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8 unexpected places you may find lead"Most existing lead standards fail to protect children," said Dr. "They provide only an illusion of safety."In 2005, the academy first recognized the possibility of lead associated intellectual impairments at blood concentration levels of 10 or more micrograms per deciliter. (Until recently, this has been the accepted blood lead "level of concern" for children.) Yet now, "extensive and compelling evidence" indicates that cognitive deficits and behavioral problems, including attention disorders and aggression, can occur when blood levels are half that amount.Among the population as a whole, the impact on children's intellectual abilities is substantial. One study estimates that lead toxicity accounted for a loss of 23 million total IQ points among a six year cohort of American children.Flint lead poisoning: Nike Air Presto Men Black White Ireland Online Living with uncertainty long termAccording to Lowry, the best "treatment" is to prevent lead exposure before it happens, adidas ireland office since the effects of lead on the brain are irreversible. Still, she says, the overall impact can be overcome with good education and good nutrition.The developing brains of children are most vulnerable to the neurotoxic effects of this metal, which is able to pass through both the placenta and the blood brain barrier. Lead exposure can cause spontaneous abortion, low birth weight and reduced growth in children.Though lead affects every organ in the body, the nervous system is most susceptible. At very high blood lead levels, vomiting, seizures and even death can result.The steady march of federal policy to banish lead from households and consumer products, which began in 1971, Air Jordan 5 136027-104 Men White Cement Black Sale Ireland has yielded positive results. Over the past four decades, the elimination of lead from paints and gasoline has resulted in dramatic declines in blood concentration levels in children.Yet the toxic metal remains in our environment, including in these surprising places:Paint: "Lead from paint, including lead contaminated dust, is one of the most common causes of lead poisoning," finds the Environmental Protection Agency.Before the late 1970s, paint makers routinely added the toxic metal to their products to boost color and coverage ability. The first major legislation banning the use of lead was the Lead Based Paint Poisoning Prevention Act of 1971, which addressed its use in federal housing (PDF). Some individual states banned residential use of lead based paint shortly after, but it wasn't until 1978 that the ban on residential paint received approval.A recent national survey of housing estimates that slightly more than a third of homes across the nation have lead based paint somewhere in the building, the majority of them built before 1978. Lead based paint buried beneath protective layers of newer paint is not likely to cause a problem. However, any renovation project that disturbs surface layers of paint could lead to poisonous exposure. Windows are often most contaminated, since external paints tended to contain higher concentrations of lead.Water: Drinking water is another possible source of lead contamination. Though the toxic metal is not usually found in natural water supplies, such as lakes, it can enter water distribution systems and household plumbing due to corrosion. In particular, lead based soldering to join pipes to water mains and pipes to faucets was allowed until a 1986 congressional prohibition limiting these practices. (Solders of greater than 0.2% lead and plumbing materials of greater than Buy Air Jordan 8 305381-025 Aqua Men Black Purple Ireland% lead are banned.)Construction that is older than 1986, then, may still contribute lead to drinking water."Drinking fountains in older schools can be an important source of lead exposure," notes the American Academy of Pediatrics. Unfortunately, most states still lack regulations for examining school drinking fountains.
