Navigation Links
Childhood blood lead levels rise and fall with exposure to airborne dust in urban areas
Date:2/25/2013

A new nine-year study of more than 367,000 children in Detroit supports the idea that a mysterious seasonal fluctuation in blood lead levels observed in urban areas throughout the United States and elsewhere in the northern hemisphere results from resuspended dust contaminated with lead.

The scientists, who report in the journal Environmental Science & Technology (ES&T), say the results have implications for government efforts to control childhood exposure to lead, which can have serious health consequences. ES&T is among the more than 40 peer-reviewed scientific journals published by the American Chemical Society, the world's largest scientific society. The full text of the study is available at http://pubs.acs.org/stoken/presspac/presspac/abs/10.1021/es303854c.

Shawn P. McElmurry and colleagues point out that average blood lead levels in the U.S. and globally have declined following the elimination of lead from gasoline, paint, water pipes and solder used to seal canned goods. In addition to McElmurry, who is with Wayne State University in Detroit, the international team included Sammy Zahran of Colorado State University; Gabriel M. Filipelli of Indiana University-Purdue University, Indianapolis; and Mark Laidlaw and Mark P. Taylor of Macquarie University in Sydney, Australia.

Much of the current lead in major urban areas is from those "legacy" contaminants. Modern human exposure takes the form of fine particles, deposited in the soil years ago, that are swept up into the air. Past research identified a seasonal trend in blood lead levels in children in multiple North American cities, including Washington, D.C., New York, Chicago and Milwaukee. Those levels increase, often by more than 10 percent, in July, August and September. Blood lead levels then decrease during winter and spring.

The scientists set out to test a hypothesis implicating contact with lead-contaminated dust while children are outdoors and engaged in warm-weather activities at a time when wind, humidity and other meteorological factors increase the amounts of dust in the air. Their ES&T report describes research that strongly implicates airborne dust as the reason for the seasonal trends in blood lead levels. It shows a correlation between atmospheric soil levels in Detroit and blood lead levels in children.

"Our findings suggest that the federal government's continued emphasis on lead-based paint may be out-of-step (logically) with the evidence presented and an improvement in child health is likely achievable by focusing on the resuspension of soil lead as a source of exposure," the report states. "Given that current education has been found to be ineffective in reducing children's exposure to Pb, we recommend that attention be focused on primary prevention of lead-contaminated soils."


'/>"/>

Contact: Michael Bernstein
m_bernstein@acs.org
202-872-6042
American Chemical Society
Source:Eurekalert

Related biology news :

1. Is there a link between childhood obesity and ADHD, learning disabilities?
2. Research finds promising approaches to prevent Latino childhood obesity
3. Researchers discover mutations linked to relapse of childhood leukemia
4. Abuse during childhood linked to uterine fibroids in African-American women
5. Tumors evolve rapidly in a childhood cancer, leaving fewer obvious tumor targets
6. Childhood trauma leaves its mark on the brain
7. Bullying by childhood peers leaves a trace that can change the expression of a gene linked to mood
8. MicroRNA-218 targets medulloblastoma, most aggressive childhood brain cancer
9. Abuse during childhood linked to adult-onset asthma in African-American women
10. Predicting the age at menopause of women having suffered from childhood cancers
11. Gene sequencing project identifies abnormal gene that launches rare childhood leukemia
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/19/2016)... -- The new GEZE SecuLogic access control ... system solution for all door components. It can be ... interface with integration authorization management system, and thus fulfills ... dimensions of the access control and the optimum integration ... considerable freedom of design with regard to the doors. ...
(Date:4/15/2016)... 15, 2016 Research and ... Biometrics Market 2016-2020,"  report to their offering.  , ... , ,The global gait biometrics market is expected ... the period 2016-2020. Gait analysis generates ... be used to compute factors that are not ...
(Date:4/13/2016)... CHICAGO , April 13, 2016  IMPOWER physicians ... are setting a new clinical standard in telehealth ... By leveraging the higi platform, IMPOWER patients can ... weight, pulse and body mass index, and, when they ... quick and convenient visit to a local retail location ...
Breaking Biology News(10 mins):
(Date:5/23/2016)... WARSAW, Ind. , May 23, 2016 Zimmer ... in musculoskeletal healthcare, today announced that its Board of Directors ... stockholders for the second quarter of 2016. ... on or about July 29, 2016 to stockholders of record ... Future declarations of dividends are subject to approval of the ...
(Date:5/23/2016)... and LONDON , May 23, 2016 /PRNewswire/ ... See Frontage Boost Efficiency by 40% - Frontage Implement ... - Frontage Enforce Quality, Compliance and Traceability Within the Bioanalytical lab ... labs in the United States and ... to be deployed across its laboratory facilities. In addition to serving ...
(Date:5/23/2016)... ... May 23, 2016 , ... ... molecular nanotechnology, announced the winners for the 2015 Foresight Institute Feynman Prizes. ... given in two categories, one for experiment and the other for theory in ...
(Date:5/20/2016)... ... May 20, 2016 , ... The leading Regenerative Veterinary Medicine ... experienced veterinary clients have treated over 100 of their own patients with the VetStem ... the highest level of care for their patients. , The veterinarians are Dr ...
Breaking Biology Technology: