Lead isotopic determination of historical sources of lead to Lake Erie, North America

Ritson, Peter; Esser, Bradley K.; Niemeyer, S.; Flegal, A. Russell

doi:10.1016/0016-7037(94)90058-2

Cited by 73 publications

(43 citation statements)

References 31 publications

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“…et al, 1994 . Other aquatic systems have shown persistent contamination despite elimination of exter nal sources Ž Flegal and Sanudo-Wilhelmy, 1993; ˜ . Ritson et al, 1994 . This is thought to be due to cycling of contaminants between historically de posited sediments and overlying waters Ž Flegal and Sanudo-Wilhelmy, 1993;Rivera-Duarte and Flegal, ˜ .…”

Section: Discussionmentioning

confidence: 99%

“…This is thought to be due to cycling of contaminants between historically de posited sediments and overlying waters Ž Flegal and Sanudo-Wilhelmy, 1993;Rivera-Duarte and Flegal, ˜ . 1994;Ritson et al, 1994 . Water quality regulations should take into account contaminant inputs associ ated with remobilization of historic contamination from sediment in order to understand and improve water quality in the estuary.…”

Section: Discussionmentioning

confidence: 99%

“…Aerosol isotopic compositions have changed temporally as a result of different ore sources em ployed in TEL production Ž Rabinowitz and Wether . ill, 1972;Shirahata et al, 1980;Ritson et al, 1994 . Most San Francisco Bay area gasolines and aerosols from 1972 and later have lead isotopic compositions 207 higher in 206 Pbr Pb Ž Rabinowitz and Wetherill, 1972;Hirao and Patterson, 1974;Smith et al, 1992.…”

Section: Surface Sedimentsmentioning

confidence: 99%

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Stable lead isotopic analyses of historic and contemporary lead contamination of San Francisco Bay estuary

et al. 1999

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Surface Sedimentsmentioning

confidence: 99%

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Stable lead isotopic analyses of historic and contemporary lead contamination of San Francisco Bay estuary

et al. 1999

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“…The > 57 g/cm 2 horizons were deposited in the 1960-1965 timeframe (note the 1963 marker from 137 Cs chronology which occurs at 64 g/cm 2 ). The higher concentrations in the bottom portion of Core 47 are concordant with substantial inputs of anthropogenic Pb in Lake Erie basin sediments [4,21] deposited during the same time period.…”

Section: Pb Th and U Concentrationsmentioning

confidence: 56%

“…The Pb concentrations suggest that Core 10 and the uppermost horizons of Core 47 consist of sediment which is largely unaffected by anthropogenic Pb contamination. The Lake Erie sediment data are reported in previous studies [4,21]; both of these groups found consistent Pb concentrations of ~ 20 ppm in pre-1860 horizons from Lake Erie's western, central and eastern basins. The bottom horizons of Core 47, however, appear to indicate anthropogenic Pb contributions.…”

Section: Pb Th and U Concentrationsmentioning

confidence: 77%

Unusually Radiogenic Lead (Pb) in Ashtabula River Sediments: An Isotopic Tracing Case Study Using Quadrupole ICP-MS

Ketterer¹

2010

TOCBMJ

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Retrospective Analysis of Anthropogenic Inputs of Lead and Other Heavy Metals to the Hawaiian Sedimentary Environment

Carlo¹,

Spencer²

1997

Appl. Organometal. Chem.

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In this paper we present and discuss heavy‐metal concentrations in sediment cores from the Ala Wai Canal, a small urban drainage estuary in Honolulu, Hawaii (Oahu Island), and from selected soils and sediments collected in less impacted areas of Hawaii. We focus on lead and its isotope ratios to document the introduction, proliferation and subsequent phasing‐out of alkyl‐lead fuel additives in Honolulu over the past 60 years. Sedimentary lead increases from <10 ppm in the oldest (deepest) unimpacted portions of the cores to ˜750 ppm in sediments from the mid‐1970s; lead contents then decrease to a range of 100–300 ppm in the most recent deposits. Lead concentrations in the canal sediments closely track the consumption of alkyl‐lead fuel additives used on Oahu in the middle of this century. More than 90% of the lead in certain core intervals is of anthropogenic origin. Stable lead isotope ratios reflect changes in the estuary's sources of lead and show that this lead has an isotopic signature distinct from natural samples. Undisturbed layers of sediments in the Ala Wai canal track the average composition of anthropogenic lead used in its Honolulu watershed through time. The distinctive pattern of lead isotopes measured in Ala Wai Canal sediments can be used to distinguish anthropogenic from natural lead in Hawaiian rural locations. Soils located away from point‐sources of contamination have isotopic compositions defined by mixtures of locally erupted volcanic rock, atmospheric dust and components similar to Ala Wai Canal anthropogenic lead. Natural lead concentrations in Hawaii are in the range of a few to a few tens of parts per million, with the high‐concentration end‐member occurring in a few selected intramountain basins where soils contain a significant component of continental dust fines scavenged by rainfall and concentrated by local geological conditions. Rural watershed material exhibits small but discernible elevations in lead concentrations due to anthropogenic effects. Other metals (cadmium, copper and zinc) in the Ala Wai Canal sediments also display patterns consistent with increased fluxes of metals attributable to anthropogenic activity. Unlike lead, no clear maxima are observed in sediments deposited during the mid 1970s. Rather, a continued input of these metals is attributed to expanding anthropogenic activity in the Ala Wai Canal watershed. © 1997 by John Wiley & Sons, Ltd.

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Lead isotopic determination of historical sources of lead to Lake Erie, North America

Cited by 73 publications

References 31 publications

Stable lead isotopic analyses of historic and contemporary lead contamination of San Francisco Bay estuary

Stable lead isotopic analyses of historic and contemporary lead contamination of San Francisco Bay estuary

Unusually Radiogenic Lead (Pb) in Ashtabula River Sediments: An Isotopic Tracing Case Study Using Quadrupole ICP-MS

Retrospective Analysis of Anthropogenic Inputs of Lead and Other Heavy Metals to the Hawaiian Sedimentary Environment

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