(Beyond Pesticides, August 27, 2013) A new study by scientists at the University of Missouri College of Agriculture, Food, and Natural Resources is shedding light on the persistence of nanopesticides in our food. Researchers focused their attention on silver nanoparticles (nanosilver), a substance that has been linked to environmental harm, bacterial resistance, and not fully understood impacts on human health. Scientists say their findings represent a reliable method of testing foods for the harmful particles and hope to more broadly implement their technique in the future. The last decade has witnessed a large influx in the use of nanotechnology in consumer products, including food, clothing, cosmetics, fertilizers, and pesticides. The growth of this technology has elicited strong reactions from scientists across the globe, with many asserting that further research is urgently needed to evaluate the potential impacts of these novel substances. As Mengshi Lin, Ph.D, associate professor at the University of Missouri (MU) and co-author of the study states, “More than 1,000 products on the market are nanotechnology-based products. This is a concern because we do not know the toxicity of the nanoparticles. Our goal is to detect, identify and quantify these nanoparticles in food and food products and study […]

(Beyond Pesticides, August 14, 2013) With another school year upon us, this can be an exciting and busy time of the year for parents and teachers as children prepare for the first day back. During this hectic time, it’s important to remember that children may face unexpected dangers at school from well-intentioned but misguided attempts to create a germ and pest-free environment through the use of pesticides. Students are better served when schools use environmentally friendly products and practice integrated pest management techniques.   Additionally, schools can further their students’ education outside the classroom by providing habitat for wildlife and growing organic food in a school garden.   By thinking green and going organic, your child’s school can become a model for the type of change that’s occurring in communities across the nation. Beyond Pesticides has put together this back-to-school guide to help safeguard your kids from dangerous chemicals at school. Use this list to start the new school year right and ensure that you are sending your kids back to a healthier and safer environment. Fight Germs Without Triclosan Because of its link to adverse health effects – including asthma, cancer and learning dis ­abilities, triclosan has no place […]

(Beyond Pesticides, August 12, 2013) A recent study on triclosan, an antibacterial pesticide found in soaps, deodorants, toothpastes, cosmetics, fabrics, plastics, and toys, finds that exposure changes the composition of bacterial communities in streams and also increases bacterial resistance. The study contributes to continually mounting evidence demonstrating that triclosan is toxic to human health and the environment, even as the U.S. Environmental Protection Agency (EPA) gets ready to review the registration of the chemical. In May, EPA initiated the registration review of triclosan, an antibacterial pesticide that has been heavily scrutinized by concerned groups, including Beyond Pesticides, as well as members of Congress. Under pressure after its 2008 review, EPA announced that it would again review triclosan in 2013, five years earlier than scheduled. Over the last few years, as a direct result of pressure from consumer groups and the media regarding the need for triclosan in consumer products and the mounting scientific evidence documenting adverse health effects, including impacts to the thyroid hormone, major manufacturers have begun to quietly reformulate their products without triclosan. This study, published in the journal Environmental Science and Technology, took several field and artificial stream surveys, to identify the effects of triclosan on bacterial […]

(Beyond Pesticides, July 23, 2013) When shopping for sportswear nowadays, you might notice the stickers or tags on some clothing items touting the apparel as “antimicrobial.” What’s not mentioned on those tags, however, is the point that these antimicrobials, often titanium dioxide or silver nanoparticles (nanosilver), are largely untested, and recent studies are revealing that these substances could seep into a person’s sweat and end up being absorbed through one’s skin. Lead researcher of the study published in Environmental Science and Technology, Natalie von Gotz, Ph.D,, found that some pieces of clothing released significant amounts of nanosilver. Manufacturers are adding nanoparticles to clothing in order to tout their ability to block UV rays (titanium dioxide) or prevent mold and smells (nanosilver) on clothing. However, the long-term impacts of this new technology to human health and the environment are still unknown. There are concerns about the ability of nanomaterial to travel through the human body and damage brain, liver, stomach, testes and other organs, as well as pass from mother to fetus, according to a recent Natural Resources Defense Council (NRDC) report. Laundering these products ultimately washes them into our environment because sewage treatment plants are not set up to filter […]

