Dr Anthony Umeh

Dr Anthony Umeh

Research Associate

Global Centre for Environmental Remediation

Career Summary

Biography

Dr. Anthony Umeh’s is an environmental scientist with significant experience in contaminant fate and transport in soils, including contaminant bioavailability and bioaccessibility. His research seeks to understand the fate and behaviour of chemical contaminants after their release in soils and how living organisms are exposed to these contaminants, including potential health risks from such exposures and strategies to manage those risks.

He has experience investigating the bioaccessibilty of highly sequestered polycyclic aromatic hydrocarbon (PAH) residues in long-term contaminated soils, and he has evaluated associated cancer risks to human and ecological health from potential exposure to PAH non extractable residues in soil. He has also studied the fate of PAHs during plant-assisted biodegradation using  C-14 respirometry.

Dr. Umeh is currently leading a project focusing on the fate and behaviour, particularly sorption (retention) and desorption (release), of PFAS in a wide range of temperate and tropical soils.

Since 2015, Dr. Umeh’s has presented at international contaminated land conferences featuring environmental regulators, industry participants, scientists, and other stakeholders in the contaminated land space. He has published over 10 peer-reviewed papers in top scientific journals.

Dr. Umeh’s research is contributing to minimising the uncertainties associated with PFAS fate and transport in soils, as well as helping to understand the science underpinning potential PFAS exposures through surface and subsurface soils, as well as surface and groundwater. Such understanding will help contaminated land stakeholders in Australia and beyond to make effective risk-based decisions for cost-effective management of PFAS-contaminated land.

Open to discussing potential collaboration and supervision opportunities on exciting projects.


Qualifications

  • PhD (Environmental Remediation), University of Newcastle
  • Bachelor of Science (Zoology) (Honours), Obafemi Awolowo University, Nigeria
  • Master of Science, Lancaster University - England

Keywords

  • Contaminant Bioaccessibility
  • Contaminant Bioavailability
  • Emerging Contaminants
  • Environmental Health Risk Assessment
  • Human Health Risk Assessment
  • Hydrophobic Organic Contaminant Residues
  • Per- and Polyfluoroalkyl Chemicals
  • Polycyclic Aromatic Hydrocarbons
  • Risk-based Contaminated Land Management
  • Soil

Languages

  • Igbo (Mother)
  • English (Fluent)
  • Yoruba (Fluent)
  • Hausa (Working)

Professional Experience

UON Appointment

Title Organisation / Department

Awards

Distinction

Year Award
2020 Distinguished Global Talent
Australian Government

Invitations

Participant

Year Title / Rationale
2019 International Workshop on Science Diplomacy and Innovation Diplomacy
I was one of the 40 researchers (and 2 from Australia) selected through a competitive process from a pool of over 1000 global applicants by the Advanced School of Science and Innovation Diplomacy Sao Paulo to attend the 10-day international workshop on science and innovation diplomacy at the University of Sao Paulo, Brazil. As a result of my participation at the workshop, I have an understanding and am developing an international network in the field of science and innovation diplomacy, valuable for successful scientific cooperation  and collaborations in Australia and beyond.
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Publications

For publications that are currently unpublished or in-press, details are shown in italics.

Highlighted Publications

Year Citation Altmetrics Link
2017 Umeh AC, Duan L, Naidu R, Semple KT, 'Residual hydrophobic organic contaminants in soil: Are they a barrier to risk-based approaches for managing contaminated land?', ENVIRONMENT INTERNATIONAL, 98 18-34 (2017) [C1]
DOI 10.1016/j.envint.2016.09.025
Citations Scopus - 25Web of Science - 20
Co-authors Ravi Naidu, Luchun Duan
2018 Umeh AC, Duan L, Naidu R, Semple KT, 'Time-Dependent Remobilisation of Non-Extractable Benzo[a]pyrene Residues in Contrasting Soils: Effects of Aging, Spiked Concentration, and Soil Properties.', ENVIRONMENTAL SCIENCE & TECHNOLOGY, 52 12295-12305 (2018) [C1]
DOI 10.1021/acs.est.8b03008
Citations Scopus - 12Web of Science - 10
Co-authors Luchun Duan, Ravi Naidu
2019 Umeh AC, Duan L, Naidu R, Esposito M, Semple KT, 'In vitro gastrointestinal mobilization and oral bioaccessibility of PAHs in contrasting soils and associated cancer risks: Focus on PAH nonextractable residues', Environment International, 133 (2019) [C1]
DOI 10.1016/j.envint.2019.105186
Citations Scopus - 6Web of Science - 4
Co-authors Ravi Naidu, Luchun Duan

