(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 […]

(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. […]

(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 […]

(Beyond Pesticides, June 30, 2010) The U.S. Environmental Protection Agency (EPA) approval process for thousands of antimicrobial products is woefully inadequate, according Public Employees for Environmental Responsibility (PEER). Despite a growing body of scientific evidence about the side-effects of these products, EPA rubberstamps registrations without duly considering an array of potential public health and environmental impacts. Antimicrobials are now a billion dollar business with more than 5,000 such products currently registered with EPA. Initially designed for hospitals and clinics, antimicrobial pesticides are today 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 downstream consequences. One prime example of this is the antibacterial pesticide triclosan that is formulated into hundreds of personal care products, toys and textiles. Studies show that triclosan is an endocrine disruptor, accumulates in human fatty tissue and can influence the onset of bacterial resistance. Beyond Pesticides, Food and Water Watch and several other groups petitioned FDA in 2009 and EPA in January 2010, calling for the ban of triclosan citing the possibility of bacterial resistance to antibacterial substances and […]

(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 […]

(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 […]

(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 […]

(Beyond Pesticides, April 28, 2010) Having already requested the Scientific Committee on Consumer Safety (SCCS) to assess whether an association can be found between the use of triclosan in cosmetic products and the development of resistance by certain micro-organisms, the European Commission is launching a public consultation on the preliminary opinion, which found in March that, “ Low concentrations of triclosan can trigger the expression of resistance and cross-resistance mechanisms in bacteria in vitro”¦.[which] warrants further investigation.” The preliminary report from the SCCS, entitled “Preliminary opinion on triclosan (Antimicrobial Resistance),” was published in March 2010 and open to comment. The committee was asked to answer the question: “Does the SCCS consider a continued use of triclosan as a preservative in cosmetic products as safe taking into account the new provided documentation of resistance development by certain micro-organisms and cross-resistance?” The SCCS also found that, “Some reported environmental concentrations in a number of geographically distinct areas are high enough to suggest that such triggering of bacterial resistance could also occur in the environment. This warrants further investigation.” However, it continues, “The applications of triclosan which contribute to those high environmental concentrations cannot be properly identified nor quantified at present.” As a […]

(Beyond Pesticides, April 26, 2010) With the growing number of viable, cost-effective alternative pest management strategies, it has never been easier for schools to eliminate the unnecessary use of toxic pesticide in school buildings and on school grounds. In celebration of Healthy School Day, an annual event coordinated by the Healthy Schools Network, Beyond Pesticides, one of the event’s 25 co-sponsors, asks parents, school staff and administrators, government agencies, community activists, and those in political office to demand that our nation’s schools do a better job at providing environmentally safe schools for children. In the absence of federal law, such as the proposed School Environment Protection Act (SEPA), some states and local school districts have attempted to provide children with the protection they need from hazardous pesticide exposure while at school, yet the level of protection is uneven and inadequate across the country, with the majority of children left unprotected. There is no reason to expose children to hazardous pesticides and cleaning agents. The tools and experience are available to ensure environmentally safe schools for all children. “The vulnerability of infants and children to the harmful effects of pesticides continues to attract national attention. Schools from across the country document […]

(Beyond Pesticides, April 22, 2010) In a new consumer factsheet posted April 8, 2010, the U.S. Food and Drug Administration (FDA) attempts to moderate the position it took in a February 23, 2010 letter to Congress in which it said, “[E]xisting data raise valid concerns about the effects of repetitive daily human exposure to these antiseptic ingredients” and “FDA shares your concerns over the potential effects of triclosan and triclocarban as endocrine disruptors that has emerged since we issued the TFM [Tentative Final Monograph] in 1994.” Instead, in bureaucractic-speak FDA is now saying, “[T]riclosan is not currently known to be hazardous to humans.” Safety advocates say that the FDA’s latest statement creates public confusion as the triclosan market continues to grow and manufacturers in the soap and cosmetics industry daily push misleading advertising claims about the protection from bacteria attributed to the toxic ingredient triclosan. While equivocating on the science on triclosan’s adverse effects, FDA does question the efficacy of the widely marketed triclosan products with the statement, “At this time the agency does not have evidence that triclosan in antibacterial soaps and body washes provides any benefit over washing with regular soap and water.” The new FDA factsheet, featured […]

