Owen W Duckworth

Comparative dissolution of iron-bearing minerals by catecholate and hydroxamate siderophores under oxic and anoxic conditions

Guo, D., Sheng, Y., Duckworth, O. W., Kao, H.-M., Zhu, Z., Gooden, D. M., … Dong, H. (2026, January 11). Geochimica Et Cosmochimica Acta, Vol. 1.

High‐Resolution Soil Total Phosphorus Mapping for the Conterminous USA Using Machine Learning

Onwuka, I. S., Obenour, D. R., Nelson, N. G., & Duckworth, O. W. (2026, January 1). Journal of Geophysical Research Biogeosciences, Vol. 1.

Data from: High-resolution soil total phosphorus mapping for the conterminous USA using machine learning

Onwuka, I., Obenour, D., Nelson, N., & Duckworth, O. (2025, December 22). DRYAD, Vol. 12.

Degradation of catecholate, hydroxamate, and carboxylate model siderophores by extracellular enzymes

Chukwuma, C. E., Duckworth, O. W., & Baars, O. (2025, August 19). PLoS ONE, Vol. 20.

Impact of labile organic carbon and manganese oxide on chromium and vanadium subsurface mobility: evidence from laboratory incubation experiments

Balogun, F. O., Koeneke, M. W., Peel, H. R., Vinson, D. S., Duckworth, O. W., & Polizzotto, M. L. (2025, January 1). Environmental Science Processes & Impacts, Vol. 9.

Landscape Position and Burn Intensity Influence Heat-Induced Soil Chromium Contamination

Obeidy, C. S., Koeneke, M. W., Duckworth, O. W., Polizzotto, M. L., Obeidy, C. S., Koeneke, M. W., … Polizzotto, M. L. (2025, November 25). Environmental Science & Technology.

Predicting arsenic and manganese contamination in private well water with Machine Learning: An integrated analysis of geologic, well construction, and permitting data

Payton, A., Harrington, C. E., Miller, S. L., Colley, T., Serre, M. L., Fry, R. C., … Rager, J. E. (2025, November 18). The Science of The Total Environment.

Quantifying Summer Internal Phosphorus Loading in Large Lakes across the United States

Borah, S. S., Nelson, N. G., Duckworth, O. W., & Obenour, D. R. (2025, May 6). Zenodo (CERN European Organization for Nuclear Research).

Quantifying Summer Internal Phosphorus Loading in Large Lakes across the United States

Borah, S. S., Nelson, N. G., Duckworth, O. W., & Obenour, D. R. (2025, May 6). Zenodo (CERN European Organization for Nuclear Research).

Quantifying Summer Internal Phosphorus Loading in Large Lakes across the United States

Borah, S. S., Nelson, N. G., Duckworth, O. W., & Obenour, D. R. (2025, May 20). Environmental Science & Technology, Vol. 5.

Why Does Overapplication of Phosphorus Fertilizers Occur: Insights from North Carolina Farmers

Kile, L. K., Gatiboni, L., Osmond, D. L., Marshall, A.-M., Johnson, A., & Duckworth, O. W. (2025, March 12). Agriculture, Vol. 15.

Commercial compost amendments inhibit the bioavailability and plant uptake of per- and polyfluoroalkyl substances in soil-porewater-lettuce systems

Li, Y., Zhi, Y., Weed, R., Broome, S. W., Knappe, D. R. U., & Duckworth, O. W. (2024, March 29). Environment International, Vol. 186.

Contrasting Effects of Catecholate and Hydroxamate Siderophores on Molybdenite Dissolution

Guo, D., Sheng, Y., Baars, O., Duckworth, O. W., Chen, P., Zhu, Z., … Dong, H. (2024, December 16). Environmental Science & Technology, Vol. 12.

Contrasting plant-induced changes in heavy metals dynamics: Implications for phytoremediation strategies in estuarine wetlands

Ferreira, A. D., Queiroz, H. M., Boim, A. G. F., Duckworth, O. W., Otero, X. L., Bernardino, Â. F., & Ferreira, T. O. (2024, May 15). Ecotoxicology and Environmental Safety, Vol. 279.