(Beyond Pesticides, May 10, 2013) The U.S. Environmental Protection Agency (EPA) published on May 8 a final rule to revise and update use patterns and data requirements for antimicrobial pesticides. Though the new rule is the first revision to EPA data requirements for antimicrobial pesticide registrations since 1984,   remaining inconsistencies among data submissions and data gaps, these new rules are a step in the right direction when it comes to regulating antimicrobial pesticides, considering the proliferation of consumer products that contain these chemicals. However, even with these new rules in place, certain antimicrobial pesticides that are already in consumer products, such as triclosan, will  still present serious hazards for  human and environmental health. More than 5,000 antimicrobial products are currently registered with EPA. Initially designed for hospitals and clinics, many antimicrobial pesticides are found in products ranging from household cleaners to mattresses and bedding, cosmetics, toys, toothpaste and even chopsticks. Antibacterial products are being marketed to the health conscious without firm evidence of real benefits and amid growing concern about unintended externalities. One prime example of this is triclosan, which is formulated into hundreds of personal care products, toys and textiles. Studies show that triclosan is an endocrine disruptor, […]

(Beyond Pesticides, May 7, 2013) After 40 years of delay, the Associated Press reports that the U.S. Food and Drug Administration (FDA) will rule on the safety of the antibacterial chemical triclosan this year. Triclosan is present in hundreds of consumer products ranging from antibacterial soaps, deodorants, toothpastes, cosmetics, fabrics, toys, and other household and personal care products, appearing in some of these products in a formulation known as Microban. The agency’s review comes amid growing pressure from politicians and consumer advocates concerning the safety of this chemical in terms of both human health and the wider environment. In 1972, Congress required FDA to set guidelines for many common antibacterial chemicals found in over-the-counter soaps and scrubs. FDA published tentative guidelines for chemicals used in liquid hand soaps and washes by 1978, stating triclosan was “not generally recognized as safe and effective.” This was due to a lack of scientific research demonstrating the chemical’s safety and effectiveness. FDA published several draft guidelines over the years but never finalized the results. This has allowed companies to keep the chemical in their products. Last summer, FDA said its triclosan review would be completed by the end of 2012. The agency then pushed […]

(Beyond Pesticides, March 6, 2013) The Minnesota Pollution Control Agency announced on March 3rd that state agencies have been ordered by Governor Mark Dayton to stop buying products that contain triclosan, a synthetic, broad-spectrum antimicrobial agent that has become ubiquitous in consumer products ranging from face-washes to fabrics. This ban, which will go into effect in June, comes as the debate over the efficacy and necessity of triclosan intensifies in the Minnesota State legislature. A bill banning triclosan’s use outside of medical settings is expected to be introduced this week, and the legislature conducted a hearing Tuesday on the possible human health and environmental consequences of the chemical. The state government, about 100 school districts, and local governments together currently buy about $1 million worth of cleaning products annually through joint purchasing contracts. Many of these products contain triclosan, but the U.S. Food and Drug Administration concluded in 2010 that products containing triclosan are no more effective than plain old-fashioned soap and water. “There are alternatives, and they are at the same price,” said Cathy Moeger, sustainability manager for the Minnesota’s Pollution Control Agency. “If it has an environmental benefit, why not do it?” Triclosan has been used for over […]

(Beyond Pesticides, January 29, 2013) A new study has discovered the anti-bacterial chemical triclosan and several of its toxic derivatives in sediment samples taken from freshwater lakes. Research published in the journal Environmental Science and Technology reveals the chemical to be present in increasing concentrations since it was first invented in the 1960’s. The results of this study put increased pressure on lawmakers and cosmetic companies to remove this chemical from consumer products. Beyond Pesticides and other groups, which have petitioned the U.S. Food and Drug Administration (FDA) and the U.S. Environmental Protection Agency (EPA) to remove triclosan from a vast array of consumer products, continues to urge cosmetic companies to take action on the chemical in the face of inadequate regulation to protect human health and the environment. Scientists tested  eight sediment samples from freshwater lakes across Minnesota, including Lake Superior. Bill Arnold, Ph.D.,  co-author of the study and professor at University of Minnesota notes, “We found that in all the lakes there’s triclosan in the sediment, and in general, the concentration increased from when triclosan was invented in 1964 to present day. And we also found there are seven other compounds that are derivatives or degradation products of […]