(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 […]

(Beyond Pesticides, March 17, 2009) “Children Act Fast…So Do Poisons” is the message that the U.S. Environmental Protection Agency (EPA) is sending in conjunction with the Poison Prevention Week Council to keep poisonous substances out of the hands of children. In observance of the annual National Poison Prevention Week (March 14-20), EPA recommends locking up household cleaners, disinfectants, solvents and other materials as the best way to reduce accidental poisoning among children. However, Beyond Pesticides advises the public to throw out poisonous chemicals and utilize non-toxic methods of pest management. While it is wise to keep all potentially harmful household products out of the reach and hands of children, Beyond Pesticides recommends to the public to abandon poisonous chemicals and instead practice non-toxic methods of pest management and use least-toxic chemicals where possible. EPA continues to facilitate and apologize for the unnecessary use of highly toxic pesticides, disinfectants, solvents and other hazardous materials that it registers, and misses every year the important opportunity during National Poison Prevention Week to alert families with children about integrated pest management and organic methods that are effective, but not reliant on hazardous methods. Numerous scientific studies that show children carrying a body burden of […]

(Beyond Pesticides, March 12, 2010) Over 40 million Americans watched Sandra Bullock and Jeff Bridges win the best actress and actor Oscars at the 82nd Academy Awards last Sunday. On Wednesday March 3rd, Californians for a Healthy and Green Economy (CHANGE) recognized the year’s bad actors, bad chemical actors that is, at the first ever “Toxies.” CHANGE is a coalition of environmental, policy, labor, interfaith and other organizations working to regulate toxic chemicals in the state of California. Held at the Egyptian Theater in Hollywood, the Red Carpet Event featured actors in character as various harmful chemicals. Toxies were awarded to the pesticides Triclosan and Methyl Iodide. The tongue-in-cheek award show was intended to bring awareness to the harmful effect that these chemicals have on human health and the environment. The timing coincides not only with the awards show season, but with the anticipated release of the final draft of regulations for California’s Green Chemistry Programs. The awards ceremony and accompanying report awarded Toxies to 16 bad chemical actors. The “winners” all affect human health and all have safer alternatives. The 2010 Toxie winners are: Worst Breakthrough Performance: Bisphenol A (BPA) Found in plastics BPA has been linked to breast […]

(Beyond Pesticides, March 8, 2010) Twenty local businesses and organizations around New Brunswick, New Jersey announced their commitment to not purchase, use or sell products that contain triclosan, an antimicrobial pesticide shown to pose risks to both human health and the environment. Last week, the national consumer advocacy group Food & Water Watch convened an event with the businesses and organizations as part of its “Wash Your Hands of Triclosan” campaign. Speakers additionally expressed support for a proposed Highland Park ordinance to ban the municipal purchase of products containing triclosan, which will be discussed at the Highland Park Board of Health’s meeting on March 11. The community support behind prohibiting triclosan products is a strong indication of an increasing public rejection of the chemical. Originally developed as an anti-bacterial agent for hospital settings, triclosan is widely found in many consumer and household products ranging from dish soaps and detergents to toothpastes, deodorants, and others. A known endocrine disruptor, triclosan has been linked to antibiotic resistance, and can affect male and female reproductive hormones, which could potentially increase risk for cancer. Due to its prevalence in so many products, triclosan is now showing up in many things, from human breast milk […]

