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Daily News Blog

Archive for the 'Antibacterial' Category


05
Jan

Public Comment Needed on Ban Triclosan Petition by Feb.7, 2011

(Beyond Pesticides, January 5, 2011) Your voice is critical in generating public comments on a petition, published in the Federal Register, to ban the antibacterial chemical triclosan. As you may know, this chemical, now found in the bodies of 75% of the U.S. population, is linked to endocrine disruption, bacterial and antibiotic resistance, dioxin contamination, and contaminated fish and biosolids. We have five more weeks —until February 7, 2011— to let EPA know that triclosan must be banned to protect the public, workers and the environment. Click here for the document you can use to publicize the public comment period on Ban Triclosan petition or email [email protected] for the word version. EPA published in the Federal Register a petition, filed by 82 public health and environmental groups, to ban the hazardous antimicrobial/antibacterial pesticide triclosan for non-medical use. The chemical is found in products from clothing to soaps. The Federal Register notice (Petition for a Ban on Triclosan, 75 FR 76461, December 8, 2010) announces a public comment period until February 7, 2011 on the need to ban triclosan under numerous federal statutes from pesticides, clean water, safe drinking water, to endangered species. SUGGESTED ACTION AND SAMPLE PUBLIC COMMENT: Please send […]

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10
Dec

EPA Publishes Petition to Ban Triclosan, Opens Public Comment

(Beyond Pesticides, December 10, 2010) Announcing a 60-day public comment period, the U.S. Environmental Protection Agency (EPA) yesterday published in the Federal Register a petition filed by 82 public health and environmental groups, led by Beyond Pesticides and Food and Water Watch, to ban the controversial antimicrobial/antibacterial pesticide triclosan, found in products from clothing to soaps, for non-medical use. The Federal Register notice (Petition for a Ban on Triclosan, 75 FR 76461, December 8, 2010) invites the public to comment until February 7, 2011 on the need to ban triclosan under numerous federal statutes. The petition, filed on January 14, 2010, identifies pervasive and widespread use of triclosan and a failure of EPA to: (i) address the impacts posed by triclosan’s degradation products on human health and the environment, (ii) conduct separate assessment for triclosan residues in contaminated drinking water and food, and (iii) evaluate concerns related to antibacterial resistance and endocrine disruption. The petition cites violations of numerous environmental statutes, including laws on pesticide registration, the Clean Water Act, Safe Drinking Water Act, and Endangered Species Act. It also documents that triclosan is no more effective than regular soap and water in removing germs and therefore creates an unnecessary […]

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30
Nov

Triclosan Linked to Increased Risk of Allergies, BPA Linked to Immune Problems

(Beyond Pesticides, November 30, 2010) Young people who are overexposed to antibacterial soaps containing triclosan may suffer more allergies, and exposure to higher levels of Bisphenol A among adults may negatively influence the immune system, a new University of Michigan School of Public Health study finds. Triclosan is a chemical compound widely used in products such as antibacterial soaps, toothpaste, pens, diaper bags and medical devices. Bisphenol A (BPA) is found in many plastics and, for example, as a protective lining in food cans. Both of these chemicals are in a class of environmental toxicants called endocrine-disrupting compounds (EDCs), which are believed to negatively impact human health by mimicking or affecting hormones. Using data from the 2003-2006 National Health and Nutrition Examination Survey (NHANES), U-M researchers compared urinary BPA and triclosan with cytomegalovirus (CMV) antibody levels and diagnosis of allergies or hay fever in a sample of U.S. adults and children over age 6. Allergy and hay fever diagnosis and CMV antibodies were used as two separate markers of immune alterations. The study, “The Impact of Bisphenol A and Triclosan on Immune Parameters in the US Population, NHANES 2003-2006,” was published online November 30, 2010 in the journal Environmental Health […]

