Articles | Volume 24, issue 4
https://doi.org/10.5194/hess-24-2167-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/hess-24-2167-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
30 Apr 2020
Research article |
| 30 Apr 2020
| 30 Apr 2020
Isotopic and chromatographic fingerprinting of the sources of dissolved organic carbon in a shallow coastal aquifer
Australian Nuclear Science and Technology Organisation, Lucas Heights, NSW 2234, Australia
Connected Waters Initiative Research Centre, UNSW Sydney, High St., Kensington, New South Wales 2052, Australia
Andy Baker
Connected Waters Initiative Research Centre, UNSW Sydney, High St., Kensington, New South Wales 2052, Australia
School of Biological, Earth and Environmental Sciences, UNSW Sydney, High St., Kensington, New South Wales 2052, Australia
Martin S. Andersen
Connected Waters Initiative Research Centre, UNSW Sydney, High St., Kensington, New South Wales 2052, Australia
School of Civil and Environmental Engineering, UNSW Sydney, High St., Kensington, New South Wales 2052, Australia
Denis M. O'Carroll
Connected Waters Initiative Research Centre, UNSW Sydney, High St., Kensington, New South Wales 2052, Australia
School of Civil and Environmental Engineering, UNSW Sydney, High St., Kensington, New South Wales 2052, Australia
Helen Rutlidge
Connected Waters Initiative Research Centre, UNSW Sydney, High St., Kensington, New South Wales 2052, Australia
School of Civil and Environmental Engineering, UNSW Sydney, High St., Kensington, New South Wales 2052, Australia
Liza K. McDonough
Connected Waters Initiative Research Centre, UNSW Sydney, High St., Kensington, New South Wales 2052, Australia
School of Biological, Earth and Environmental Sciences, UNSW Sydney, High St., Kensington, New South Wales 2052, Australia
Phetdala Oudone
Connected Waters Initiative Research Centre, UNSW Sydney, High St., Kensington, New South Wales 2052, Australia
School of Biological, Earth and Environmental Sciences, UNSW Sydney, High St., Kensington, New South Wales 2052, Australia
Eliza Bryan
Golder Associates, 124 Pacific Highway, St.
Leonards, Sydney, New South Wales 2065, Australia
Nur Syahiza Zainuddin
Faculty of Civil Engineering, Universiti Teknologi MARA, Shah Alam,
Selangor, Malaysia
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Cited
12 citations as recorded by crossref.
- New method for simultaneous determination of dissolved organic carbon and its stable carbon isotope ratio in liquid samples: environmental applications F. Rampazzo et al. 10.1080/10256016.2022.2047040
- Ecohydrology of coastal aquifers in humid environments and implications of a drying climate M. Dyring et al. 10.1002/eco.2491
- Characterisation of groundwater dissolved organic matter using LC OCD: Implications for water treatment H. Rutlidge et al. 10.1016/j.watres.2020.116422
- Response of Nitrate Processing to Bio-labile Dissolved Organic Matter Supply Under Variable Oxygen Conditions in a Sandy Beach Seepage Face S. Jiang et al. 10.3389/fmars.2021.642143
- Development and Application of a Hydrogeochemical Model for the Groundwater Treatment Process in Waterworks R. Yan et al. 10.3390/w14132103
- Molecular Traits of Dissolved Organic Matter in the Subterranean Estuary of a High-Energy Beach: Indications of Sources and Sinks H. Waska et al. 10.3389/fmars.2021.607083
- Using water quality and isotope studies to inform research in chronic kidney disease of unknown aetiology endemic areas in Sri Lanka C. Nikagolla et al. 10.1016/j.scitotenv.2020.140896
- Large-scale study on groundwater dissolved organic matter reveals a strong heterogeneity and a complex microbial footprint A. Harjung et al. 10.1016/j.scitotenv.2022.158542
- Sources and Processing of Dissolved Organic Matter in a Microtidal Subterranean Estuary K. Amoako et al. 10.1007/s12237-025-01608-y
- Variations in the dissolved carbon concentrations of the shallow groundwater in a desert inland river basin J. Xu et al. 10.1016/j.jhydrol.2021.126774
- Assessing the Interaction Between Geologically Sourced Hydrocarbons and Thermal–Mineral Groundwater: An Overview of Methodologies V. Stavropoulou et al. 10.3390/w17131940
- Stable isotope method for tracing oil sands bitumen sources, differentiating δ13C in four carbon fractions in water and acid-extractable organics J. Gibson et al. 10.1016/j.scitotenv.2025.180146
12 citations as recorded by crossref.
- New method for simultaneous determination of dissolved organic carbon and its stable carbon isotope ratio in liquid samples: environmental applications F. Rampazzo et al. 10.1080/10256016.2022.2047040
- Ecohydrology of coastal aquifers in humid environments and implications of a drying climate M. Dyring et al. 10.1002/eco.2491
- Characterisation of groundwater dissolved organic matter using LC OCD: Implications for water treatment H. Rutlidge et al. 10.1016/j.watres.2020.116422
- Response of Nitrate Processing to Bio-labile Dissolved Organic Matter Supply Under Variable Oxygen Conditions in a Sandy Beach Seepage Face S. Jiang et al. 10.3389/fmars.2021.642143
- Development and Application of a Hydrogeochemical Model for the Groundwater Treatment Process in Waterworks R. Yan et al. 10.3390/w14132103
- Molecular Traits of Dissolved Organic Matter in the Subterranean Estuary of a High-Energy Beach: Indications of Sources and Sinks H. Waska et al. 10.3389/fmars.2021.607083
- Using water quality and isotope studies to inform research in chronic kidney disease of unknown aetiology endemic areas in Sri Lanka C. Nikagolla et al. 10.1016/j.scitotenv.2020.140896
- Large-scale study on groundwater dissolved organic matter reveals a strong heterogeneity and a complex microbial footprint A. Harjung et al. 10.1016/j.scitotenv.2022.158542
- Sources and Processing of Dissolved Organic Matter in a Microtidal Subterranean Estuary K. Amoako et al. 10.1007/s12237-025-01608-y
- Variations in the dissolved carbon concentrations of the shallow groundwater in a desert inland river basin J. Xu et al. 10.1016/j.jhydrol.2021.126774
- Assessing the Interaction Between Geologically Sourced Hydrocarbons and Thermal–Mineral Groundwater: An Overview of Methodologies V. Stavropoulou et al. 10.3390/w17131940
- Stable isotope method for tracing oil sands bitumen sources, differentiating δ13C in four carbon fractions in water and acid-extractable organics J. Gibson et al. 10.1016/j.scitotenv.2025.180146
Discussed (preprint)
Latest update: 17 Sep 2025
Short summary
Dissolved organic carbon within groundwater and processes controlling it remain largely unknown. The average groundwater concentration at this coastal site was 5 times higher than the global median, doubling with depth, but with no change in chromatographic character. The lack of oxygen limited the rate of organic matter processing, leading to enhanced preservation. Changes in coastal hydrology could lead to the flux of unreacted organic carbon.
Dissolved organic carbon within groundwater and processes controlling it remain largely unknown....