(Beyond Pesticides, January 4, 2013) On December 31, 2012, the U.S. Environmental Protection Agency (EPA) proposed to clarify its labeling requirement for disclosure of all active and inert ingredients in “minimum risk pesticide products,” exempt from registration under Section 25 (b) of the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA). The rule (77 FR 250) reorganizes the list of eligible active and inert ingredients by adding identifiers that will clarify for the public, and more importantly for federal and state inspectors, which ingredients are permitted in minimum risk pesticide products. The modification would require labels to use common chemical names in the list of ingredients as well as the contact information for the manufacturer. The lack of clarity on minimum risk pesticide product labels in the past has made it difficult for enforcement officials who must use their own judgment on the applicability of vague descriptors such as cedar leaf oil and cedar wood oil, which are exempt under the current listing of “Cedar Oil” under CFR Section 152.25. While EPA has attempted to improve labeling clarity of minimum risk pesticide products by updating its website, stakeholders have found the measure insufficient. Regulatory Background Currently, EPA is empowered under FIFRA […]

(Beyond Pesticides, November 20, 2012) Thanksgiving offers an opportunity for family and friends to eat, drink and be thankful for the bounty of the organic harvest. Unfortunately, there are a host of pesticides, genetically engineered materials, and others in conventional Thanksgiving foods that not only impact human health, but threaten the environment. Read below for some easy tips and suggestions for a healthful Thanksgiving day feast. Organic, free-range, and local turkeys The turkey is the symbol of a traditional Thanksgiving meal. However, turkeys are often fed grains treated with pesticides, medicated with antibiotics, and engorged with steroids and hormones. Additionally, turkeys are often fed an inorganic arsenic, a known carcinogen, which is used to promote growth and for pigmentation. In order to avoid all these, your best bet is to invest in an organic free-range turkey (pictured right), which is free of hormones, steroids or antibiotics. Want to forgo the turkey altogether? Be sure to choose an organic meatless option. Avoid Genetically Engineered Food: Go Organic There are additionally, a number of Thanksgiving products that probably contain genetically-engineered (GE) ingredients (although the formulations are often considered proprietary trade secrets). According to GMO Inside, some common GE foods used during Thanksgiving […]

(Beyond Pesticides, October 9, 2012) Sewage sludge is big business in Channahon, IL, but many residents who live near fields treated with the fertilizer believe they’re the ones paying the price. Farms in the area began applying the “biosolids” in 2010, and residents say that’s when their health issues began, according to Morris Daily Herald. Biosolids, otherwise known as sewage sludge, are composed of dried microbes previously used to process wastewater in treatment plants. The material is increasingly being used in conventional agriculture, but its application is explicitly forbidden in organic production. This is because the sludge can contain high concentrations of toxic contaminants, such as pesticides, detergents, estrogenic hormones, antibiotics, dioxins, PCBs, flame retardants, and heavy metals. Past research gives credence to Channahon residents’ claims of adverse health effects as a result of living near sludge coated fields. A 2002 study revealed the material to be associated with an increased prevalence of Staphylococcus aureus infections, a condition known to cause skin rashes and respiratory problems, for people located in close proximity to biosolid application sites. “What they are doing is making a toxic dump of our area. It’s disgusting,” said Channahon resident Pat Budd in an interview with Kris […]

(Beyond Pesticides, August 17, 2012) Part of an increasing trend, health care and cosmetics giant Johnson and Johnson has announced that it will soon begin phasing out a number of potentially dangerous chemicals from its personal care brands, including the antibacterial triclosan. Beyond Pesticides and other groups, which have petitioned the U.S. Food and Drug Administration (FDA) and the U.S. Environmental Protection Agency (EPA) to remove triclosan from a vast array of consumer products, have urged companies like Johnson and Johnson to take action on the pesticide in the face of inadequate regulation to protect human health and the environment. Along with other chemicals such as formaldehyde and 1,4 dioxane, the company cites consumer concern over the safety of triclosan as among its reasons for the alteration in its products. While the company downplayed any need for concern over the safety of triclosan, it also hinted that it was uncomfortable with growing body of science linking triclosan to a number of health concerns. The phase out is scheduled to be complete by the end of 2015. On a website the company developed specifically regarding the chemical phase out, it stated, in part, “In recent years, some questions have been raised […]