Chapter (2 outputs)

Year Citation Altmetrics Link
2020 Wijayawardena MAA, Liu Y, Yan K, Duan L, Umeh AC, Naidu R, Semple KT, 'Assessment of the Oral Bioavailability of Organic Contaminants in Humans', Handbook of Environmental Chemistry 191-218 (2020) [B1]

© 2020, Springer Nature Switzerland AG. Bioavailability estimates the actual internal uptake or absorption of contaminants that enter the body (internal dose) and helps in providi... [more]

© 2020, Springer Nature Switzerland AG. Bioavailability estimates the actual internal uptake or absorption of contaminants that enter the body (internal dose) and helps in providing a more accurate estimation of the human risks than the usage of total concentration. This is important for exposure assessment for children in relation to their hand-to-mouth activities. For example significant reductions of the bioavailability of long-term contaminated soils have been demonstrated using various animal models. The measurement for bioavailability involves various uncertainties for organic contaminants. It is crucial to determine the parameters that influence the results of bioavailability. This chapter provides a summary of the current state of knowledge for the determination of bioavailability for a range of organic contaminants. The information provided will be useful in facilitating further research efforts for the investigation of bioavailability of contaminants in conducting exposure assessments.

DOI 10.1007/698_2020_596
Co-authors Luchun Duan, Ravi Naidu, Yanju Liu, Ayanka Wijayawardena
2020 Umeh AC, Naidu R, Owojori OJ, Semple KT, 'Bioavailability and Bioaccessibility of Hydrophobic Organic Contaminants in Soil and Associated Desorption-Based Measurements', Bioavailability of Organic Chemicals in Soil and Sediment, Springer Nature, Switzerland 293-350 (2020) [B1]
DOI 10.1007/698_2020_521
Citations Scopus - 2
Co-authors Ravi Naidu

Journal article (11 outputs)

