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Daily News Blog

Archive for the 'Lindane' Category


29
May

Organochlorine Pesticide Linked to Behavioral Deficit in Infants

(Beyond Pesticides, May 29, 2008) A study published in the May issue of Environmental Health Perspectives shows a link between prenatal exposure to the pesticide DDT and poor attention-related skills in early infancy. This study follows in a long line of recent studies associated with the negative health effects of DDT including: diabetes; non-Hodgkin lymphoma; breast cancer; and autism. Despite the fact that DDT was banned in the U.S. in 1972, concentrations of this toxic chemical’s major metabolite, DDE, have remained alarmingly high in many ecosystems, including the waters of Los Angeles County, the arctic, and even U.S. national parks. All studies documenting the health effects of DDT and chemicals in the same family, organochlorines, are particularly important not just for understanding the lingering effects of DDT from days past, but because many countries continue to employ DDT as a method in controlling mosquitoes that transmit malaria, despite its toxicity, weakening efficacy, and availability of safer alternatives. Other organochlorines are still registered for use in the U.S.The study looked at 788 mother-infant pairs who met several criteria, which included living in a town adjacent to a Superfund site in New Bedford, Massachusetts, a location with known organochlorine contamination. Cord blood […]

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16
May

Michigan House Approves Restrictions on Lindane

(Beyond Pesticides, May 16, 2008) Pressured by environmental organizations to protect children’s health and water quality in the Great Lakes, the Michigan House of Representatives has approved restrictions on the use of lindane, a toxic organochlorine pesticide used as a prescription drug to treat lice and scabies.  Under the legislation (HB 4569), the use of lindane  would be  prohibited except “under the supervision of a physician in his or her office if the physician considers the use of that product necessary for the treatment of a patient’s lice or scabies.” The Michigan Senate has not yet voted on the bill. Lindane has long been known for its neurotoxic properties, causing seizures, damage to the nervous system, and weakening of the immune system. It is also a probable carcinogen and endocrine disruptor. When used on people, lindane is regulated by the Food and Drug Administration (FDA). Despite the fact that it has been banned in 52 countries and restricted in over 30 more, FDA continues to allow its use in the U.S., albeit with a Public Health Advisory issued in 2003 that states, “Lindane should be used with caution in infants, children, the elderly, patients with skin conditions, and patients with […]

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10
Mar

Advocates Urge Prevention Despite New Pesticide for Head Lice

(Beyond Pesticides, March 10, 2008) Head lice affect an estimated 12 million people in the U.S. each year, and are rapidly becoming resistant to over-the-counter and prescription medications. Researchers at the University of Massachusetts Amherst have found that ivermectin, a compound produced by soil-dwelling bacteria, was 100 percent effective in killing head lice resistant to many standard treatments. Results were published in the January 2008 edition of the Journal of Medical Entomology. Although ivermectin is not well-absorbed through the skin, some public health advocates are concerned about its use on humans for lice and scabies. The National Pediculosis Association (NPA), a non profit agency, directs parents, health care professionals and child care providers to safer head lice control options via a standardized prevention approach focusing on routine screening, early detection and thorough combing and manual removal of lice and nits. NPA promotes this as a rational strategy over chasing lice with pesticides that offer more risk than benefit and have a well-documented history of lice resistance and failure.Most products used to treat head lice contain the insecticide pyrethrum, or its synthetic cousin permethrin, as the active ingredient. Over the past two decades, resistance to these chemicals has become a serious […]

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18
Dec

California Lindane Ban Proves Successful

(Beyond Pesticides, December 18, 2007) According to a study published December 11, 2007 in the online edition of Environmental Health Perspectives, banning lindane is a viable solution to protecting health and the environment without resulting in increasing problems with head lice and scabies. In 2002, California banned pharmaceutical use of lindane due to concerns about water quality, when high levels of this treatment for head lice and scabies were found to be impacting wastewater quality. The study, “Outcomes of the California Ban on Pharmaceutical Lindane: Clinical and Ecologic Impacts,” describes the effects the ban has had on wastewater quality, unintentional exposures, and clinical practice. This is the first time that a pharmaceutical has been outlawed to protect water quality. As such, this ban provides a rare opportunity to evaluate the possible or potential outcomes of future public health interventions aimed at reducing pharmaceutical water contamination. The study authors compiled data on lindane in wastewater treatment plant effluent for several large plants in California and one outside of California. Data on exposures to lindane were obtained from records of the California Poison Control System. The impact on clinical practice was assessed via a survey of 400 pediatricians. Wastewater treatment plant monitoring […]

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18
Sep

Pesticide Exposure Linked to Asthma in Farmers

(Beyond Pesticides, September 18, 2007) On September 16, 2007, researchers from the National Institute of Environmental Health Sciences presented findings to the European Respiratory Society Annual Congress in Stockholm showing that exposure to several commonly used pesticides increases the risk of asthma in farmers. Pesticide exposure is a “potential risk factor for asthma and respiratory symptoms among farmers,” lead author Dr. Jane A. Hoppin told Reuters Health. “Because grains and animals are more common exposures in agricultural settings, pesticides may be overlooked. Better education and training of farmers and pesticide handlers may help to reduce asthma risk.”The study consisted of 19,704 farmers, 441 of which had asthma. Farmers who have experienced high pesticide exposure were twice as likely to have asthma. Sixteen of the pesticides studied were associated with asthma. Coumaphos, EPTC, lindane, parathion, heptachlor, 2,4,5-TP, DDT, malathion, and phorate had the strongest effect. “This is the first study with sufficient power to evaluate individual pesticides and adult asthma among individuals who routinely apply pesticides,” Dr. Hoppin said. Asthma is a serious chronic disorder of the lungs characterized by recurrent attacks of bronchial constriction, which cause breathlessness, wheezing, and coughing. Asthma is a dangerous, and in some cases life-threatening disease. […]

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