(Beyond Pesticides, August 16, 2012) The antibacterial chemical triclosan, found in popular personal care products such as Colgate ® Total toothpaste and Dial ® Liquid Hand Soap, hinders muscle contractions at a cellular level, slows swimming in fish, and reduces muscular strength in mice, according to scientists at the University of California (UC) Davis, and the University of Colorado. UC Davis’s press release explains that the chemical’s effects are so striking that the study “provides strong evidence that triclosan could have effects on animal and human health at current levels of exposure.” The study, “Triclosan impairs excitation—contraction coupling and Ca2+ dynamics in striated muscle,” published in the Proceedings of the National Academy of Sciences, enlarges a growing body of work linking triclosan to human and environmental health issues. In “test tube” experiments, triclosan impairs the ability of isolated heart muscle cells and skeletal muscle fibers to contract. Specifically, researchers evaluated the effects of triclosan on molecular channels in muscle cells that control the flow of calcium ions, creating muscle contractions. Normally, electrical stimulation (“excitation”) of isolated muscle fibers under experimental conditions evokes a muscle contraction, a phenomenon known as “excitation-contraction coupling” (ECC), the fundamental basis of any muscle movement, including […]

(Beyond Pesticides, July 18, 2012) Just as the U.S. Environmental Protection Agency (EPA) opened the federal docket for the registration review of nanosilver, Rice University researchers settled a long-standing controversy over the mechanism by which silver nanoparticles, the most widely used nanomaterial in the world, kill bacteria. The researchers found that the silver ions, rather than the silver particles, have antimicrobial effects on bacteria. However, their work comes with a warning; low doses of nanosilver can make bacteria stronger and more resistant. Silver nanoparticles are used just about everywhere, including in cosmetics, socks, food containers, detergents, sprays and a wide range of other products to stop the spread of germs. Researchers have debated the mechanisms by which nanosilver particles exert toxicity to bacteria and other organisms. They have long known that silver ions, which flow from nanoparticles when oxidized, are deadly to bacteria. In the study, “Negligible Particle-Specific Antibacterial Activity of Silver Nanoparticles,” published in NanoLetters, the researchers explain that the nanoparticles are practically benign in the presence of microbes. But when in soluble ionic form, that is, when activated via oxidation, nanosilver becomes toxic to bacteria. The research team decided to test nanoparticle toxicity in an anaerobic environment —with […]

(Beyond Pesticides, May 18, 2012) A groundbreaking report documents the potential for antibiotics used in the production of corn-based ethanol to contribute to the emergence of antibiotic-resistant bacteria. The potential for the misuse of antibiotics in industrial agriculture to spawn antibiotic-resistant bacteria has long been recognized, but the new report sheds light on a dimension of the problem that has largely gone unnoticed. Entitled Bugs in the System and published by the Institute for Agriculture and Trade Policy (IATP), the report establishes that antibiotic residues found in the by-products of ethanol production are strong enough to promote resistance in pathogenic bacteria when those by-products are fed to livestock. The report points out that for life-threatening bacterial infections in humans, there are no alternatives to antibiotics and that once resistant bacteria develop from antibiotic misuse, we have forever lost an effective treatment for the illness. For at least two decades, antibiotics have been an important component of the fermentation process used to make ethanol. Corn ethanol is the product of starches broken down into sugars by yeast. The sugars are then fermented and distilled, all of which happens in tanks full of warm water, a perfect environment not only for yeast […]

