Quantifying sediment-associated metal dispersal using Pb isotopes: Application of binary and multivariate mixing models at the catchment-scale

Bird, Graham; Brewer, Paul; Macklin, Mark G.; Nikolova, Mariyana; Kotsev, Tsvetan; Mollov, Mihail; Swain, Catherine Helena

doi:10.1016/j.envpol.2010.02.020

Cited by 40 publications

(13 citation statements)

References 44 publications

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“…As a result, well-defined mixing lines may not exist on binary scatter plots, and determining the relative contribution of Pb from the identified sources becomes much more difficult. However, where the Pb sources can be defined on the basis of isotopic ratios, statistically based mixing models may be used to determine the relative contributions of Pb to the river [168,169,172]. Bird et al [169], for example, were able to use a two-tiered approach to assess Pb provenance within the River Maritsa catchment of Bulgaria and Turkey.…”

Section: Pb/ 206mentioning

confidence: 99%

“…However, where the Pb sources can be defined on the basis of isotopic ratios, statistically based mixing models may be used to determine the relative contributions of Pb to the river [168,169,172]. Bird et al [169], for example, were able to use a two-tiered approach to assess Pb provenance within the River Maritsa catchment of Bulgaria and Turkey. Within smaller tributary basins, a binary approach was used to assess the contributions of Pb from mining operations to the alluvial sediments.…”

Section: Pb/ 206mentioning

confidence: 99%

“…In addition to examining the spatial variations in isotopic ratios along a channel, Pb sources are often identified by analyzing three-component scatter diagrams depicting differences between two isotopic ratios [64,[164][165][166][167][168][169][170]. When the values of the analyzed samples form a strong linear trend, Pb within the samples is often interpreted to be derived from two primary sources, where the sources exhibit minimum and/or maximum values of the examined ratios at the end of the line.…”

Section: Pb/ 206mentioning

confidence: 99%

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Forensic Assessment of Metal Contaminated Rivers in the 21st Century Using Geochemical and Isotopic Tracers

Miller

2013

Minerals

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Documentation of contaminant source and dispersal pathways in riverine environments is essential to mitigate the potentially harmful effects of contaminants on human and ecosystem health, and is required from a legal perspective (particularly where the polluter pays principle is in effect) in assessing site liability. Where multiple natural and/or anthropogenic sources exist, identification of contaminant provenance has proven problematic, and estimated contributions from a specific source are often the subject of judicial debate. The past, current, and future use of geochemical and isotopic tracers in environmental forensic investigations of contaminant provenance, transport, and fate are analyzed herein for sediment-associated trace metals in riverine environments, particularly trace metals derived from mining and refining operations. The utilized methods have evolved significantly over the past four decades. Of primary significance has been the growing integration of geomorphic and stratigraphic techniques with the use of an increasing number of geochemical tracers including stable isotopes. The isotopes of Pb have been particularly well studied, and have been applied to a wide range of environmental media. Advances in analytical chemistry since the early 1990s have allowed for the precise characterization of other non-traditional stable isotopic systems within geological materials. The potential for using these non-traditional isotopes as tracers in river systems has yet to be adequately explored, but a number of these isotopes (e.g., Cd, Cu, Cr, Hg, Sb, and Zn) show considerable promise. Moreover, some of these isotopes (e.g., those of Cu, Cr, and Hg) may provide important insights into biogeochemical cycling processes within aquatic environments. This review suggests that future environmental forensic investigations will be characterized by an interdisciplinary approach that combines the use of multiple geochemical tracers with detailed stratigraphic, geomorphic, and hydrologic data, thereby yielding results that are likely to withstand the scrutiny of judicial review.

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Section: Pb/ 206mentioning

confidence: 99%

Section: Pb/ 206mentioning

confidence: 99%

Section: Pb/ 206mentioning

confidence: 99%

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Forensic Assessment of Metal Contaminated Rivers in the 21st Century Using Geochemical and Isotopic Tracers

Miller

2013

Minerals

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“…In studies involving Pb and its isotopic signature, correlations have been established using both the total concentration (Ferrand et al 1999, Bindler et al 2001, Moraes et al 2004, Miller et al 2007, Gioia et al 2006, Dong et al 2010 and the exchangeable Pb fraction (Bird et al 2010;Gioia et al 2006). For the hydrographic system of Belém, results have been presented using either the total Pb (Santos et al 2012) or exchangeable Pb concentrations (Moura et al 2004).…”