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19
Nov

Congresswoman Urges FDA to Ban Triclosan

(Beyond Pesticides, November 19, 2010) House Rules Committee Chairwoman Louise M. Slaughter and two colleagues asked the U.S. Food and Drug Administration (FDA) to ban triclosan due to the hazards that this chemical poses, including antibiotic resistance and potentially leading to higher health care costs, citing both Beyond Pesticides and Food and Water Watch along with other environmental groups. Rep. Slaughter, joined by Reps. Raul Grijalva and Betty McCollum, delivered the letter Tuesday, November 16, urging FDA to take immediate steps to stop the unnecessary exposure to this chemical in the U.S. Rep. Slaughter concludes that “triclosan is clearly a threat to our health.” Among the reasons for her conclusion, she lists: ”¢ The presence of triclosan in the human body and its impact on our “body burden;” ”¢ Bacterial resistance to antibiotic medications and antibacterial cleaners; ”¢ The potential for endocrine disruption as a result of triclosan bioaccumulation in the body; ”¢ Wastewater contamination; ”¢ The threat of destroying ecological balance, and; ”¢ The fact that triclosan is no more effective than soap and water. The scientific literature has extensivelly linked the non-medical uses of triclosan to many health and environmental hazards. Triclosan is an endocrine disruptor and has […]

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15
Nov

Triclosan in Waterways Harmful to Important Microorganisms

(Beyond Pesticides, November 15, 2010) A new study suggests the widespread use of the antimicrobial triclosan may be inhibiting the aquatic bacteria and algae needed for a healthy ecosystem. Triclosan is an antibacterial compound found in a wide variety of household products including soaps, cosmetics, toothpaste, flooring, textiles, and even children’s toys. According to the study entitled “Triclosan persistence through wastewater treatment plants and its potential toxic effects on river biofilms,” when triclosan finds its way into rivers and streams it can inhibit photosynthesis in algae and kill bacteria. The study examined a group of algae known as diatoms. Through photosynthesis, diatoms produce food as well as oxygen needed for other organisms. Diatoms produce an estimated 80 percent of the oxygen in our atmosphere making them essential to life on earth. When introduced to the market in 1972, triclosan was confined to hospital and health care settings. Aided by the false public perception that antibacterial products are best to protect and safeguard against potential harmful bacteria, triclosan has since exploded in the marketplace in hundreds of consumer products ranging from antibacterial soaps, deodorants, toothpastes, cosmetics, fabrics, toys, and other household and personal care products. Due to the prevalence of this […]

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10
Nov

Triclosan Exposure Raises Pregnancy Concerns

(Beyond Pesticides, November 10, 2010) A University of Florida, Gainesville study reports that the antibacterial pesticide triclosan, found in toothpaste, soaps, toys and clothing, interferes with estrogen metabolism in women and can disrupt a vital enzyme during pregnancy. These recent findings raise concerns about triclosan’s possible effects on fetal growth and development. This study is just one of an emerging body of science which supports triclosan as an endocrine disruptor and should be eliminated from consumer products. The study, which was published in the November print issue of the journal Environment International, examines the effect of triclosan on a placental enzyme, called estrogen sulfotransferase. Triclosan is known to inhibit sulfonation of phenolic xenobiotics and is structurally related to other known inhibitors of estrogen sulfotransferase, such as polychlorobiphenylols (PCBs). During pregnancy, the placenta is an important source of estrogen, which is needed for normal fetal development and successful parturition (childbirth), and estrogen sulfotransferase is thought to play an important role in regulation of estrogen availability. Estrogen is a key hormone during pregnancy and controls the way a baby develops many key organs like the brain. Triclosan was found to be a very potent inhibitor of both estradiol and estrone sulfonation. The […]