(Beyond Pesticides, May 8, 2012) On May 4, the Vermont House of Representatives voted 103-36 to give final passage to legislation that will make Vermont the first state in the nation to ban the practice of hydraulic fracturing for natural gas. Fracking is a method of extracting natural gas from deep in the ground by injecting a mixture of water, sand and toxic chemicals ””including biocides”” under high pressure into dense rock formations such as shale, in order to crack the rock and release the gas. “The Vermont Legislature deserves tremendous praise for having the courage to stand up to all of the lobbying, the full page ads, and the legal threats of the oil and gas industry,” said Paul Burns, executive director of the Vermont Public Interest Research Group. “This is a shot that will be heard, if not around the world then at least around the country.” According to a minority staff report released last year by the U.S. House of Representatives Committee on Energy and Commerce, more than 650 commonly used fracking products contain chemicals that are “known or possible human carcinogens, regulated under the Safe Drinking Water Act, or listed as hazardous air pollutants.” In its […]

(Beyond Pesticides, May 3, 2012) Scientists at the University of Maryland School of Dentistry have created the first cavity-filling composite using controversial nanotechnology that will both kill bacteria and regenerate tooth structure. The antibacterial component to the new fillings will be a base of quaternary ammonium and silver nanoparticles, along with a high pH. Researchers say that the nanocomposite filling will be able to neutralize residual bacteria that dentists are unable to remove after a dentist drills out a decayed tooth. Though nanotechnology is often heralded for its promising applications, scientists and researchers are becoming increasingly concerned with the lack of regulatory oversight and the potential impacts of these particles on public health and the environment. In addition to testing in animal teeth, the products will be tested in human volunteers in collaboration with the Federal University of Ceara in Brazil. So far, the products have been laboratory tested using biofilms from saliva of volunteers. In 2011, the U.S. Environmental Protection Agency (EPA) took several actions to limit human testing with strict guidelines. Human testing was initially stopped by a moratorium in 1998, but later reintroduced in 2003 by a court ruling on a pesticide industry suit. A silver nanoparticle […]

(Beyond Pesticides, April 30, 2012) The U.S. Environmental Protection Agency (EPA) has ordered the manufacturer of an antimicrobial disinfectant intended for use in hospitals to remove the product from sale. Citing a violation of the Federal Insecticide, Fungicide, Rodenticide Act (FIFRA), EPA issued a Stop Sale, Use, or Removal Order (SSURO) on April 16 to Zep, Inc. for its product “ZEP Formula 165.” EPA determined through its Antimicrobial Testing Program (ATP) that this antimicrobial disinfectant was, contrary to label claims, ineffective against the debilitating and potentially fatal human pathogen Mycobacterium Tuberculosis (pictured right). EPA identified multiple FIFRA labeling violations after analyzing a sample of the product, which it collected on May 26, 2011. FIFRA requires a pesticide labeled as an antimicrobial pesticide to “disinfect, sanitize, reduce or mitigate growth or development of microbiological organisms.” When laboratory analysis established that “ZEP Formula 165” used in accordance with the label instructions was not effective against Mycobacterium Tuberculosis, the false label claim constituted a FIFRA violation. EPA cited the manufacturer for a second violation after determining that the sample it collected contained an amount of the active ingredient Para-tertiary-amyl phenyl that exceeded the upper certified limit that was established for that ingredient in […]

(Beyond Pesticides, April 19, 2012) The University of Texas (UT) Student Government body unanimously passed a resolution last month to ban soap containing the toxic antibacterial chemical triclosan throughout campus. If the ban is accepted by the University administration, UT would be the first university in the country to take an official stance against one of the most prevalent and dangerous antibacterial products available. Triclosan, which can be found in many personal care products, has been linked to numerous human and environmental health effects. Recently the Canadian government declared triclosan as an environmental toxin, proposing regulations to restrict its use. Student Government (SG) representative and public affairs graduate student Robert Love, who initiated the ban, says that officials in several different campus purchasing departments are open to phasing out antibacterial soap. For financial and environmental reasons, the University phased out the use of the triclosan-containing soap in restrooms across campus in 2008; however, it is still being used in other places on campus. According to a university spokeswoman, a campus-wide phase out would require an official decision. “What we’re saying is we need an outright ban on campus, and we need to kind of make a bold statement,” said urban […]

