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Published (Version of record)CC BY V4.0, Open Access
Published (Version of record)CC BY V4.0, Open
Journal article
Submarine groundwater discharge: A previously undocumented source of contaminants of emerging concern to the coastal ocean (Sydney, Australia)
Marine Pollution Bulletin, Vol.160, pp.1-12
11/2020
PMID: 32781267
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Source: InCites
Abstract
Submarine groundwater discharge (SGD) is rarely considered as a pathway for contaminants of emerging concern (CECs). Here, we investigated SGD as a source of CECs in Sydney Harbour, Australia. CEC detection frequencies based on presence/absence of a specific compound were >90% for caffeine, carbamazepine, and dioxins, and overall ranged from 25 to 100% in five studied embayments. SGD rates estimated from radium isotopes explained >80% of observed CEC inventories for one or more compounds (caffeine, carbamazepine, dioxins, sulfamethoxazole, fluoroquinolones and ibuprofen) in four out of the five embayments. Radium-derived residence times imply mixing is also an important process for driving coastal inventories of these persistent chemicals. Two compounds (ibuprofen and dioxins) were in concentrations deemed a high risk to the ecosystem. Overall, we demonstrate that SGD can act as a vector for CECs negatively impacting coastal water quality.
Details
- Title
- Submarine groundwater discharge: A previously undocumented source of contaminants of emerging concern to the coastal ocean (Sydney, Australia)
- Creators
- Trista McKenzie - Department of Earth Sciences, School of Ocean and Earth Science and Technology, University of Hawaiʻi at Mānoa, Honolulu, HI, USACeylena Holloway - Southern Cross UniversityHenrietta Dulai - Department of Earth Sciences, School of Ocean and Earth Science and Technology, University of Hawaiʻi at Mānoa, Honolulu, HI, USAJames P Tucker - Southern Cross UniversityRyo Sugimoto - Research Center for Marine Bioresources, Fukui Prefectural University, Fukui, JapanToshimi Nakajima - Research Center for Marine Bioresources, Fukui Prefectural University, Fukui, JapanKana Harada - Research Center for Marine Bioresources, Fukui Prefectural University, Fukui, JapanIsaac R Santos - Southern Cross University
- Publication Details
- Marine Pollution Bulletin, Vol.160, pp.1-12
- Publisher
- Elsevier Ltd
- Grant note
- This work was supported by the Australian Research Council [FT170100327], the Association for the Sciences of Limnology and Oceanography (ASLO) LOREX fellowship, NSF-OISE # 1831075 a Geological Society of America graduate student research grant, and the Achievement Rewards for College Scientists (ARCS) Foundation (Toby Lee ARCS Award in Earth Sciences).
- Identifiers
- 991012963498202368
- Copyright
- © 2020 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
- Academic Unit
- Faculty of Science and Engineering; School of Environment, Science and Engineering; National Marine Science Centre; Science
- Language
- English
- Resource Type
- Journal article