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Titolo:
BLOOD LEAD CONCENTRATIONS IN MARINE MAMMALS VALIDATE ESTIMATES OF 10(2)-FOLD TO 10(3)-FOLD INCREASE IN HUMAN BLOOD LEAD CONCENTRATIONS
Autore:
OWEN BD; FLEGAL AR;
Indirizzi:
UNIV CALIF SANTA CRUZ,INST MARINE SCI SANTA CRUZ CA 95064 UNIV CALIF SANTA CRUZ,WIGS SANTA CRUZ CA 95064
Titolo Testata:
Environmental research (New York, N.Y. : Print)
fascicolo: 2, volume: 78, anno: 1998,
pagine: 134 - 139
SICI:
0013-9351(1998)78:2<134:BLCIMM>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
NORTHERN ELEPHANT SEAL; ISOTOPIC COMPOSITION; NATIONAL-HEALTH; EXPOSURE; PACIFIC; NHANES; OTTERS; BONE;
Keywords:
LEAD; BLOOD LEAD; STABLE LEAD ISOTOPES; MARINE MAMMALS; M-ANGUSTIROSTRIS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
29
Recensione:
Indirizzi per estratti:
Citazione:
B.D. Owen e A.R. Flegal, "BLOOD LEAD CONCENTRATIONS IN MARINE MAMMALS VALIDATE ESTIMATES OF 10(2)-FOLD TO 10(3)-FOLD INCREASE IN HUMAN BLOOD LEAD CONCENTRATIONS", Environmental research (New York, N.Y. : Print), 78(2), 1998, pp. 134-139

Abstract

Measurements of ultra-low ambient blood lead (PbB) concentrations (mean +/- SD = 0.13 +/- 0.06 mu g/dL) in Northern elephant seals (Mirounga angustirostris) validate previous estimates of ultra-low PbB levels in preindustrial humans. These estimates had been unsubstantiated, since PbB levels in this range had never been measured in any organisms prior to this study. Similarities in PbB levels among these contemporary and preindustrial mammals are consistent with similarities in their measured and estimated lead exposures, respectively. The marginally higher PbB levels and rates of lead exposure in contemporary marine mammals are, also, consistent with lead isotopic composition analyses thatindicate their PbB levels have been elevated from exposure to industrial lead. Consequently, these analyses substantiate concerns that current baseline PbB levels in humans, which are estimated to be two to three orders of magnitude above natural levels, may still constitute public health risks. (C) 1998 Academic Press.

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Documento generato il 05/07/20 alle ore 05:19:40