David William O'Connell

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Assistant Professor

Trinity College Dublin

Ireland

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About

David William O'Connell is an Assistant Professor at Trinity College Dublin, Ireland. His research areas focus on environmental science, particularly in water pollution, sediment dynamics, and isotopic tracing. Recent publications include studies on the quantification of iron phases in freshwater sediments and the impact of agricultural practices on water quality.

Recent Grants

Grant: Close

(GRADS & SMARTS) GRoundwater Age DistributionS for the Sustainable MAnagement of gRoundwaTer reSources in Ireland

Open Date: 2022-01-01

Close Date: 2026-01-01

Grant: Close

(NuReCycle) Diffuse Water Pollution: NUtrient capture REcovery and reCycling systems

Open Date: 2021-01-01

Close Date: 2026-01-01

Grant: Close

(Eutro-SED) Eutrophication hotspots resulting from biogeochemical transformations and bioavailability of phosphorus in the fluvial suspended sediment of geologically contrasting agricultural catchments

Open Date: 2017-04-01

Close Date: 2020-03-01

Grant: Close

Fluorescence-based tracking of particles from domestic wastewater treatment system plumes discharging to springs in Karst aquifer systems.

Open Date: 2017-01-01

Close Date: 2018-01-01

Grant: Close

Characteristics of stable isotope fractionations during reactive transport of phosphate in groundwater discharging to a groundwater fed lake (Lough Gur, Co Limerick)

Open Date: 2016-01-01

Close Date: 2017-01-01

Articles (15)

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2025

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2023

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2023

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2022

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2022

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2022

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2022

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2021

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2020

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2020

Collaborators (12)

Simon David Herzog

Lund University

SWEDEN

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Merrin Macrae

Professor

University of Waterloo

CANADA

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Hans Christian Bruun Hansen

Københavns Universitet

DENMARK

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Diane Orihel

Assistant Professor/Queen's National Scholar in Aquatic Ecotoxicology

Queen's University

CANADA

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eve daly

IRELAND

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Laurence Gill

IRELAND

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James Byrne

University of Bristol

UNITED KINGDOM

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Marlene Mark Jensen

Technical University of Denmark

DENMARK

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Hampus Markensten

Swedish University of Agricultural Sciences

SWEDEN

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Luka Vucinic

Glasgow Caledonian University

UNITED KINGDOM

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Søren Jessen

Associate Professor

University of Copenhagen

DENMARK

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Yifan Sun

Trinity College Dublin

IRELAND

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David William O'Connell

Research Interests

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About

Recent Grants

Articles (15)

Multi-stable isotope tracing of elevated sulfate export from a forested headwater wetland following an induced flood pulse event

Isotopic Exchange between Aqueous Fe(II) and Solid Fe(III) in Lake Sediment─A Kinetic Assemblage Approach

Evaluation of a modified sequential P extraction protocol: Quantification of Fe(II)‐P as a separate phase in seven different freshwater sediments

Back to the future: Comparing yeast as an outmoded artificial tracer for simulating microbial transport in karst aquifer systems to more modern approaches

The use of sterol profiles, supported with other faecal source tracking methods, to apportion septic tanks contamination in rural catchments

An integrated mitigation approach to diffuse agricultural water pollution–a scoping review

Distributed dynamic modelling of suspended sediment mobilization and transport from small agricultural catchments

Multiple fluorescence approaches to identify rapid changes in microbial indicators at karst springs

Application of visible light active photocatalysis for water contaminants: A review

Characterization of seasonal groundwater origin and evolution processes in a geologically heterogeneous catchment using geophysical, isotopic and hydro‐chemical techniques (Lough Gur, Ireland)

Flow Cytometry and Fecal Indicator Bacteria Analyses for Fingerprinting Microbial Pollution in Karst Aquifer Systems

Analysis of oxygen isotopes of inorganic phosphate (δ18Op) in freshwater: A detailed method description for obtaining oxygen isotopes of inorganic phosphate in environmental water samples

An assessment of contamination fingerprinting techniques for determining the impact of domestic wastewater treatment systems on private well supplies

Speciation of Phosphorus from Suspended Sediment Studied by Bulk and Micro-XANES

Changes in Sedimentary Phosphorus Burial Following Artificial Eutrophication of Lake 227, Experimental Lakes Area, Ontario, Canada

Collaborators (12)

Simon David Herzog

Merrin Macrae

Hans Christian Bruun Hansen

Diane Orihel

eve daly

Laurence Gill

James Byrne

Marlene Mark Jensen

Hampus Markensten

Luka Vucinic

Søren Jessen

Yifan Sun

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