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Health impact from lead: IQ decrement

Abstract

The effects of lead, once it is in the body, are the same no matter how it enters. Exposure to lead is especially dangerous for unborn children, with high levels associated with premature birth and low birth weight. Young children are at risk because they swallow lead when they put toys or other objects soiled with lead-containing dirt in their mouths. A greater proportion of the lead ingested by children enters their bodies than enters the bodies of adults. For infants and young children, lead exposure has been shown in some studies to decrease intelligence (IQ) scores, slow growth, and cause hearing problems. These effects can last as children get older and can be permanent. Realistic risk assessment for lead-induced neurobehavioral deficit in environmentally exposed children must stem from consistent results from independent studies, as well as the documentation of dose-response relationships. At present, studies investigating such effects have not been definitive. However, taken as a whole, there is growing support for the absence of a threshold for adverse effects in exposed children. Summary of selected recent studies and the obtained data are analyzed.
Authors:
Publication Date:
Jul 01, 1994
Product Type:
Technical Report
Report Number:
INIS-XA-N-159
Resource Relation:
Other Information: refs; PBD: Jul 1994; Related Information: In: Estimating fuel cycle externalities: Analytical methods and issues. Report number 2 on the external costs and benefits of fuel cycles: A study by the U.S. Department of Energy and the Commission of the European Communities, 663 pages.
Subject:
54 ENVIRONMENTAL SCIENCES; BRAIN; CHILDREN; DATA ANALYSIS; HEALTH HAZARDS; LEAD; RISK ASSESSMENT
OSTI ID:
20478187
Research Organizations:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Resources for the Future, Washington, DC (United States)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
Other: Contract DE-AC05-84OR21400; ISBN 1-56760-028-X; TRN: XA04N1446052300
Availability:
Available from INIS in electronic form
Submitting Site:
INIS
Size:
14 pages
Announcement Date:
Jul 20, 2004

Citation Formats

Easterly, C. Health impact from lead: IQ decrement. IAEA: N. p., 1994. Web.
Easterly, C. Health impact from lead: IQ decrement. IAEA.
Easterly, C. 1994. "Health impact from lead: IQ decrement." IAEA.
@misc{etde_20478187,
title = {Health impact from lead: IQ decrement}
author = {Easterly, C}
abstractNote = {The effects of lead, once it is in the body, are the same no matter how it enters. Exposure to lead is especially dangerous for unborn children, with high levels associated with premature birth and low birth weight. Young children are at risk because they swallow lead when they put toys or other objects soiled with lead-containing dirt in their mouths. A greater proportion of the lead ingested by children enters their bodies than enters the bodies of adults. For infants and young children, lead exposure has been shown in some studies to decrease intelligence (IQ) scores, slow growth, and cause hearing problems. These effects can last as children get older and can be permanent. Realistic risk assessment for lead-induced neurobehavioral deficit in environmentally exposed children must stem from consistent results from independent studies, as well as the documentation of dose-response relationships. At present, studies investigating such effects have not been definitive. However, taken as a whole, there is growing support for the absence of a threshold for adverse effects in exposed children. Summary of selected recent studies and the obtained data are analyzed.}
place = {IAEA}
year = {1994}
month = {Jul}
}