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Creator |
Childhood Lead Exposure: Effects and Potential Treatments
Although estimates vary, it is thought that, for every 10 microg/dl increase in blood lead level, there is a loss of approximately 4-6 IQ points.
http://www.cce.cornell.edu/food/expfiles/topics/strupp/struppoverview.html |
smadaynnep
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Deficits in psychologic and classroom performance of children with elevated dentine lead levels.
Lead exposure, at doses below those producing symptoms severe enough to be diagnosed clinically, appears to be associated with neuropsychologic deficits that may interfere with classroom performance.
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Retrieve&list_uids=763299&dopt=Citation |
smadaynnep
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Exposure to lead and specific attentional problems in schoolchildren.
The results showed that children with relatively high concentrations of lead in their hair reacted significantly slower in a simple reaction-time task than did children with relatively low concentrations of lead in their hair. In addition, the former were significantly less flexible in changing their focus of attention, even after correction for the influence of their delayed reaction time.
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=7519655&dopt=Abstract |
smadaynnep
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Impact of Lead on Behavior and Learning of Children
Lead has adverse neurological effects, with decrease in IQ and reading ability in young adulthood. Reading disability due to poisoning was two or more grades below expected. Long term exposure of this metal results not only in school failure but also reduces life success. Affected children are hyperactive and inattentive. The study by Wilson and Herrsteins show that the criminal behavior is of early onset, predominant in males, with aggressiveness, decreased IQ, and hyperactivity. The aggression, delinquency and attention were studied on children by both teachers and parents and were found to be increased in lead affected children.
http://www.leadpoison.net/studies/impact.htm |
smadaynnep
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Lead Online Training Program - Effects of Elevated Blood Lead Levels in Children
Studies have found that childhood exposure to lead contributes to attention deficit/hyperactivity disorder (ADHD), hyperactivity, and distractibility
http://www.health.state.mn.us/divs/fh/mch/webcourse/lead/elevated4.cfm |
smadaynnep
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Lead Poisoning Affects Thousands of Children and Adults
Because children are not yet fully developed, the lead poisoning affects many aspects of their progression and growth. Speech delay, hyperactivity, attention deficit disorder, learning disabilities, behavior disorders, neurological and renal damage, stunted growth, anemia, hearing loss, and cognitive damage can result.
http://www.lead-poisoning-news.com/ |
smadaynnep
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Low-Level Lead Exposure and Behavior in Early Childhood
Low-level lead exposure is associated with adverse behavioral changes in very young preschool children
http://pediatrics.aappublications.org/cgi/content/full/101/3/e10 |
smadaynnep
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Recent Developments in Low-Level Lead Exposure and Intellectual Impairment in Children
In the last decade children's blood lead levels have fallen significantly in a number of countries, and current mean levels in developed countries are in the region of 3 µg/dL. Despite this reduction, childhood lead poisoning continues to be a major public health problem for certain at-risk groups of children, and concerns remain over the effects of lead on intellectual development in infants and children. The evidence for lowered cognitive ability in children exposed to lead has come largely from prospective epidemiologic studies. The current World Health Organization/Centers for Disease Control and Prevention blood level of concern reflects this and stands at 10 µg/dL. However, a recent study on a cohort of children whose lifetime peak blood levels were consistently < 10 µg/dL has extended the association of blood lead and intellectual impairment to lower levels of lead exposure and suggests there is no safety margin at existing exposures.
http://ehp.niehs.nih.gov/members/2004/6941/6941.html |
smadaynnep
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Study: Even low levels of lead highly dangerous
Although the case is not conclusive, many scientists believe lead exposure is a significant cause of attention deficit hyperactivity disorder (ADHD). Both lead and ADHD are strongly associated with failure in school and delinquency.
http://www.qctimes.com/internal.php?story_id=1030329&l=1&t=Health&c=9,1030329 |
smadaynnep
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The Long-Term Effects of Exposure to Low Doses of Lead in Childhood: An 11-Year Follow-up Report
We conclude that exposure to lead in childhood is associated with deficits in central nervous system functioning that persist into young adulthood.
http://www.leadpoison.net/studies/long-term.htm |
smadaynnep
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What lead does to your health
Landmark studies on groups of children in the US found that behavioural and performance problems in primary school children (including distractibility, impulsivity, disorganisation, non-persistence, inability to follow simple instructions and overall poor functioning) were more prevalent in children with increasing dentine (teeth) lead levels in baby teeth.
http://www.epa.nsw.gov.au/leadsafe/leadinf2.htm |
smadaynnep
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