(Beyond Pesticides, February 24, 2010) On February 22, 2010 the U.S. Food and Drug Administration (FDA) issued a federal notice requesting data and information regarding the potential environmental impact of triclosan’s use in acne and antiplaque/antigingivitis products. The agency, in order to comply with the National Environmental Protection Act (NEPA), must complete environmental assessments (EA) for active ingredients before they are included in the agency’s over-the-counter (OTC) drug regulation system. Triclosan, a controversial antibacterial agent found in hundreds of consumer products, from hand sanitizers to toys, is one of 13 chemicals being assessed by FDA for environmental impacts according to their proposed uses. According to FDA regulations, the agency must conduct EAs before chemicals are approved for use in OTC drug products. In this case, triclosan is being considered for use in acne and antiplaque/antigingivitis products. Even though this action is being taken, FDA has never been able to finalize and approve the use of triclosan in any OTC products, despite the proliferation of these products in the consumer marketplace. It appears that EAs for the vast majority of triclosan uses have been completed. Other FDA regulations on triclosan have not been updated since 1994 and much of the data […]

(Beyond Pesticides, February 22, 2010) Wives of agricultural pesticide applicators have a significantly increased risk of developing thyroid disease, according to the new study, “Pesticide Use and Thyroid Disease Among Women in the Agricultural Health Study,” published in the American Journal of Epidemiology. Using data collected from more than 16,500 female spouses from Iowa and North Carolina enrolled in the Agricultural Health Study from 1993 to 1997, the researchers show that 12.5 percent of the women have thyroid disease, 6.9 percent have hypothyroidism and 2.1 percent have hyperthyroidism; whereas, the national average is 5 percent and 1 percent, respectively. Thyroid disease is more common in women than men and is the second most common hormone disorder affecting women of childbearing age. According to the study results, ever use of a fungicide shows a slight increased risk (odds ratio (OR) 1.4) and ever use of an organochlorine insecticide shows a 1.2 OR for hypothyroidism. Ever use of the fungicide benomyl shows a more than tripling of risk to hypothyroidism, whereas the fungicides maneb and mancozeb show a more than doubling and the herbicide paraquat shows a nearly doubling of risk. Maneb and mancozeb also show a more than doubling of risk […]

(Beyond Pesticides, February 9, 2010) In an innovative development that could transform the way Americans view the origins of learning and developmental disabilities, the national Learning and Developmental Disabilities Initiative (LDDI) released the first-ever biomonitoring report identifying toxic chemical pollution in people from the learning and developmental disability community. Mind, Disrupted: How Toxic Chemicals May Affect How We Think and Who We Are examines 61 toxic chemicals present in project participants in the context of rising rates of autism, attention-deficit hyperactivity disorder, and other learning and developmental disabilities.   In the U. S., 5-15% of children under age 18 are affected by learning and developmental disabilities. Reported cases of autism spectrum disorders have increased tenfold since the early 1990s. Based on current research, the Centers for Disease Control and Prevention (CDC) states that 1 in 110 eight-year-old children have autism in the United States. Mind, Disrupted measured levels of a set of neurotoxic and endocrine-disrupting chemicals in the participants’ bodies. A growing body of peer-reviewed scientific research, including animal and human studies, shows that these chemicals can disrupt the development and functioning of the brain and nervous system. Eleven of the twelve study participants had detectable levels of triclosan in […]

(Beyond Pesticides, February 8, 2010) The Center for Biological Diversity filed a notice of intent to sue the Environmental Protection Agency (EPA) last week. The lawsuit argues that EPA violated the Endangered Species Act when it approved 394 pesticides known to be harmful to humans and wildlife, without consulting with wildlife regulatory agencies as to the pesticides’ effects on endangered species. By registering pesticides known to harm migratory birds the EPA has also violated the Migratory Bird Treaty Act, according to the suit. The pesticides named in the suit pose a danger not only to wildlife, but to human health as well. Some of the pesticides named include 2,4-D the most commonly used pesticide in the nonagricultural sector, atrazine, triclosan, and pyrethrins. Jeff Miller, conservation advocate at the Center for Biological Diversity, said, “It’s time for the Environmental Protection Agency to finally reform pesticide use to protect both wildlife and people…Many endangered species most affected by toxic pesticides are already struggling to cope with habitat loss and rapid climate changes. For too long this agency’s oversight has been abysmal, allowing the pesticide industry to unleash a virtual plague of toxic chemicals into our environment.” The suit names 887 threatened and […]

