推导亚南极麦考瑞岛受燃料污染土壤的特定地点环境质量指导值。

IF 3 4区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Integrated Environmental Assessment and Management Pub Date : 2024-08-29 DOI:10.1002/ieam.4989

Catherine K. King, Jane Wasley, Jeremy Richardson

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引用次数: 0

摘要

自 1948 年在亚南极麦考瑞岛上建立研究站以来，与用于发电的柴油的储存、转移和使用有关的燃料泄漏事故时有发生。2009 年至 2016 年期间，澳大利亚政府实施了一项广泛的原地修复计划，利用添加营养物和空气喷射来加强石油产品的微生物降解。在此期间，进行了一系列生态毒理学评估，以更好地了解土壤中的燃料对本地生物群的影响及其敏感性。本研究将这些生态毒理学数据编入物种敏感性分布（SSD），以确定麦考瑞岛土壤中燃料的环境质量指导值（EQGV）。SSD 模型包括通过专家判断法选出的 13 个临界效应浓度 (CEC)。这些数据来自功能和群落测试，以及使用微生物、植物和无脊椎动物进行的传统单一物种毒性测试，代表了该岛受污染地区土壤中不同降解阶段（从新鲜到 18 个月）的碳含量范围（~3%-48%）和燃料成分。对于 SSD 中的南极混合柴油，得出的保护浓度 (PC80) 为 97 mg/kg TPH C9-C40（95% CI 24-283），并建议将其作为特定场地的适当 EQGV 值和基础设施附近站点区域的潜在修复目标。此外，还为站区外具有较高保护价值的区域提供了更为保守的 PC 值。这些 EQGV 是首次针对亚南极和南极地区的燃料制定的。它们将用于为麦格理岛正在进行的环境管理提供信息，而且很可能适合并建议在整个亚南极地区更广泛地使用。Integr Environ Assess Manag 2024;00:1-13。© 2024 澳大利亚联邦。综合环境评估与管理》由 Wiley Periodicals LLC 代表环境毒理学与化学学会 (SETAC) 出版。

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Derivation of site-specific environmental quality guideline values for fuel-contaminated soils on sub-Antarctic Macquarie Island

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Derivation of site-specific environmental quality guideline values for fuel-contaminated soils on sub-Antarctic Macquarie Island

Accidental fuel spills associated with the storage, transfer, and use of diesel fuel for power generation have occurred on sub-Antarctic Macquarie Island since the establishment of the island's research station in 1948. An extensive in situ remediation program was implemented by the Australian government from 2009 to 2016 that used nutrient addition and air sparging to enhance the microbial degradation of petroleum products. During this period, a range of ecotoxicological assessments were conducted to better understand the impacts of fuel in soils on native biota and their sensitivity. This study compiles this ecotoxicological data into a species sensitivity distribution (SSD) to establish environmental quality guideline values (EQGVs) for fuels in soils on Macquarie Island. The SSD model includes 13 critical effect concentrations (CECs) selected using an expert judgment approach. These include data from functional and community-based tests as well as traditional single-species toxicity tests using microbes, plants, and invertebrates and representing the range of carbon content (~3%–48%) and fuel composition at various stages of degradation (from fresh to 18 months aged) in soils as occurs at contaminated sites on the island. A protective concentration (PC80) of 97 mg/kg TPH C9–C40 (95% CI 24–283) was derived for special Antarctic blend diesel from the SSD and is recommended as an appropriate site-specific EQGV and potential remediation target for the immediate station area in the vicinity of infrastructure. More conservative PC values are also provided for areas with higher conservation values outside the station footprint. These EQGVs are the first to be produced for fuels in the sub-Antarctic and Antarctic regions. They will be used to inform ongoing environmental management on Macquarie Island and are likely suitable and recommended for use more broadly across the sub-Antarctic. Integr Environ Assess Manag 2024;20:2334–2346. © 2024 Commonwealth of Australia. Integrated Environmental Assessment and Management published by Wiley Periodicals LLC on behalf of Society of Environmental Toxicology & Chemistry (SETAC).

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来源期刊

Integrated Environmental Assessment and Management ENVIRONMENTAL SCIENCESTOXICOLOGY&nbs-TOXICOLOGY

CiteScore

5.90

自引率

6.50%

发文量

156

期刊介绍： Integrated Environmental Assessment and Management (IEAM) publishes the science underpinning environmental decision making and problem solving. Papers submitted to IEAM must link science and technical innovations to vexing regional or global environmental issues in one or more of the following core areas: Science-informed regulation, policy, and decision making Health and ecological risk and impact assessment Restoration and management of damaged ecosystems Sustaining ecosystems Managing large-scale environmental change Papers published in these broad fields of study are connected by an array of interdisciplinary engineering, management, and scientific themes, which collectively reflect the interconnectedness of the scientific, social, and environmental challenges facing our modern global society: Methods for environmental quality assessment; forecasting across a number of ecosystem uses and challenges (systems-based, cost-benefit, ecosystem services, etc.); measuring or predicting ecosystem change and adaptation Approaches that connect policy and management tools; harmonize national and international environmental regulation; merge human well-being with ecological management; develop and sustain the function of ecosystems; conceptualize, model and apply concepts of spatial and regional sustainability Assessment and management frameworks that incorporate conservation, life cycle, restoration, and sustainability; considerations for climate-induced adaptation, change and consequences, and vulnerability Environmental management applications using risk-based approaches; considerations for protecting and fostering biodiversity, as well as enhancement or protection of ecosystem services and resiliency.