Global-to-Local Dependencies in Phosphorus Mass Flows and Markets: Pathways to Improving System Resiliency in Response to Exogenous Shocks

Baker, J., Schunk, N., Scholz, M., Merck, A., Muenich, R. L., Westerhoff, P., … Mayer, B. K. (2024, May 7). Environmental Science & Technology Letters, Vol. 5, pp. 493–502.

Inactivation of siderophore iron‐chelating moieties by the fungal wheat root symbiont Pyrenophora biseptata

French, K. S., Chukwuma, E., Linshitz, I., Namba, K., Duckworth, O. W., Cubeta, M. A., & Baars, O. (2024, January 19). Environmental Microbiology Reports, Vol. 1.

Relationships between soil test phosphorus and county‐level agricultural surplus phosphorus

Journal of Environmental Quality, 53(6), 1127–1139.

Residential Garden Produce Harvested Near a Fluorochemical Manufacturer in North Carolina Can Be An Important Fluoroether Exposure Pathway

Meng, P., Sheppard, N., Joseph, S., Duckworth, O. W., Higgins, C. P., & Knappe, D. R. U. (2024, November 20). Journal of Agricultural and Food Chemistry, Vol. 11.

Seasonal drives on potentially toxic elements dynamics in a tropical estuary impacted by mine tailings

Ferreira, A. D., Duckworth, O. W., Queiroz, H. M., Nóbrega, G. N., Barcellos, D., Bernardino, Â. F., … Ferreira, T. O. (2024, May 17). Journal of Hazardous Materials, Vol. 474.

Sorption and Phase Associations of Chromate and Vanadate with Two Contrasting North Carolina Saprolites

Balogun, F. O., Peel, H. R., Austin, R. E., Okunlola, I. G., Vinson, D. S., Duckworth, O. W., & Polizzotto, M. L. (2024, December 3). Soil Systems, Vol. 8.

Stability of metal ion complexes with the synthetic phytosiderophore proline-2′-deoxymugineic acid

Evers, A., Kohn, J., Baars, O., Harrington, J. M., Namba, K., & Duckworth, O. W. (2024, August 28). BioMetals, Vol. 8.

Sugarcane straw biochar: effects of pyrolysis temperature on barite dissolution and Ba availability under flooded conditions

Viana, D. G., Soares, M. B., Alleoni, L. R. F., Filho, F. B. E., Duckworth, O. W., & Regitano, J. B. (2024, October 8). Biochar, Vol. 6.

The phosphorus challenge: biotechnology approaches for a sustainable phosphorus system

Elser, J. J., Call, D. F., Deaver, J. A., Duckworth, O. W., Mayer, B. K., McLamore, E., … Westerhoff, P. (2024, September 19). Current Opinion in Biotechnology, Vol. 90.

Tracing the Environmental Effects of Mineral Fertilizer Application with Trace Elements and Strontium Isotope Variations

Hill, R. C., Williams, G. D. Z., Wang, Z., Hu, J., El-Hasan, T., Duckworth, O. W., … Vengosh, A. (2024, May 9). Environmental Science & Technology Letters, Vol. 5.

Using Manganese Oxidizing Fungi to Recover Metals from Electronic Waste

Doydora, S. A., Baars, O., Cubeta, M., Duckworth, O., Urbieta, M. S., & Castro, L. (2024, January 20). Minerals, Vol. 14.

Evidence for the accumulation of toxic metal(loid)s in agricultural soils impacted from long-term application of phosphate fertilizer

Hu, J., Wang, Z., Williams, G. D. Z., Dwyer, G. S., Gatiboni, L., Duckworth, O. W., & Vengosh, A. (2023, October 27). The Science of The Total Environment, Vol. 907.

Perspective: Phosphorus monitoring must be rooted in sustainability frameworks spanning material scale to human scale

McLamore, E., Duckworth, O., Boyer, T. H., Marshall, A.-M., Call, D. F., Bhadha, J. H., & Guzmán, S. (2023, January 28). Water Research X, Vol. 19.

Pyrolysis temperature and biochar redox activity on arsenic availability and speciation in a sediment

Soares, M. B., Duckworth, O. W., Stýblo, M., Cable, P. H., & Alleoni, L. R. F. (2023, August 18). Journal of Hazardous Materials, Vol. 460.