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29
Sep

Antibacterial Soap Hit with Class Action Suit for False Anti-Germ Claims

(Beyond Pesticides, September 29, 2010) A class action complaint claims Dial Corp. defrauds consumers about its Dial Complete soap by falsely claiming that it ‘kills 99.99% of germs,’ when in fact the product provides no benefit over washing with regular soap and water. The suit states that Dial Corp.’s claims are deceptive and misleading, designed solely to cause consumers to buy the product. Dial Complete contains triclosan, a registered pesticide, which is linked to numerous adverse effects including hormone disruption and water contamination. The suit wants Dial Corp. enjoined from continuing its deceptive advertising, disgorgement and damages for consumer fraud and deceptive business practices. The plaintiff, David Walls, in his suit states there are no reliable studies that show Dial Complete lives up to these claims. His complaint states: “Through its extensive and comprehensive nationwide marketing campaign, defendant claims that Dial Complete ‘kills 99.99% of germs’, is the ‘#1 Doctor Recommended’ brand of antibacterial liquid hand wash and ‘kills more germs than any other liquid hand soap’, when in actuality, it does not, a fact which Dial knew and purposely misrepresented and failed to disclose to consumers. To this day, Dial has taken no meaningful steps to clear up consumer […]

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24
Sep

Send Your Comments to EPA as Scientists Examine the Fate of Silver Nanoparticle Waste

(Beyond Pesticides, September 24, 2010) Researchers from Virginia Tech discovered, for the first time, a way to detect nanosilver particles in the environment, finding that the particles leaching from consumer products can transform into silver sulfide in sewer sludge. Despite their widespread use, scientists still know very little about how nanomaterials move from consumer manufactured products into the environment and what impact they might have. These findings provide new information about the life cycle of silver nanoparticles, which are used in a number of consumer products as antimicrobial agents, including cosmetics, sunscreens, sporting goods, clothing, electronics, baby and infant products, food, and food packaging. Previous studies have shown that the particles, which are between one and 100 nanometers in size and smaller than many viruses, can enter the environment through wastewater, where they can accumulate in biosolids at wastewater treatment plants. These biosolids, also known as sewage sludge, are often sold to consumers as fertilizer, despite the fact that they can contain toxic contaminants, including another antibacterial, triclosan, which was recently found to persist in the environment. Nanosized particles can be released from impregnated materials via washing or or as a result of sweating, posing unknown adverse effects to humans […]

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23
Sep

Triclosan Persists at Low-Levels in the Environment for Long Periods of Time

(Beyond Pesticides, September 23, 2010) A study by U.S. Department of Agriculture (USDA) scientists and cooperators provides new details about how fertilizing soils with biosolids also introduces triclosan, an antibacterial agent in soaps and other cleaning supplies, into the environment. Results show that triclosan in biosolids is only slowly degraded and persists at low levels in the environment for long periods of time. Biosolids are illegal for use in organic agriculture. For this study, entitled “Fate of triclosan in agricultural soils after biosolid applications” and published in Chemosphere, Agricultural Research Service (ARS), chemist Clifford Rice, of the ARS Environmental Management and Byproduct Utilization Laboratory in Beltsville, Md., and his partners determined that triclosan levels in Class B biosolids from a Mid-Atlantic wastewater treatment plant averaged around 15.5 milligrams per kilogram. They collected surface soil samples from 26 farms in northern Virginia, mostly from pastures. Some fields had never been amended with biosolids and others had been amended with one to four applications of biosolids within the previous 9 months to 13 years. Most of the biosolid amendments came from the wastewater treatment plant in the study. Generally, conventional chemical-intensive farmers add “Class B” biosolids, also known as treated wastewater solids, […]

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03
Sep

Nanosilver Particles Can Stop Sperm Cells from Growing

(Beyond Pesticides, September 3, 2010) New research shows that silver nanomaterials, which are used in a number of consumer products as antimicrobial agents, can interrupt important cell signaling within male reproductive sperm cells, causing them to stop growing. In previous studies, scientists reported how smaller-sized silver nanoparticles — in the 10 – 25 nanometer range — decrease the growth of male stem cells when they are exposed at concentrations greater than 10 micrograms per milliliter (μg/ml). This new study, on the other hand, is the first to identify how the silver nanoparticles stop the sperm stem cells from growing, with the biggest effects from the smallest-sized nanoparticles tested. Like many other studies on the effects of nanotechnology, this study raises important questions about the potential hazards to human health due to the prolific use of silver nanoparticles in the market. Researchers tested the effects of different sizes, concentrations and coatings of silver nanoparticles on cell growth of mouse sperm cells. They compared silver nanoparticles coated with either hydrocarbons — at 15 nm, 25 nm and 80 nm diameters — or sugars — at 10 nm, 25 – 30 nm and 80 nm diameter. Exposure to the smaller sized particles led […]