(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 […]

(Beyond Pesticides, January 14, 2010) Stating that current water-quality criteria does not reflect the latest scientific knowledge, The Center for Biological Diversity petitioned the U.S. Environmental Protection Agency (EPA) to establish new water-quality criteria for numerous endocrine-disrupting chemicals (EDC) under the Clean Water Act. If adopted, it will be a big step in regulating and eliminating persistent and widespread chemicals that damage reproductive functions in wildlife and humans. The Center for Biological Diversity formally requested that the EPA publish water quality criteria and information taking into account overwhelming science about the effects of EDC pollution on January 11. It says that under the Clean Water Act, EPA has a duty to periodically update water quality criteria to reflect the latest scientific knowledge. The petition presents scientific information on endocrine disrupting chemical pollution found in our waters and requests that the EPA promptly update water quality criteria reflecting this scientific information. Last month, legislation was introduced into Congress to explore linkages between hormone disrupting chemicals in the environment and everyday products and the dramatic increase of autism, hyperactivity, diabetes, obesity, breast cancer, prostate cancer and other hormone related disorders. After the identification of endocrine disruptors, the bill, The Endocrine Disruption Prevention […]

(Beyond Pesticides, January 6, 2010) The House Energy and Environment Subcommittee chairman asked federal regulators for an open discussion about the health and environmental impacts of two controversial chemicals- triclosan and triclocarban- commonly found in antimicrobial hand soaps and other consumer products. Rep. Ed Markey (D-Mass.) is asking U.S. Environmental Protection Agency (EPA) and the Food and Drug Administration (FDA) for answers to questions about triclosan and triclocarban. The synthetic antimicrobial chemicals are found in many soaps, toothpastes, deodorants and cosmetics. “Despite serious questions regarding the safety of these potentially dangerous products, these substances seem to exist in a regulatory black hole,” Rep. Markey said in a statement. “We must ensure that these products … kill germs without adversely impacting human health.” Read letter to EPA and FDA. In the letter to EPA, Rep. Markey questions whether the agency is reviewing existing data on the two chemicals, and if it has made a decision about further regulating them. He also asked if the agency has examined the impact of triclosan on wildlife, and whether it plans to evaluate the chemicals under its hormone-screening program, the Endocrine Disruptor Screening Program. The lawmaker also pushed FDA on its plan for finalizing a […]

(Beyond Pesticides, December 16, 2009) The U.S. Centers for Disease Control and Prevention (CDC) has published its Fourth National Report on Human Exposure to Environmental Chemicals – the most comprehensive assessment to date of the exposure of the U.S. population to chemicals in our environment. CDC measures 212 chemicals in people’s blood or urine – 75 of which have been measured for the first time in the U.S. population. One of the new chemicals included in this report is triclosan, a common and hazardous antibacterial agent. In this Fourth Report, 75 new chemicals were added. Chemicals in the Fourth Report include metals such as lead, cadmium, uranium, mercury, and speciated forms of arsenic; environmental phenols such as bisphenol-A (BPA); acrylamide; perfluorinated chemicals; polybrominated diphenyl ethers (PBDEs); polychlorinated biphenyls (PCBs); volatile organic compounds such as benzene, styrene and methyl tert-butyl ether; pesticides; phthalates; and dioxins, furans and related chemicals. The data analyzed in the Fourth Report are based on blood and urine samples that were collected from approximately 2400 people who participated in CDC’s National Health and Nutrition Examination Survey (NHANES) from 2003 through 2004. NHANES is an ongoing national health survey of the non-institutionalized U.S. population that includes collecting and […]

(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 […]