, it is critically important to suss out the factors at play. And as pesticides continue to appear as a driving force for this deadly chronic disease, it is increasingly necessary to pressure regulators to restrict use of these hazardous substances in chemical farming operations. Researchers used a French National Health Insurance Database to identify incidents of Parkinsonâs disease in farmers from 2010-2015. These data were then matched with pesticide expenditures recorded from over 3,500 French farming regions, taken around the year 2000. Models were adjusted for a range of health factors, including smoking, age, and sex. Results show that accounts of Parkinsonâs disease increase as pesticide expenditures increase for farmers working in vineyards. For the highest amounts paid for pesticides, Parkinsonâs disease incidence is 16% higher. No connections were found for other cropping systems. âThis result suggests that agricultural practices and pesticides used in these vineyards may play a role […]
Posted in Agriculture, Dithiocarbamates, Environmental Protection Agency (EPA), Fungicides, Parkinson's, Uncategorized, Ziram | No Comments »
29
Jun
(Beyond Pesticides, June 29, 2021) Maine Governor Janet Mills (D) last week vetoed legislation prohibiting the aerial use of glyphosate and other dangerous herbicides in forestry practices. LD125, An Act To Prohibit the Aerial Spraying of Glyphosate and Other Synthetic Herbicides for the Purpose of Silviculture, was supported by a wide range of health and conservation groups, and aimed to bring the state in line with best practices for public health and the environment. With Maine recently passing one of the strongest consumer bans on pollinator-toxic neonicotinoids, advocates are dismayed by the setback from the Governorâs office. In a statement to Maine Public Radio, Senate President Troy Jackson said that Governor Mills should stop referring to herself as an environmentalist. “The science across the country, across the world, says that this stuff kills people, kills wildlife,” Mr. Jackson says. “And all that it is, is a giveaway to the large landowners so they can maximize their profits off the lives of the people in Maine and the wildlife in Maine.” Senator Jacksonâs words are stern yet factual. Glyphosate has been identified by the World Health Organization as a probable human carcinogen. Monsanto, now owned by Bayer, has been the subject […]
Posted in Bayer, Cancer, Drift, Endocrine Disruption, Environmental Protection Agency (EPA), Forestry, Glyphosate, Maine, Monsanto, Pollinators, Uncategorized | No Comments »