Temporal trends in the lead concentrations of umbilical cord blood

Journal Article · Fri Jun 25 00:00:00 EDT 1982 · Science (Washington, D.C.); (United States)

DOI:https://doi.org/10.1126/science.7089532· OSTI ID:5033727

Rabinowitz, M B; Needleman, H L

Umbilical cord blood specimens from 11,837 births between April 1979 and April 1981 have been analyzed for lead by anodic stripping voltammetry. The mean was 6.56 +- 3.19 (standard deviation) micrograms per deciliter of blood, and the range was 0.0 to 37.0 micrograms per deciliter. The mean decreased annually by 0.77 +- 0.03 microgram per deciliter, about 11 percent. Lead concentrations were higher in infants born in summer than in infants born in winter (7.17 versus 5.99, probability < .001). A Fourier model of the data is presented, and possible reasons for the decline are discussed.

• Research Organization: Harvard Medical School, Boston, MA
• OSTI ID: 5033727
• Journal Information: Science (Washington, D.C.); (United States), Vol. 216
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
59 BASIC BIOLOGICAL SCIENCES
BLOOD
QUANTITATIVE CHEMICAL ANALYSIS
LEAD
ECOLOGICAL CONCENTRATION
METABOLISM
BIOCHEMISTRY
INFANTS
PARTURITION
SEASONAL VARIATIONS
VOLTAMETRY
AGE GROUPS
BIOLOGICAL MATERIALS
BODY FLUIDS
CHEMICAL ANALYSIS
CHEMISTRY
CHILDREN
ELEMENTS
MATERIALS
METALS
VARIATIONS
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551000 - Physiological Systems