The BESST REU: Promoting soil science learning and shifts in attitudes toward science

Overbay, A., Duckworth, O., & Heitman, J. L. (2023, January 30). Natural Sciences Education.

Bringing soil chemistry to environmental health science to tackle soil contaminants

Duckworth, O. W., Polizzotto, M. L., & Thompson, A. (2022, September 15). Frontiers in Environmental Science, Vol. 9.

Mechanisms of orthophosphate removal from water by lanthanum carbonate and other lanthanum-containing materials

Science of The Total Environment, 820, 153153.

The role of dissolved pyrogenic carbon from biochar in the sorption of As(V) in biogenic iron (oxyhydr)oxides

Soares, M. B., Duckworth, O. W., & Alleoni, L. R. F. (2022, December 29). The Science of The Total Environment, Vol. 865.

Towards Understanding Factors Affecting Arsenic, Chromium, and Vanadium Mobility in the Subsurface

Peel, H. R., Balogun, F. O., Bowers, C. A., Miller, C. T., Obeidy, C. S., Polizzotto, M. L., … Duckworth, O. W. (2022, November 15). Water, Vol. 14.

Influence of natural organic matter and pH on phosphate removal by and filterable lanthanum release from lanthanum-modified bentonite

Water Research, 202, 117399.

Salicylate coordination in metal-protochelin complexes

Doydora, S. A., Baars, O., Harrington, J. M., & Duckworth, O. W. (2021, November 27). BioMetals, Vol. 11.

The structure of natural biogenic iron (oxyhydr)oxides formed in circumneutral pH environments

Geochimica Et Cosmochimica Acta, 308, 237–255.

Accessing Legacy Phosphorus in Soils

Soil Systems, 4(4), 74.

Emerging lanthanum (III)-containing materials for phosphate removal from water: A review towards future developments

Environment International, 145, 106115.

Extraction and Detection of Structurally Diverse Siderophores in Soil

Rai, V., Fisher, N., Duckworth, O. W., & Baars, O. (2020, September 17). Frontiers in Microbiology, Vol. 11.

Rhizobium leguminosarum strain combination effects on nodulation and biological nitrogen fixation with Vicia villosa

Roper, W. R., Duckworth, O. W., Grossman, J. M., & Israel, D. W. (2020, July 13). Applied Soil Ecology, Vol. 156.

Soil and Water Iron Microbes in North Carolina (SWIMNC) Outreach: Positive Impact of Combining Classroom and Field Experiences to Promote Learning and Shift Attitudes

Andrews, M. Y., Whitaker, A. H., Sowers, T. D., & Duckworth, O. W. (2020, January 8). Frontiers in Education.

Spatially Resolved Organomineral Interactions across a Permafrost Chronosequence

Sowers, T. D., Wani, R. P., Coward, E. K., Fischel, M. H. H., Betts, A. R., Douglas, T. A., … Sparks, D. L. (2020, February 5). Environmental Science & Technology, Vol. 54, pp. 2951–2960.

Sorption of copper and phosphate to diverse biogenic iron (oxyhydr)oxide deposits

Field, H. R., Whitaker, A. H., Henson, J. A., & Duckworth, O. W. (2019, August 26). The Science of The Total Environment, Vol. 697.

Chemical variability of sediment and groundwater in a Pleistocene aquifer of Cambodia: Implications for arsenic pollution potential

Gillispie, E. C., Matteson, A. R., Duckworth, O. W., Neumann, R. B., Phen, N., & Polizzotto, M. L. (2018, November 20). Geochimica Et Cosmochimica Acta, Vol. 245, pp. 441–458.

Cr(vi) uptake and reduction by biogenic iron (oxyhydr)oxides

Whitaker, A. H., Peña, J., Amor, M., & Duckworth, O. W. (2018, January 1). Environmental Science Processes & Impacts, Vol. 20, pp. 1056–1068.

Cu, Pb, and Zn Sorption to Biogenic Iron (Oxyhydr)Oxides Formed in Circumneutral Environments

Whitaker, A., & Duckworth, O. (2018, March 31). Soil Systems, Vol. 2.

