Skip to Main Content

Latest News

Advertisement
Advertise Here
October 24, 2011
Volume 89, Number 43
p. 7

Toxicology: Draft government report links low-level lead exposure to negative health effects

Britt Erickson

  • Print this article
  • Email the editor

Latest News



October 28, 2011

Speedy Homemade-Explosive Detector

Forensic Chemistry: A new method could increase the number of explosives detected by airport screeners.

Solar Panel Makers Cry Foul

Trade: U.S. companies complain of market dumping by China.

Novartis To Cut 2,000 Jobs

Layoffs follow similar moves by Amgen, AstraZeneca.

Nations Break Impasse On Waste

Environment: Ban to halt export of hazardous waste to developing world.

New Leader For Lawrence Livermore

Penrose (Parney) Albright will direct DOE national lab.

Hair Reveals Source Of People's Exposure To Mercury

Toxic Exposure: Mercury isotopes in human hair illuminate dietary and industrial sources.

Why The Long Fat?

Cancer Biochemistry: Mass spectrometry follows the metabolism of very long fatty acids in cancer cells.

Text Size A A

Blood lead concentrations less than the federally established level of concern are associated with adverse health effects, a draft assessment by the National Toxicology Program concludes. Once finalized, the NTP assessment could prompt the federal government to lower lead exposure limits for workers as well as the blood lead level it considers to be elevated.

Released on Oct. 14, the draft report finds sufficient evidence to associate blood lead concentrations lower than 5 μg/deciliter with decreased academic performance and cognitive function, and “increased incidence of attention deficit hyperactivity disorder and problem behaviors” in children. The report also finds sufficient evidence to associate blood lead levels below 10 μg/dL with delayed puberty, reduced growth, decreased IQ, and decreased hearing in children, as well as increased blood pressure and cardiovascular disease in adults.

The current blood lead level of concern, set by the Centers for Disease Control & Prevention, is 10 μg/dL. Prior to 1991 the level was 25 μg/dL, and before 1985 it was 30 μg/dL. Observers predict that if NTP’s preliminary conclusions make it into the final report, CDC will be under pressure to lower the level again. The National Institute for Occupational Safety & Health, which requested the evaluation, will consider the final conclusions as it reviews recommended lead exposure limits for workers, according to a NIOSH spokesman.

A peer review panel is scheduled to evaluate the draft report at a public meeting next month in North Carolina. NTP is also accepting public written comments until Nov. 3.

Chemical & Engineering News
ISSN 0009-2347
Copyright © 2011 American Chemical Society
  • Print this article
  • Email the editor

Services & Tools

ACS Resources

ACS is the leading employment source for recruiting scientific professionals. ACS Careers and C&EN Classifieds provide employers direct access to scientific talent both in print and online. Jobseekers | Employers

» Join ACS

Join more than 161,000 professionals in the chemical sciences world-wide, as a member of the American Chemical Society.
» Join Now!