Edward A. Boyle
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View article: Environmental lead risk in the 21st century
Environmental lead risk in the 21st century Open
Lead has been central to technological development for centuries; however, its release into the environment and subsequent human exposure pose significant public health risks. The review presented here critically assesses the contemporary …
View article: Meridional Central Pacific Ocean Depth Section for Pb and Pb Isotopes (GEOTRACES GP15, 152°W, 56°N to 20°S) Including Shipboard Aerosols
Meridional Central Pacific Ocean Depth Section for Pb and Pb Isotopes (GEOTRACES GP15, 152°W, 56°N to 20°S) Including Shipboard Aerosols Open
Most oceanic lead (Pb) is from anthropogenic emissions into the atmosphere deposited into surface waters, mostly during the past two centuries. The space‐ and time‐dependent emission patterns of anthropogenic Pb (and its isotope ratios) co…
View article: Kinetic Isotope Effects During Reduction of Fe(III) to Fe(II): Large Normal and Inverse Isotope Effects for Abiotic Reduction and Smaller Fractionations by Phytoplankton in Culture
Kinetic Isotope Effects During Reduction of Fe(III) to Fe(II): Large Normal and Inverse Isotope Effects for Abiotic Reduction and Smaller Fractionations by Phytoplankton in Culture Open
Iron stable isotopes (δ 56 Fe) are a useful tool for studying Earth processes, many of which involve redox transformations between Fe(III) and Fe(II). Here, we present two related experimental efforts, a study of the kinetic isotope effect…
View article: Isotopes illustrate vertical transport of anthropogenic Pb by reversible scavenging within Pacific Ocean particle veils
Isotopes illustrate vertical transport of anthropogenic Pb by reversible scavenging within Pacific Ocean particle veils Open
Reversible scavenging, the oceanographic process by which dissolved metals exchange onto and off sinking particles and are thereby transported to deeper depths, has been well established for the metal thorium for decades. Reversible scaven…
View article: Dissolved Lead (Pb) Concentrations and Pb Isotope Ratios Along the East China Sea and Kuroshio Transect—Evidence for Isopycnal Transport and Particle Exchange
Dissolved Lead (Pb) Concentrations and Pb Isotope Ratios Along the East China Sea and Kuroshio Transect—Evidence for Isopycnal Transport and Particle Exchange Open
Lead (Pb) isotopes are widely used in tracing processes that transport Pb within the environment due to the globally spread Pb pollution. In today’s ocean, Pb is mainly sourced from anthropogenic emissions and is removed by particle scaven…
View article: Boundary exchange completes the marine Pb cycle jigsaw
Boundary exchange completes the marine Pb cycle jigsaw Open
Material fluxes at the land–ocean interface impact seawater composition and global cycling of elements. However, most attention has been focused on the fluvial dissolved fluxes. For elements like lead (Pb), whose fluvial particulate flux i…
View article: A quest for a new paleoredox proxy: cold-water corals & chromium isotopes
A quest for a new paleoredox proxy: cold-water corals & chromium isotopes Open
Ocean deoxygenation is one of the big impacts of climate change.Ocean oxygen levels have been decreasing for the past 50 years and ocean models suggest they will continue to decrease into the future.This decrease greatly impacts the ocean …
View article: Trivalent chromium isotopes in the eastern tropical North Pacific oxygen-deficient zone
Trivalent chromium isotopes in the eastern tropical North Pacific oxygen-deficient zone Open
Significance Chromium isotopes have been used to study ancient earth atmospheric oxygen levels and seem promising as a paleoredox proxy. However, few studies have focused on its cycling in the modern ocean. Here we analyzed samples from ox…
View article: A Lagrangian View of Trace Elements and Isotopes in the North Pacific
A Lagrangian View of Trace Elements and Isotopes in the North Pacific Open
Ocean time‐series sites are influenced by both temporal variability, as in situ conditions change, as well as spatial variability, as water masses move across the fixed observation point. To remove the effect of spatial variability, this s…
View article: Surface water total dissolvable lead concentrations near Station ALOHA from 1997 to 2013
Surface water total dissolvable lead concentrations near Station ALOHA from 1997 to 2013 Open
Lead samples from 1997
View article: Dissolved Pb concentration data from the US GEOTRACES Arctic Expedition (GN01, HLY1502) from August to October 2015
Dissolved Pb concentration data from the US GEOTRACES Arctic Expedition (GN01, HLY1502) from August to October 2015 Open
Arctic Expedition (GN01, HLY1502).