A two-column flash chromatography approach to pyoverdin production from Pseudomonas putida GB1

Duckworth, O. W., Markarian, D. S., Parker, D. L., & Harrington, J. M. (2017, February 2). Journal of Microbiological Methods.

Assessing Biomineral Formation by Iron‐oxidizing Bacteria in a Circumneutral Creek

Almaraz, N., Whitaker, A. H., Andrews, M. Y., & Duckworth, O. W. (2017, April 1). Journal of Contemporary Water Research & Education, Vol. 160, pp. 60–71.

Chemical Speciation of Potentially Toxic Trace Metals in Coal Fly Ash Associated with the Kingston Fly Ash Spill

Rivera, N., Hesterberg, D., Kaur, N., & Duckworth, O. W. (2017, July 18). Energy & Fuels, Vol. 31, pp. 9652–9659.

Commentary on “A possible trade-off between clean air and clean water” by Smith et al. (2017)

Robarge, W., Duckworth, O., Osmond, D., Smyth, J., & River, M. (2017, November 1). Journal of Soil and Water Conservation, Vol. 72, pp. 121A–122A.

Periphyton uptake and trophic transfer of coal fly-ash–derived trace elements

Scheibener, S. A., Rivera, N. A., Hesterberg, D., Duckworth, O. W., & Buchwalter, D. B. (2017, May 22). Environmental Toxicology and Chemistry, Vol. 36, pp. 2991–2996.

Revisiting Graduate Student Training to Address Agricultural and Environmental Societal Challenges

Agricultural & Environmental Letters, 2(1), 170019.

Siderophore and Organic Acid Promoted Dissolution and Transformation of Cr(III)-Fe(III)-(oxy)hydroxides

Saad, E. M., Sun, J., Chen, S., Borkiewicz, O. J., Zhu, M., Duckworth, O. W., & Tang, Y. (2017, February 21). Environmental Science & Technology, Vol. 51, pp. 3223–3232.

A universal assay for the detection of siderophore activity in natural waters

Andrews, M. Y., & Duckworth, O. (2016, November 5). BioMetals, Vol. 29, pp. 1085–1095.

Digital image quantification of siderophores on agar plates

Andrews, M. Y., Santelli, C. M., & Duckworth, O. W. (2016, February 3). Data in Brief, Vol. 6, pp. 890–898.

Morphology, structure, and metal binding mechanisms of biogenic manganese oxides in a superfund site treatment system

Duckworth, O. W., Rivera, N. A., Gardner, T. G., Andrews, M. Y., Santelli, C. M., & Polizzotto, M. L. (2016, December 1). Environmental Science Processes & Impacts, Vol. 19, pp. 50–58.

Soil Weathering as an Engine for Manganese Contamination of Well Water

Gillispie, E. C., Austin, R. E., Rivera, N. A., Bolich, R., Duckworth, O. W., Bradley, P., … Polizzotto, M. L. (2016, August 29). Environmental Science & Technology, Vol. 50, pp. 9963–9971.

Sorption of arsenic to biogenic iron (oxyhydr)oxides produced in circumneutral environments

Sowers, T. D., Harrington, J. M., Polizzotto, M. L., & Duckworth, O. W. (2016, November 14). Geochimica Et Cosmochimica Acta, Vol. 198, pp. 194–207.

A Comparison of the Sorption Reactivity of Bacteriogenic and Mycogenic Mn Oxide Nanoparticles

Droz, B., Dumas, N., Duckworth, O. W., & Peña, J. (2015, February 10). Environmental Science & Technology, Vol. 49, pp. 4200–4208.

Layer plate CAS assay for the quantitation of siderophore production and determination of exudation patterns for fungi

Andrews, M. Y., Santelli, C. M., & Duckworth, O. W. (2015, December 19). Journal of Microbiological Methods, Vol. 121, pp. 41–43.

Soil Pollution Due to Irrigation with Arsenic-Contaminated Groundwater: Current State of Science

Gillispie, E. C., Sowers, T. D., Duckworth, O. W., & Polizzotto, M. L. (2015, March 1). Current Pollution Reports, Vol. 1.

The fate of siderophores: antagonistic environmental interactions in exudate-mediated micronutrient uptake

Harrington, J. M., Duckworth, O. W., & Haselwandter, K. (2015, January 26). BioMetals, Vol. 28, pp. 461–472.