Section: Total and Partial Concentration Of Pb (Exchangeable)mentioning

confidence: 99%

Distribution and isotopic composition of lead in bottom sediments from the hydrographic system of Belém, Pará (western margin of Guajará Bay and Carnapijó River)

et al. 2016

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This study first aimed to evaluate the effect of human activities on the distribution of lead within the estuarine system of Belém, Pará. This was achieved by studying the concentration and isotopic signature of Pb in bottom sediments from the western margin of Guajará Bay and from Carnapijó River, an area removed from the influence of the city of Belém. Secondly, the contribution of suspended matter in the transportation of anthropogenic Pb in Guajará Bay was evaluated. Third, the content and background isotopic signature of Pb in the hydrographic system of Belém was determined. Isotopic signatures of sediments from the western margin of Guajará Bay confirm an anthropogenic contribution of Pb throughout the entire bay. The Pb accumulation process has become more efficient over the last 10 years, and this can be attributed to the rapid population growth of Belém city. Sediments in Carnapijó River are not affected by human activities, and the average concentration values (Pb = 19.6 ± 3.7 mg kg -1 ) and isotopic signatures ( 206 Pb/ 207 Pb = 1.196 ± 0.004) confirm the background Pb values previously proposed for the river system in the Belém region. The isotopic signatures of suspended matter on the eastern ( 206 Pb/ 207 Pb = 1.188) and western ( 206 Pb/ 207 Pb = 1.174) margins of Guajará Bay show that suspended matter is an efficient Pb transportation mechanism of domestic and industrial wastewater from Belém to the western margin of the Bay due to tidal effects at the confluence with Guamá River.

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“…Preliminary data by Maring et al (1993) suggested that stable lead isotopes are effective in identifying aerosol sources from a variety of industrial lead emission sources in complex atmospheric systems. The isotopic composition of lead changes the ratio values depending on the different inputs of lead, distances from industrial areas, prevailing wind directions, and rainfall density (Bird et al, 2010).…”

Section: Methodology Justificationmentioning

confidence: 99%

Lead from mining and mineral processing activities to the community via the air-dust pathway: An example from Mount Isa city using human health risk assessment approach

Zheng¹

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This study followed the Australian human health risk assessment procedure from enHealth and utilised an innovative approach of integrated methodologies to study the impacts of lead on the Mount Isa community. The aim of this study was to identify the significant sources of lead via the air-dust pathway at Mount Isa and to estimate the potential impact of the air-dust pathway on human health by using a human health risk assessment approach. The two research questions derived from aims were related to the "issue identification" "hazard assessment" "exposure assessment" and "risk characterisation" of the risk assessment procedure.The first research question considered if lead-containing particulates were dispersed from mining operations via air-dust pathway to the community using a statistically representative set of houses in the Mount Isa City (n=67) to examine the spatial distribution of chemical and physical characteristics, including heavy metal and metalloid total concentrations, lead isotopic feature of the potential sources associated with historical mining and mineral processing activities. High resolution lead isotope ratios for natural outcrops, mine site samples, community samples indicated that roof gutter dust, fallout dust, soil PM 10 , and outdoor air particulates, floor, interior window sill, window trough, veranda wipe and indoor carpet dust showed close feature to lead isotopic characteristics of the mine site lead ore samples (mean 208 showed that Urquhart Shale outcrops were not significantly different (p > 0.05) from the mine site haul road dust (p = 0.89) and surface tailings (p = 0.36) and dust from the city residential area roof gutter dust (p = 0.06) and window trough wipes (p = 0.37) for lead isotopic ratios.The second research question of evaluating the significant lead exposure route was answered by considering if lead-containing particulates at Mount Isa were a significant lead exposure source via inhalation and ingestion routes in the community regarding human health exposure assessment.Total concentrations of lead in soil, air particulates, house wipes were compared with Australian and international health risk guidelines. Lead speciation by synchrotron-based X-ray absorption spectroscopy using X-ray absorption near edge structure (XANES) technique and bioaccessibility of lead in samples using the physiologically-based extraction test (

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Quantifying sediment-associated metal dispersal using Pb isotopes: Application of binary and multivariate mixing models at the catchment-scale

Cited by 40 publications

References 44 publications

Forensic Assessment of Metal Contaminated Rivers in the 21st Century Using Geochemical and Isotopic Tracers

Forensic Assessment of Metal Contaminated Rivers in the 21st Century Using Geochemical and Isotopic Tracers

Distribution and isotopic composition of lead in bottom sediments from the hydrographic system of Belém, Pará (western margin of Guajará Bay and Carnapijó River)

Lead from mining and mineral processing activities to the community via the air-dust pathway: An example from Mount Isa city using human health risk assessment approach

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