(Beyond Pesticides, March 28, 2012) The Canadian government is set to declare the bacteria killer found in many toothpastes, mouthwashes and anti-bacterial soaps as toxic to the environment, a move which could see the use of the chemical curtailed sharply in Canada. Triclosan, the chemical in question, has been linked to numerous human and environmental health effects and has been the subject of petitions calling for its ban from consumer products. Health Canada has been probing the effects of triclosan on the body’s endocrine system and whether the antibacterial agent contributes to the development of antibiotic resistance along with the effect of widespread use on the environment. The draft risk assessment finds triclosan to be toxic to the environment but but does not find enough evidence to say it is hazardous to human health. The formal proposal to list the chemical as toxic to the environment will be published Friday. Triclosan exploded on to the marketplace in hundreds of consumer products ranging from antibacterial soaps, deodorants, toothpastes, cosmetics, fabrics, toys, and other household and personal care products. While antibacterial products are marketed as agents that protect and safeguard against potential harmful bacteria, studies conclude that antibacterial soaps show no health […]

(Beyond Pesticides, January 27, 2012) The National Research Council (NRC) released a report on Wednesday, finding that, despite extensive investment in nanotechnology and increasing commercialization over the last decade, insufficient understanding remains about the environmental, health, and safety aspects of nanomaterials. Just one day later, a lawsuit was filed in court by the Natural Resources Defense Council challenging approval by the U.S. Environmental Protection Agency (EPA) of a particular nanomaterial, nanosilver, citing the lack of scientific grounding. The suit, filed in the 9th U.S. Circuit Court of Appeals in San Francisco, seeks to block EPA from allowing nanosilver on the market without legally-required data about its suspected harmful effects on humans and wildlife. Starting in December 2011, EPA allowed the company HeiQ Materials to sell nanosilver used in fabrics for the next four years as the company generates the required data on toxicity to human health and aquatic organisms. According to the NRC report, without a coordinated research plan to help guide efforts to manage and avoid potential risks, the future of safe and sustainable nanotechnology is uncertain. The report presents a strategic approach for developing research and a scientific infrastructure needed to address potential health and environmental risks of […]

(Beyond Pesticides, December 21, 2011) The Swedish Chemicals Agency (Kemi) has published an analysis of the antibacterial chemicals triclosan, triclocarban and silver textile products that finds these antibacterial chemicals to significantly leach out of treated products after washing. In the case of triclosan and triclocarban, about half or more of the original content is washed out after ten washes. The report questions the necessity of antibacterial textiles and highlights concerns about the increasing use of antibacterial products, and the hazards these substances pose to waterways and human health. The antibacterial treatment is usually marketed and labeled with the stated purpose of preventing odors in textiles. The Swedish Chemicals Agency analyzed 30 textile articles (English summary on page 7), specifically three antibacterial agents incorporated into the fabric, including silver (nanosilver), triclosan, and triclocarban. Concentrations of the antibacterials in fabrics fell after washing. In the case of triclosan and triclocarban, about half or more of the original content was washed out after ten washes. In the case of silver, the original concentration and washed-out content varied to a large extent. After ten washes, 10-98 percent of the silver had been washed out of the textiles. After three washes, half of the silver […]

(Beyond Pesticides, December 13, 2011) Despite opposition from Lake Tahoe water providers and environmental groups, the Lahontan Regional Water Quality Control Board (LRWQCB) voted last week to allow the use of pesticides to control invasive species like Asian clams and the underwater plants Eurasian watermilfoil and curly leaf pondweed. For years, the rules regulating pesticide use in Lake Tahoe limited their use to below detectable levels, creating a “de facto prohibition,” explains Mary Fiore-Wagner, an environmental scientist with the LRWQCB. The decision to allow the use of pesticides in the lake now rests in the hands of California State Water Resources Control Board. Carl Young, interim executive director of the League to Save Lake Tahoe/Keep Tahoe Blue, told the Associated Press that the plan poses a threat to the lake’s water quality and the public’s health, and he’s concerned visitors and residents could be exposed to pesticides through Tahoe’s fish and drinking water. The League is urging regulators to use non-chemical methods, including bottom barriers that involve the use of large mats to starve the species of sunlight and oxygen. The aquatic plants can be managed through mechanical harvesting. The U.S. Army Corps of Engineers estimates economic impacts from introductions […]