Transport of dissolved polyacrylamide through a clay loam soil

Kang, J., McLaughlin, R. A., Amoozegar, A., Heitman, J. L., & Duckworth, O. W. (2015, January 5). Geoderma, Vol. 243-244, pp. 108–114.

Chemical Composition, Speciation, and Elemental Associations in Coal Fly Ash Samples Related to the Kingston Ash Spill

Rivera, N., Kaur, N., Hesterberg, D., Ward, C. R., Austin, R. E., & Duckworth, O. W. (2014, December 23). Energy & Fuels, Vol. 29, pp. 954–967.

Metal oxyhydroxide dissolution as promoted by structurally diverse siderophores and oxalate

Akafia, M. M., Harrington, J. M., Bargar, J. R., & Duckworth, O. W. (2014, July 5). Geochimica Et Cosmochimica Acta, Vol. 141, pp. 258–269.

Metallophores and Trace Metal Biogeochemistry

Kraemer, S. M., Duckworth, O. W., Harrington, J. M., & Schenkeveld, W. D. C. (2014, November 12). Aquatic Geochemistry, Vol. 21, pp. 159–195.

Siderophore-promoted dissolution of chromium from hydroxide minerals

Duckworth, O. W., Akafia, M. M., Andrews, M. Y., & Bargar, J. R. (2014, January 1). Environmental Science Processes & Impacts, Vol. 16, pp. 1348–1359.

Dissolution of phosphorus into pore-water flowing through an organic soil

Abit, S. M., Vepraskas, M. J., Duckworth, O. W., & Amoozegar, A. (2013, January 24). Geoderma, Vol. 197, pp. 51–58.

Quantum mechanical investigation of aqueous desferrioxamine B metal complexes: Trends in structure, binding, and infrared spectroscopy

Kruft, B. I., Harrington, J. M., Duckworth, O. W., & Jarzęcki, A. A. (2013, August 31). Journal of Inorganic Biochemistry, Vol. 129, pp. 150–161.

Turbidimetric Determination of Anionic Polyacrylamide in Low Carbon Soil Extracts

Kang, J., Sowers, T. D., Duckworth, O. W., Amoozegar, A., Heitman, J. L., & McLaughlin, R. A. (2013, November 1). Journal of Environmental Quality, Vol. 42, pp. 1902–1907.

Hydronium-Promoted Equilibrium Mechanism for the Alkali Metal Cation Exchange Reaction in Na-4-Mica

Park, M., Kim, H.-J., Kim, K. S., Duckworth, O. W., & Komarneni, S. (2012, August 2). The Journal of Physical Chemistry C, Vol. 116, pp. 18678–18683.

Relationships Between Nitrogen Transformation Rates and Gene Abundance in a Riparian Buffer Soil

Environmental Management, 50(5), 861–874.

Structural dependence of Mn complexation by siderophores: Donor group dependence on complex stability and reactivity

Harrington, J. M., Parker, D. L., Bargar, J. R., Jarzecki, A. A., Tebo, B. M., Sposito, G., & Duckworth, O. W. (2012, April 21). Geochimica Et Cosmochimica Acta, Vol. 88, pp. 106–119.

Trace metal complexation by the triscatecholate siderophore protochelin: structure and stability

Harrington, J. M., Bargar, J. R., Jarzecki, A. A., Roberts, J. G., Sombers, L. A., & Duckworth, O. W. (2011, December 20). BioMetals, Vol. 25, pp. 393–412.

Siderophore-promoted dissolution of cobalt from hydroxide minerals

Bi, Y., Hesterberg, D. L., & Duckworth, O. W. (2010, March 3). Geochimica Et Cosmochimica Acta, Vol. 74, pp. 2915–2925.

Synergistic Dissolution of Manganese Oxides as Promoted by Siderophores and Small Organic Acids

Saal, L. B., & Duckworth, O. W. (2010, October 29). Soil Science Society of America Journal, Vol. 74, pp. 2021–2031.

Coupled biogeochemical cycling of iron and manganese as mediated by microbial siderophores

Duckworth, O. W., Bargar, J. R., & Sposito, G. (2009, February 23). BioMetals, Vol. 22, pp. 605–613.