| Literature DB >> 7089532 |
M B Rabinowitz, H L Needleman.
Abstract
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 less than .001). A Fourier model of the data is presented, and possible reasons for the decline are discussed.Entities:
Mesh:
Substances:
Year: 1982 PMID: 7089532 DOI: 10.1126/science.7089532
Source DB: PubMed Journal: Science ISSN: 0036-8075 Impact factor: 47.728