Lead sources to California sea otters: Industrial inputs circumvent natural lead biodepletion mechanisms
作者： Donald R. Smith , Sid Niemeyer , A. Russell Flegal
DOI: 10.1016/S0013-9351(05)80076-3
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摘要: Lead levels (as Pb/Ca atom ratios) and stable isotopic compositions were measured in teeth of preindustrial contemporary California sea otters (Enhydra lutris) to determine if postindustrial changes had occurred the magnitude source accumulated lead. Lead/calcium ratios (x¯ ± SD) some animals (110 37 × 10−8, n = 3) significantly elevated compared other (13 6.0 4) (7.3 3.9 6) otters. The 2σx¯) revealed a change sources leads, from natural continental-derived leads (207Pb/206Pb 0.820 0.002) industrial dominated by aerosol 0.836 0.003). one exception was Monterey Bay animal 0.853), who contained lead derived an waste deposit Harbor. These data establish distinguishable assimilated otters, indicate that exposures circumvented biodepletion through marine trophic pathways.
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sci-hub.se 参考文章(42)
E. K. Silbergeld, F. McNeill, J. Sauk, A. Todd, A. Fontaine, B. Fowler, J. Van Buren, M. Somerman, Lead in bone: storage site, exposure source, and target organ. Neurotoxicology. ,vol. 14, pp. 225- 236 ,(1993)
Gunter Faure, Principles of isotope geology ,(1977)
Marcel E. Conrad, James C. Barton, Factors affecting the absorption and excretion of lead in the rat Gastroenterology. ,vol. 74, pp. 731- 740 ,(1978) , 10.1016/0016-5085(78)90253-6
A. R. Flegal, T. F. Duda, S. Niemeyer, High gradients of lead isotopic composition in north-east Pacific upwelling filaments Nature. ,vol. 339, pp. 458- 460 ,(1989) , 10.1038/339458A0
Stanley B. Gross, Emil A. Pfitzer, David W. Yeager, Robert A. Kehoe, Lead in human tissues. Toxicology and Applied Pharmacology. ,vol. 32, pp. 638- 651 ,(1975) , 10.1016/0041-008X(75)90127-1
Herbert L. Needleman, Charles Gunnoe, Alan Leviton, Robert Reed, Henry Peresie, Cornelius Maher, Peter Barrett, Deficits in Psychologic and Classroom Performance of Children with Elevated Dentine Lead Levels New England Journal of Medicine. ,vol. 300, pp. 689- 695 ,(1979) , 10.1056/NEJM197903293001301
Clair Patterson, Global pollution measured by lead in mid-ocean sediments Nature. ,vol. 326, pp. 244- 245 ,(1987) , 10.1038/326244A0
C Patterson, D Settle, B Glover, Analysis of lead in polluted coastal seawater Marine Chemistry. ,vol. 4, pp. 305- 319 ,(1976) , 10.1016/0304-4203(76)90017-7
Karl K. Turekian, The fate of metals in the oceans Geochimica et Cosmochimica Acta. ,vol. 41, pp. 1139- 1144 ,(1977) , 10.1016/0016-7037(77)90109-0
Bruce J. Aungst, James A. Dolce, Ho-Leung Fung, The effect of dose on the disposition of lead in rats after intravenous and oral administration Toxicology and Applied Pharmacology. ,vol. 61, pp. 48- 57 ,(1981) , 10.1016/0041-008X(81)90006-5