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13
Aug

Antimicrobial Nanoparticles in Soil Can Harm Plants

(Beyond Pesticides, August 13, 2010) A new study finds that silver nanoparticles, which are used in consumer products and in hospitals for their antimicrobial properties, can harm plant life when it enters into the natural environment. Where silver nanoparticles are present in the soil, plant species are reduced by 22 percent, with an additional 20 percent reduction of microbial biomass, as compared to those plants without the presence of nanoparticles. Researchers applied biosolids with silver nanoparticles into the soil of plants growing in intermediate sized rubber tubs, using a concentration within the range that the U.S. Environmental Protection Agency (EPA) has reported finding in biosolids from a recent survey. “There have been a lot of lab studies looking at silver nanoparticles showing that they are highly toxic to bacteria, fungi, other microorganisms,” explained Ben Colman, PhD to Scientific American. Dr. Coleman is a postdoctoral researcher at Duke University who led the study. “Most of these studies have been conducted in very simple lab settings, [with] one species of bacteria””often the “lab rat” of the bacteria world, E [scherichia]. coli ””[in] a test tube with very simple media and nanoparticles. So we wanted to move beyond this because it’s really hard […]

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09
Aug

New Data Shows Increased Triclosan Exposure

(Beyond Pesticides, August 9, 2010) Two separate findings that showcase increased exposure and potential for exposure in humans to the toxic chemical triclosan add to the mounting evidence that the non-medical use of this chemical should be banned. Newly released data from the Centers for Disease Control and Prevention (CDC) finds that levels of triclosan in humans have increased by 50% since 2004. Moreover, a study by the University of Toledo shows that triclosan and triclocarbon, a similar compound, can enter the food chain through use of contaminated water or fertilizer on agricultural crops. CDC’s updated National Report on Human Exposure to Environmental Chemicals finds that the 50% increase in levels of triclosan is across all demographics in the U.S. population. Data was collected on the concentration of triclosan in urine. Affluent people and those over the age of 20 have the highest concentrations of triclosan in their urine. The study released by the University of Toledo, “Uptake of Pharmaceutical and Personal Care Products by Soybean Plants from Soils Applied with Biosolids and Irrigated with Contaminated Water,” examines the potential for crops to take up contaminants such as triclosan from water or fertilizer. Conventional crops are often fertilized with sewage […]

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30
Jul

Lawsuit Seeks Timeline for FDA Action on Antibacterial Pesticide Triclosan

(Beyond Pesticides, July 30, 2010) Adding to a campaign that Beyond Pesticides launched in 2004 to alert the public and pressure government to restrict the highly toxic antibacterial chemical triclosan -commonly found in antibacterial soaps and household and consumer products, the Natural Resources Defense Council (NRDC) filed a lawsuit earlier this week against the Food and Drug Administration (FDA) for failing to issue a final rule regulating the chemical. The lawsuit follows on the heels of two petitions filed by Beyond Pesticides and Food and Water Watch in 2009 and 2010 with FDA and the U.S. Environmental Protection Agency (EPA), respectively, to ban the chemical. Because of the widespread poisoning and environmental contamination caused by triclosan, the petitions cite numerous violations of statutory duties under the Federal Food, Drug and Cosmetics Act, Federal Insecticide, Fungicide, and Rodenticide Act, Clean Water Act, Safe Drinking Water Act, and Endangered Species Act. The NRDC lawsuit adds yet another dimension to the legal violations involving agency malfeasance on triclosan by asking the court to impose a strict deadline for FDA to finalize a proposed rule that has been pending for 32 years and could ban many uses of triclosan and its chemical cousin triclocarban. […]