Year Citation Altmetrics Link
2021 Umeh AC, Naidu R, Shilpi S, Boateng EB, Rahman A, Cousins IT, et al., 'Sorption of PFOS in 114 Well-Characterized Tropical and Temperate Soils: Application of Multivariate and Artificial Neural Network Analyses.', Environ Sci Technol, 55 1779-1789 (2021)
DOI 10.1021/acs.est.0c07202
Co-authors Ravi Naidu, Dane Lamb, Sreenivasulu Chadalavada, Emmanuel Boateng Uon
2020 Naidu R, Nadebaum P, Fang C, Cousins I, Pennell K, Conder J, et al., 'Per- and poly-fluoroalkyl substances (PFAS): Current status and research needs', Environmental Technology and Innovation, 19 (2020) [C1]
DOI 10.1016/j.eti.2020.100915
Citations Scopus - 4Web of Science - 2
Co-authors Fangjie Qi, Dawit Bekele, Megh Mallavarapu, Ravi Naidu, Cheng Fang, Yanju Liu, Sreenivasulu Chadalavada, Luchun Duan
2019 Umeh AC, Panneerselvan L, Duan L, Naidu R, Semple KT, 'Bioaccumulation of benzo[a]pyrene nonextractable residues in soil by Eisenia fetida and associated background-level sublethal genotoxicity (DNA single-strand breaks)', Science of the Total Environment, 691 605-610 (2019) [C1]
DOI 10.1016/j.scitotenv.2019.07.045
Citations Scopus - 7Web of Science - 6
Co-authors Luchun Duan, Ravi Naidu, Logeshwaran Panneerselvan
2019 Umeh AC, Duan L, Naidu R, Semple KT, 'Extremely small amounts of B[a]P residues remobilised in long-term contaminated soils: A strong case for greater focus on readily available and not total-extractable fractions in risk assessment', Journal of Hazardous Materials, 368 72-80 (2019) [C1]
DOI 10.1016/j.jhazmat.2019.01.030
Citations Scopus - 5Web of Science - 3
Co-authors Ravi Naidu, Luchun Duan
2019 Umeh AC, Duan L, Naidu R, Esposito M, Semple KT, 'In vitro gastrointestinal mobilization and oral bioaccessibility of PAHs in contrasting soils and associated cancer risks: Focus on PAH nonextractable residues', Environment International, 133 (2019) [C1]
DOI 10.1016/j.envint.2019.105186
Citations Scopus - 6Web of Science - 4
Co-authors Ravi Naidu, Luchun Duan
2018 Umeh AC, Vázquez-Cuevas GM, Semple KT, 'Mineralisation of ¹4C-phenanthrene in PAH-diesel contaminated soil: Impact of Sorghum bicolor and Medicago sativa mono- or mixed culture', Applied Soil Ecology, 125 46-55 (2018) [C1]
DOI 10.1016/j.apsoil.2017.12.010
Citations Scopus - 2Web of Science - 2
2018 Umeh AC, Duan L, Naidu R, Semple KT, 'Comparison of Single- and Sequential-Solvent Extractions of Total Extractable Benzo[a]pyrene Fractions in Contrasting Soils', Analytical Chemistry, 90 11703-11709 (2018) [C1]
DOI 10.1021/acs.analchem.8b03387
Citations Scopus - 7Web of Science - 6
Co-authors Ravi Naidu, Luchun Duan
2018 Umeh AC, Duan L, Naidu R, Semple KT, 'Enhanced Recovery of Nonextractable Benzo[a]pyrene Residues in Contrasting Soils Using Exhaustive Methanolic and Nonmethanolic Alkaline Treatments', Analytical Chemistry, 90 13104-13111 (2018) [C1]
DOI 10.1021/acs.analchem.8b04440
Citations Scopus - 4Web of Science - 3
Co-authors Luchun Duan, Ravi Naidu
2018 Umeh AC, Duan L, Naidu R, Semple KT, 'Time-Dependent Remobilisation of Non-Extractable Benzo[a]pyrene Residues in Contrasting Soils: Effects of Aging, Spiked Concentration, and Soil Properties.', ENVIRONMENTAL SCIENCE & TECHNOLOGY, 52 12295-12305 (2018) [C1]
DOI 10.1021/acs.est.8b03008
Citations Scopus - 12Web of Science - 10
Co-authors Luchun Duan, Ravi Naidu
2017 Umeh AC, Duan L, Naidu R, Semple KT, 'Residual hydrophobic organic contaminants in soil: Are they a barrier to risk-based approaches for managing contaminated land?', ENVIRONMENT INTERNATIONAL, 98 18-34 (2017) [C1]
DOI 10.1016/j.envint.2016.09.025
Citations Scopus - 25Web of Science - 20
Co-authors Ravi Naidu, Luchun Duan
Bekele DN, Liu Y, Donaghey M, Umeh A, Arachchige CSV, Chadalavada S, Naidu R, 'Separation and Lithological Mapping of PFAS Mixtures in the Vadose Zone at a Contaminated Site', Frontiers in Water, 2 [C1]
DOI 10.3389/frwa.2020.597810
Co-authors Sreenivasulu Chadalavada, Dawit Bekele, Yanju Liu, Ravi Naidu
Show 8 more journal articles

Conference (1 outputs)

Year Citation Altmetrics Link
2018 Umeh A, Duan L, Semple K, Naidu R, 'Remobilisation of 'non-extractable' Benzo[a]pyrene residues in contrasting Australian soils', ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, Boston, MA (2018)
Co-authors Luchun Duan, Ravi Naidu
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Dr Anthony Umeh

Position

Research Associate
Global Centre for Environmental Remediation
College of Engineering, Science and Environment

Contact Details

Email anthony.umeh@newcastle.edu.au
Phone (02) 405 53252
Link Twitter

Office

Room ATC Building, Level 1
Building Advanced Technology Centre (ATC) Building
Location Callaghan
University Drive
Callaghan, NSW 2308
Australia
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