View article: Introduction to the French GEOTRACES North Atlantic Transect (GA01): GEOVIDE cruise
Introduction to the French GEOTRACES North Atlantic Transect (GA01): GEOVIDE cruise Open
The GEOVIDE cruise, a collaborative project within the framework of the international GEOTRACES programme, was conducted along the French-led section in the North Atlantic Ocean (Section GA01), between 15 May and 30 June 2014. In this spec…
View article: Dissolved Pb and Pb isotopes in the North Atlantic from the GEOVIDE transect (GEOTRACES GA-01) and their decadal evolution
Dissolved Pb and Pb isotopes in the North Atlantic from the GEOVIDE transect (GEOTRACES GA-01) and their decadal evolution Open
During the 2014 GEOVIDE transect, seawater samples were collected for dissolved Pb and Pb isotope analysis. These samples provide a high-resolution “snapshot” of the source regions for the present Pb distribution in the North Atlantic Ocea…
View article: The GEOTRACES Intermediate Data Product 2017
The GEOTRACES Intermediate Data Product 2017 Open
The GEOTRACES Intermediate Data Product 2017 (IDP2017) is the second publicly available data product of the international GEOTRACES programme, and contains data measured and quality controlled before the end of 2016. The IDP2017 includes d…
View article: Supplementary material to "Introduction to the French GEOTRACES North Atlantic Transect (GA01): GEOVIDE cruise"
Supplementary material to "Introduction to the French GEOTRACES North Atlantic Transect (GA01): GEOVIDE cruise" Open
Supplementary material 1: Analyses of the concentrations of macro-nutrients (nitrate, NO 3 ; nitrite, NO 2 ; and silicic acid, Si(OH) 4 ), biogenic silica (BSi), and particulate organic carbon and nitrogen (POC and PON). Sampling:The GEOVI…
View article: Introduction to the French GEOTRACES North Atlantic Transect (GA01): GEOVIDE cruise
Introduction to the French GEOTRACES North Atlantic Transect (GA01): GEOVIDE cruise Open
The GEOVIDE cruise, a collaborative project within the framework of the international GEOTRACES programme, was conducted along the French-led section in the North Atlantic Ocean (Section GA01), between 15 May and 30 June 2014. In this Spec…
View article: Dissolved Pb and Pb isotopes in the North Atlantic from the GEOVIDE transect (GEOTRACES GA-01) and their decadal evolution
Dissolved Pb and Pb isotopes in the North Atlantic from the GEOVIDE transect (GEOTRACES GA-01) and their decadal evolution Open
During the 2014 GEOVIDE transect, seawater samples were collected for dissolved Pb and Pb isotope analysis. These samples provide a high resolution snapshot of the source regions for the present Pb distribution in the North Atlantic Ocean.…
View article: Chronology of anthropogenic impacts reconstructed from sediment records of trace metals and Pb isotopes in Todos os Santos Bay (NE Brazil)
Chronology of anthropogenic impacts reconstructed from sediment records of trace metals and Pb isotopes in Todos os Santos Bay (NE Brazil) Open
The evolution of the impacts of anthropogenic activities in Todos os Santos Bay was evaluated by profiles of trace metals and Pb isotopes determined in sediment cores. Fluxes of metals increased up to 12, 4 and 2 times for Cu, Pb, and Zn, …
View article: Lead isotope data collected from the R/V Pourquoi pas (GEOVIDE) in the North Atlantic, Labrador Sea (section GA01) during 2014
Lead isotope data collected from the R/V Pourquoi pas (GEOVIDE) in the North Atlantic, Labrador Sea (section GA01) during 2014 Open
R/V Pourquoi pas (GEOVIDE) in the North Atlantic, Labrador Sea (section GA01) during 2014
View article: Dissolved lead data collected from the R/V Pourquoi pas (GEOVIDE) in the North Atlantic, Labrador Sea (section GA01) during 2014
Dissolved lead data collected from the R/V Pourquoi pas (GEOVIDE) in the North Atlantic, Labrador Sea (section GA01) during 2014 Open
R/V Pourquoi pas (GEOVIDE) in the North Atlantic, Labrador Sea (section GA01) during 2014