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23
Jul

Use of Household Cleaners Linked to Increased Risk of Breast Cancer

(Beyond Pesticides, July 23, 2010) A new study published in BioMed’s online journal, Environmental Health, links endocrine disrupting pesticides and other chemicals in household cleaning products to an elevated risk of breast cancer. Researchers at the Silent Spring Institute in Newton, MA and Boston University found that women who use household cleaners more often have double the risk of breast cancer, compared to women who use household cleaners less frequently. The study includes over 1,500 women selected from Cape Cod, MA and found a correlation between cases of breast cancer and the number of women who reported using household cleaners, particularly solid, slow-release air fresheners when used more than seven times a year, and mold removers when used more than once a week. The antimicrobials, phthalates and alkylphenolic surfactants often found in mold and mildew products are associated with various health and environmental issues. The antimicrobial triclosan for example, can cause skin irritation, allergy susceptibility, bacterial and compounded antibiotic resistance, and dioxin that jeopardizes fragile aquatic ecosystems. The study highlights methylene chloride (in some fabric cleaners), nitrobenzene (soaps, polishes), perfluorinated compounds (stainresistant, waterproof coatings), phthalates (surfactants), alkylphenols (solvents), parabens (preservatives), triclosan, and polycyclic musks (fragrance) as ingredients of concern. Past […]

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26
May

Ask Your Local Retailers to Stop Selling Triclosan Products

(Beyond Pesticides, May 26, 2010) Beyond Pesticides has drafted sample text (see below), and we need your help to deliver a letter to your local supermarket, cosmetics store or co-op asking them to stop selling products that contain triclosan. Hundreds of products containing the antibacterial chemical triclosan decorate the shelves of retail stores across the country. From hand soap and toothpastes, to toys and yoga mats, triclosan is everywhere. Product labels will read “triclosan,” “triclocarban” (a related compound found in bar soaps) or “Microban” (a formulation of triclosan used in plastics and fabrics). It is time to take action and demand that this endocrine disrupting chemical is removed from the products we use and love. When consumers demand more for their health and well-being, retailers and manufacturers of triclosan products must listen. Triclosan, which has a similar chemical structure as dioxin, is linked to various health and environmental problems. It is associated with skin irritation, has been shown to interfere with the body’s hormones, and has been linked to an increased risk of developing respiratory illness, or asthma, and cancer, as well as subtle effects on learning ability. Because the chemical goes down the drain, it wreaks havoc with the […]

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20
May

Dioxins from Triclosan Increasingly Found in Water

(Beyond Pesticides, May 20, 2010) Dioxins derived from the antibacterial agent triclosan account for an increasing proportion of total dioxins found in water: researchers at the University of Minnesota found that though levels of all other dioxins have dropped by 73-90% over the last thirty years, the levels of four different dioxins derived from triclosan have risen by 200-300%. The study, which was a collaborative effort between researchers at the University of Minnesota, Pace Analytical (Minneapolis), the Science Museum of Minnesota and Virginia Tech appears in the journal Environmental Science and Technology. Leading the research is the recent Ph.D. graduate in chemistry, Jeff Buth and supervisors William Arnold, a civil engineering professor, and his colleague Krostopher McNeill, all from University of Minnesota. Researchers looked at sediment core samples that contained pollution accumulation records from the past 50 years from Lake Pepin, a part of the Mississippi River 120 miles downstream from the Minneapolis-St. Paul metro area. The sediment samples were then analyzed for triclosan, the four dioxins that are derived from triclosan and the entire family of dioxin chemicals. In papers published in 2003 and 2009, Dr. Arnold and Dr. McNeill discovered that triclosan, when exposed to sunlight, generated a […]

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06
May

Triclosan Withdrawn as Food Contact Additive in Europe Following Action in U.S.

