Origin of lead in the Gulf of California Ecoregion using stable isotope analysis

Soto-Jiménez, Martín F.; Flegal, A. Russell

doi:10.1016/j.gexplo.2008.07.003

Cited by 35 publications

(7 citation statements)

References 35 publications

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“…All 49 soil samples (0-20 cm depth from the surface) were collected using a stainless steel auger according to soil environmental monitoring technical specifications (HJ/T166-2004) [31]. The soil samples were collected regularly, with a sampling grid of about 500×500 m 2 but the sampling grid was dense, 200×200 m 2 in the vegetable gardens in the southeast.…”

Section: Sample Collection and Preparationmentioning

confidence: 99%

An integrated approach to assess heavy metal source apportionment in peri-urban agricultural soils

Huang

et al. 2015

Journal of Hazardous Materials

269

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Section: Sample Collection and Preparationmentioning

confidence: 99%

An integrated approach to assess heavy metal source apportionment in peri-urban agricultural soils

Huang

et al. 2015

Journal of Hazardous Materials

269

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“…In this study, concentrations of dissolved metals (dCu, dZn, dPb and dCd) in surface water of urban sections of the Grand Canal met the Class II of the Chinese Standards (Table ). However, there is a remarkable decline in concentrations of metals through the hydrologic gradient from urban street runoff to outflow river (Rose et al , ; Li et al , ), and the gradient of street dust to sediment (Soto‐Jiménez and Flegal, ). Shotbolt et al () pointed out that soils in catchments act as a sink for metals, especially soils with high contents of organic matter.…”

Section: Discussionmentioning

confidence: 99%

Urbanization Impairs Surface Water Quality: Eutrophication and Metal Stress in the Grand Canal of China

Liu

et al. 2011

River Research & Apps

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Rapid urbanization leads to degradations upon water quality via eutrophication and pollution, but there are a lack of studies on patterns of water quality change to urbanization by level or process. China has achieved the most rapid urbanization in the world within the past three decades, and its urban development is diverse at level. Nine towns and cities at various development levels along the historic Grand Canal (approximately 1500 years old) were selected to reveal direct linkages between surface water quality and extent of urbanization. Surface water quality in the urban sections of the Grand Canal was impaired by both eutrophic nitrogen and phosphorus and metals. Although metals mostly remained at concentrations permissible to the Chinese National Environmental Standard for Surface Water Quality (GB3838-2002), the concentrations of metals in most urban canal water might impose an unacceptable effect on aquatic communities according to the Criterion Continuous Concentration from the National Recommended Water Quality Criteria for Priority Toxic Pollutants (US EPA 2006). The loadings of metals in the urban canal were found relating to local industrial activities. The level of urbanization, in this study, was significantly related to water quality parameters in a descending order of electrical conductivity > nutrients > metals. This study suggests that significant mitigation strategies are required for the Grand Canal of China for a sustainable urbanization goal.

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“…Because combinations can only be examined in discrete steps, a small tolerance for deviation from exact matches is allowed 46 . These equations make interpretation of datasets with n isotope systems and more than n + 1 sources possible 45 , 46 , 49 . Outputs are generally presented as range values, to ensure that all potential combinations are reported 45 .…”

Section: Methodsmentioning

confidence: 99%

“…When IsoSource was developed, an initial attempt to apply it to pollution sourcing via Pb isotopes was made 46 . However, to our knowledge, little further work to further apply this method to the field has been done 49 , likely due to diffuse and poorly constrained outcome sources. Other approaches to Pb isotope modelling have been applied, with Euclidean distance calculation used to determine potential source(s) for archaeological artefacts 50 , 51 .…”

Section: Introductionmentioning

confidence: 99%

Quantitative assessment of Pb sources in isotopic mixtures using a Bayesian mixing model

Longman

Vereș

Ersek

et al. 2018

Sci Rep

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Lead (Pb) isotopes provide valuable insights into the origin of Pb within a sample, typically allowing for reliable fingerprinting of their source. This is useful for a variety of applications, from tracing sources of pollution-related Pb, to the origins of Pb in archaeological artefacts. However, current approaches investigate source proportions via graphical means, or simple mixing models. As such, an approach, which quantitatively assesses source proportions and fingerprints the signature of analysed Pb, especially for larger numbers of sources, would be valuable. Here we use an advanced Bayesian isotope mixing model for three such applications: tracing dust sources in pre-anthropogenic environmental samples, tracking changing ore exploitation during the Roman period, and identifying the source of Pb in a Roman-age mining artefact. These examples indicate this approach can understand changing Pb sources deposited during both pre-anthropogenic times, when natural cycling of Pb dominated, and the Roman period, one marked by significant anthropogenic pollution. Our archaeometric investigation indicates clear input of Pb from Romanian ores previously speculated, but not proven, to have been the Pb source. Our approach can be applied to a range of disciplines, providing a new method for robustly tracing sources of Pb observed within a variety of environments.

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Origin of lead in the Gulf of California Ecoregion using stable isotope analysis

Cited by 35 publications

References 35 publications

An integrated approach to assess heavy metal source apportionment in peri-urban agricultural soils

An integrated approach to assess heavy metal source apportionment in peri-urban agricultural soils

Urbanization Impairs Surface Water Quality: Eutrophication and Metal Stress in the Grand Canal of China

Quantitative assessment of Pb sources in isotopic mixtures using a Bayesian mixing model

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