دورية أكاديمية
An approach to assess potential environmental mercury release, food web bioaccumulation, and human dietary methylmercury uptake from decommissioning offshore oil and gas infrastructure.
| العنوان: | An approach to assess potential environmental mercury release, food web bioaccumulation, and human dietary methylmercury uptake from decommissioning offshore oil and gas infrastructure. |
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| المؤلفون: | von Hellfeld R; School of Biological Sciences, University of Aberdeen, School of Biological Sciences, Aberdeen, UK; National Decommissioning Centre, Ellon, UK. Electronic address: rebecca@vonhellfeld.de., Gade C; School of Biological Sciences, University of Aberdeen, School of Biological Sciences, Aberdeen, UK; National Decommissioning Centre, Ellon, UK., Koppel DJ; Curtin Oil and Gas Innovation Centre, Faculty of Science and Engineering, Curtin University, Perth, WA, Australia; Australian Institute of Marine Science, Perth, Australia., Walters WJ; Ken and Mary Alice Lindquist Department of Nuclear Engineering, Pennsylvania State University, PA, USA., Kho F; Curtin Oil and Gas Innovation Centre, Faculty of Science and Engineering, Curtin University, Perth, WA, Australia; Curtin Corrosion Centre, Curtin University, Perth, WA, Australia., Hastings A; School of Biological Sciences, University of Aberdeen, School of Biological Sciences, Aberdeen, UK; National Decommissioning Centre, Ellon, UK. |
| المصدر: | Journal of hazardous materials [J Hazard Mater] 2023 Jun 15; Vol. 452, pp. 131298. Date of Electronic Publication: 2023 Mar 27. |
| نوع المنشور: | Journal Article; Research Support, Non-U.S. Gov't |
| اللغة: | English |
| بيانات الدورية: | Publisher: Elsevier Country of Publication: Netherlands NLM ID: 9422688 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1873-3336 (Electronic) Linking ISSN: 03043894 NLM ISO Abbreviation: J Hazard Mater Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: Amsterdam : Elsevier, |
| مواضيع طبية MeSH: | Methylmercury Compounds*/metabolism , Mercury*/analysis , Water Pollutants, Chemical*/analysis, Humans ; Animals ; Food Chain ; Bioaccumulation ; Aquatic Organisms/metabolism ; Environmental Monitoring/methods ; Fishes/metabolism |
| مستخلص: | Subsea pipelines carrying well fluids from hydrocarbon fields accumulate mercury. If the pipelines (after cleaning and flushing) are abandoned in situ, their degradation may release residual mercury into the environment. To justify pipeline abandonment, decommissioning plans include environmental risk assessments to determine the potential risk of environmental mercury. These risks are informed by environmental quality guideline values (EQGVs) governing concentrations in sediment or water above which mercury toxicity may occur. However, these guidelines may not consider e.g., the bioaccumulation potential of methylated mercury. Therefore, EQGVs may not protect humans from exposure if applied as the sole basis for risk assessments. This paper outlines a process to assess the EQGVs' protectiveness from mercury bioaccumulation, providing preliminary insights to questions including how to (1) determine pipeline threshold concentrations, (2) model marine mercury bioaccumulation, and (3) determine exceedance of the methylmercury tolerable weekly intake (TWI) for humans. The approach is demonstrated with a generic example using simplifications to describe mercury behaviour and a model food web. In this example, release scenarios equivalent to the EQGVs resulted in increased marine organism mercury tissue concentrations by 0-33 %, with human dietary methylmercury intake increasing 0-21 %. This suggests that existing guidelines may not be protective of biomagnification in all circumstances. The outlined approach could inform environmental risk assessments for asset-specific release scenarios but must be parameterised to reflect local environmental conditions when tailored to local factors. Competing Interests: Declaration of Competing Interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Some authors have undertaken research funded by the oil and gas industry. These funding sources have not influenced the approach or conclusions of this study. The authors have no further potential conflicts of interest to disclose. (Copyright © 2023 The Authors. Published by Elsevier B.V. All rights reserved.) |
| فهرسة مساهمة: | Keywords: Environmental mercury release; Environmental risk assessment; Minamata convention; Offshore oil and gas decommissioning plans; Threshold determination |
| المشرفين على المادة: | 0 (Methylmercury Compounds) FXS1BY2PGL (Mercury) 0 (Water Pollutants, Chemical) |
| تواريخ الأحداث: | Date Created: 20230330 Date Completed: 20230501 Latest Revision: 20230502 |
| رمز التحديث: | 20231215 |
| DOI: | 10.1016/j.jhazmat.2023.131298 |
| PMID: | 36996541 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1873-3336 |
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| DOI: | 10.1016/j.jhazmat.2023.131298 |