(Beyond Pesticides, May 6, 2010) The European Commission has announced that triclosan has been formally withdrawn from the European list for use as a food contact additive; however, plastic materials that are intended to come in contact with food and placed on the market before November 2010 may still be sold until November 2011. The decision follows the European Union’s 2009 regulations to impose limits on the amount of triclosan contained in cosmetics. Ciba, the Swiss-based company that is a subsidiary of BASF, announced last year that they had withdrawn the application of triclosan as a food contact additive so that they could instead focus their sales in the personal hygiene, health care and medical device sector. The company declared this to be a “strategic business decision” and declared that triclosan use as as an additive in plastics intended to come into contact with food was no longer “appropriate.” In the U.S. in 2009, Ciba requested a voluntarily cancellation of the registrations for the technical grade triclosan regulated by the U.S. Environmental Protection Agency (EPA) and incorporated into plastics and textiles. Ciba continues to market triclosan for medical and personal care products, which are regulated by the U.S. Food and […]

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09
Apr

FDA Acknowledges Adverse Effects of Triclosan, U.S. Rep Urges Ban

(Beyond Pesticides, April 9, 2010) U.S. Representative Edward J. Markey (D-Mass), Chairman of the Energy and Environment Subcommittee of the Energy and Commerce Committee, yesterday called for a ban on many applications of the antimicrobial chemical triclosan ””which is found in many consumer soaps and countless other products ranging from toys to lipstick. Rep. Markey called for the ban in conjunction with the release of correspondence from the Food and Drug Administration (FDA) and the Environmental Protection Agency (EPA) that raise serious concerns regarding the use of the chemical triclosan. In response to the FDA and EPA letters, Chairman Markey also announced plans to introduce legislation that will accelerate the evaluation and regulation of substances such as triclosan that may harm the human endocrine system. “Despite the fact that this chemical is found in everything from soaps to socks, there are many troubling questions about triclosan’s effectiveness and potentially harmful effects, especially for children,” said Chairman Markey. In January 2010, Chairman Markey sent letters of concern regarding triclosan to FDA and to EPA. In FDA’s response letter to Chairman Markey, the FDA stated that, “existing data raise valid concerns about the [health] effects of repetitive daily human exposure to these […]

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15
Jan

Over 75 Groups Petition EPA to Ban Triclosan Uses Tied to Widespread Contamination

(Beyond Pesticides, January 15, 2010) Yesterday, environmental and health groups petitioned the Environmental Protection Agency (EPA) to ban the use of the widely used antimicrobial pesticide triclosan, which is linked to endocrine disruption, cancer and antibiotic resistance and found in 75% of people tested in government biomonitoring studies. Over 75 groups, lead by Beyond Pesticides and Food and Water Watch, say EPA must act to stop the use of a chemical now commonly found in soaps, toothpaste, deordorants, cosmetics, clothing, and plastic, with a nearly $1 billion market and growing. In their petition, the groups cite numerous statutes under which they believe the government must act to stop non-medical uses of triclosan, including laws regulating pesticide registration, use and residues, clean and safe drinking water, and endangered species. “Given its widespread environmental contamination and public health risk, EPA has a responsibility to ban household triclosan use in a marketplace where safer alternatives are available to manage bacteria,” said Jay Feldman, executive director of Beyond Pesticides. “Scientific studies indicate that widespread use of triclosan causes a number of serious health and environmental problems,” said Wenonah Hauter, executive director of Food & Water Watch. “EPA needs to ban its use in non-medical […]

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14
Dec

Report Shows Overuse of Disinfectants Is Harmful

(Beyond Pesticides, December 14, 2009) A new report links disinfectant chemicals with chronic illnesses and conditions such as asthma, hormone imbalance, and immune system problems. The report, Disinfectant Overkill: How Too Clean May Be Hazardous to Our Health, was released by the national environmental health group Women’s Voices for the Earth (WVE), and cites more than 40 peer-reviewed reports and scientific studies that document the health impacts of chemicals found in household disinfectants. Chemicals reviewed in the report include chlorine bleach, ammonia, triclosan and triclocarban, ammonium quarternary compounds, and nano-silver. “Companies are working hard to convince consumers, and especially moms, that they need to regularly disinfect every surface in their homes to protect their families from illness. But that’s simply not true and it may not be healthy,” says WVE staff scientist and report author Alexandra Scranton. “We’re encouraging consumers to go back to basics for cleaning, with less of a focus on disinfection and more on non-toxic cleaners and a little elbow grease.” According to the Centers for Disease Control and Prevention (CDC), frequent hand washing with hot water and regular soap is the best way to prevent infection and illness. “Antimicrobial chemicals available in the home today were […]

