Division of Life Sciences, Consortium for Risk Evaluation with Stakeholder Participation (CRESP), and Environmental and Occupational Health Sciences Institute, Rutgers University, Piscataway, NJ 08854, USA.
Environ Res. 2019 May;172:586-595. doi: 10.1016/j.envres.2019.02.036. Epub 2019 Feb 23.
Remediation of lands contaminated with radionuclides and hazardous chemicals provides an ongoing challenge for many countries. It is particularly problematic for remediation of old industrial sites remaining from World War II and the Cold War. Remediating and restoring large sites is often costly, time-consuming, and involves complex planning and sequencing, as well as consideration of future land use policies. The goal of remediation is to reduce contamination, reduce risk to humans and the environment, and restore land to productive land uses, and ultimately, to sustainability. Often reducing risk to people takes precedence over protecting ecological resources in overall planning, characterization, and execution of remediation strategies. This paper examines when and how stakeholders, including anyone interested and affected by remediation on ecological resources, can become involved in the planning, decision-making, and implementation of remediation. There is a formal process under federal law (e.g. CERCLA) in the US for examining risk to resources, including indicator species. However, there are other informal points during the cleanup process when managers should consider the value of ecological resources, the public may express their concerns for particular ecological resources, and ecologists may provide data and expert advice early in the process as critical decisions are being made about remediation that impact ecological resources. The framework presented in this paper for increasing sustainability of ecological resources has three periods of intervention 1) major decision points, 2) process interdiction points, and 3) remediation action points. Major decision points include site and problem identification, regional ecological resource and local land use practice determination, remediation goals and options determination, and other local issues. Interdiction points include examining remediation options, and in-depth assessments of ecological resources on-site. Remediation action points are aimed at reducing risk to ecological resources during remediation, and include defining the remediation site and buffer, understanding the effects of timing and sequencing of remediation, education of all remediation personnel, and specific suggestions for reducing risk during active remediation. While this framework was developed for Department of Energy remediation sites, it is applicable to brownfields and other contaminated lands world-wide. The overall goal is to provide interested and affected parties with a framework for protecting and enhancing ecological resources during the planning and execution of remediation on contaminated lands.
修复受放射性核素和有害化学物质污染的土地,是许多国家面临的一项持续挑战。对于修复二战和冷战遗留下来的旧工业场地而言,这个问题尤为突出。修复和恢复大型场地往往成本高昂、耗时漫长,并且需要进行复杂的规划和排序,同时还需要考虑未来的土地使用政策。修复的目标是减少污染,降低人类和环境风险,并将土地恢复到生产性用途,最终实现可持续性。在整体规划、特征描述和修复策略的执行过程中,通常会优先考虑降低对人类的风险,而不是保护生态资源。本文探讨了利益相关者(包括对生态资源修复感兴趣和受其影响的任何人)何时以及如何参与规划、决策和执行修复的问题。在美国,联邦法律(例如《综合环境反应、赔偿和责任法案》)规定了审查资源风险(包括指示物种)的正式程序。然而,在清理过程中,还有其他非正式的阶段,例如管理者应考虑生态资源的价值,公众可能会对特定的生态资源表示关注,以及生态学家可以在做出影响生态资源的修复决策的早期提供数据和专家建议。本文提出的增加生态资源可持续性的框架有三个干预期:1)重大决策点,2)过程干预点,3)修复行动点。重大决策点包括场地和问题识别、区域生态资源和当地土地使用实践确定、修复目标和方案确定以及其他当地问题。干预点包括审查修复方案和现场生态资源的深入评估。修复行动点旨在减少修复过程中对生态资源的风险,包括确定修复场地和缓冲区、了解修复时间和顺序的影响、对所有修复人员进行教育,以及在积极修复期间提出具体的降低风险建议。虽然该框架是为美国能源部的修复场地制定的,但它适用于世界各地的棕地和其他受污染土地。总体目标是为利益相关者和受影响方提供一个框架,以在规划和执行受污染土地的修复时保护和增强生态资源。