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23
Oct

Samsung Fined For Antimicrobial Keyboard Claims

(Beyond Pesticides, October 23, 2009) The U.S. Environmental Protection Agency (EPA) fined Samsung for violating the federal pesticide law when it publicized that its keyboards, produced with nanosilver, were antimicrobial and inhibited germs and bacteria without registering its products with EPA. The claims made on the company’s labels and promotional material for netbook and notebook computer laptops would render the products pesticides, requiring registration by EPA. Dell also has keyboards treated with nanosilver for antimicrobial purposes which are registered with EPA. Nanosilver has been promoted for its antibacterial properties and is used in many products such as sporting goods, band-aids, clothing, baby and infant products, and food and food packaging. However, very little is known about where these particles end up when such products are put to use. Many consider silver to be more toxic than other metals when in nanoscale form and that these particles have a different toxicity mechanism compared to dissolved silver. Scientists have concluded that nanoparticles can pass easily into cells and affect cellular function, depending on their shape and size. Preliminary research with laboratory rats has found that silver nanoparticles can traverse into the brain, and can induce neuronal degeneration and necrosis (death of cells […]

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14
Oct

Conditions Affect Release of Nanosilver from Treated Products

(Beyond Pesticides, October 14, 2009) New research by scientists at the Swiss Federal Laboratories for Materials Testing and Research provides a first look at the behavior of nanosilver textiles under real-world washing conditions. This work builds on earlier studies conducted in water which show that nanosilver leaches from fabrics and textiles during washing to enter the environment. The study, “The Behavior of Silver Nanotextiles during Washing” published in Environmental Science and Technology, found that the total amount and form of silver (dissolved or particulate) that leaches during washing varies significantly depending on the product and the conditions. The goal was to determine the amount and the form of silver released during washing from nine fabrics with different ways of silver incorporation into or onto the fibers. The effect of pH, surfactants, and oxidizing agents was also evaluated. In the washing machine the majority of the nanosilver (at least 50% but mostly >75%) was released in the size fraction more than 450 nm, indicating the dominant role of mechanical stress. The researchers found that under typical washing conditions (pH 10—11, with high levels of surfactants), dissolved concentrations of silver were 10 times lower than at pH 7. However, when bleaching agents […]

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10
Sep

Studies Show Antiseptic Properties in Cinnamon Oil

(Beyond Pesticides, September 10, 2009) Some researchers are suggesting that sanitizers made with essential oil are a solution to harmful soaps with antibacterials. Cinnamon oil, according to many recent studies, has been shown to have strong antiseptic properties, without creating the problem of antibiotic-resistant bacteria. Many antibacterial products, such as those containing triclosan, work by killing some, but not all bacteria, which means that widespread use has led to resistant strains and cross resistance with antibiotics. A recent study however, found that a cinnamon oil solution was just as effective at killing several common bacteria as many other antiseptics commonly used in hospitals. The team of surgeons conducting the research tested several common essential oils, and found that each has demonstrated promising efficacy against several bacteria, including multi-resistant strains. Another study by researchers in France in 2008 tested bactericidal activity of 13 different essential oils and had similar results, with cinnamon being the most effective. At concentrations as low as 10 percent or less, cinnamon oil was also effective against several antibiotic-resistant strains of bacteria, such as Staphylococcus and E. coli. One pediatrician in New Jersey, Dr. Lawrence D. Rosen, who advocates natural health solutions on his blog, wholechildcenter.org, recommends […]

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