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首页> 外文会议>NATO Advanced Research Workshop on Assessment and Management of Environmental Risks: Methods and Applications in Eastern European and Developing Countries Oct 1-4, 2000, Lisbon, Portugal >DEVELOPMENT OF A RISK BASED POLICY FOR CONTAMINATED SITES OF THE WALLOON REGION, BELGIUM
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DEVELOPMENT OF A RISK BASED POLICY FOR CONTAMINATED SITES OF THE WALLOON REGION, BELGIUM

机译：制定比利时瓦隆区污染场地的基于风险的政策

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Past industrial and economical activities accomplished on the territory of the Walloon Region (16.844 km~2, South of Belgium) have left over some 2,044 abandoned and (potentially) contaminated sites, covering a total area of 9,000 hectares. While the need to rehabilitate these sites - in view of enabling them to support new economical activities - has been identified, as early as in the late 1980's, improvements up to now are still globally insufficient. Appropriate tools for early decision making relying upon risk acceptance and in helping making objective choices, i.e. setting priorities in studies and required remedial actions, are lacking. This has been recently recognized as a crucial constraint, and has led to initiate the development of a specific risk based policy for contaminated soils and sites. Ongoing work has been split into three pools working in a concerted and integrated way, devoted to the setting up of a strategic plan, a technical- and a juridical frame of the future policy, respectively. In a general way, risk assessment is advanced as a key concept to define the investigation procedures and to help administrative decision makers. A general frame (figure 1) has been proposed for site management, corresponding to a - now widespread- 3 step procedure including a "pre-diagnosis" study, a preliminary soil investigation, and an in-depth investigation, respectively. Each of the three steps includes a specific risk sounded interpretation phase, leading to an administrative decision (either soil investigation necessity, preliminary risk acceptance, or risk acceptance/clean-up, respectively). Two specific tools have been developed in order to help the administration to decide on the site status and/or on the future actions needed: 1) A specific tool has been developed for decision makers to establish remedial- and investigation priorities. The inputs are the data collected in steps 1 and/or 2. The particular features of this ranking system are presented in point 2. 2) Within the framework of preliminary investigations, (step 2) a methodology for early decision making based on risk acceptance of contamination data, is currently under development. It constitutes an alternative between a typical normative approach (as used in the Flemish Region, North of Belgium) and a typical "site specific risk evaluation" approach (as used in France). The important features of the procedure are highlighted in point 3.
机译：过去在瓦隆地区（比利时南部16.844 km〜2）上完成的工业和经济活动留下了约2,044处废弃和（可能）受污染的场地，总面积为9,000公顷。尽管早在1980年代后期就已经确定了恢复这些场所的必要性（考虑到使它们能够支持新的经济活动），但迄今为止，全球范围内的改善仍然不够。缺乏依靠风险接受和用于做出客观选择的早期决策的适当工具，即确定研究的优先次序和所需的补救措施。最近，这被认为是至关重要的限制，并导致着手针对受污染的土壤和场地制定基于风险的特定政策。正在进行的工作已被分成三个小组，以协调一致的方式进行工作，分别致力于制定战略计划，未来政策的技术和法律框架。通常，风险评估是定义调查程序并帮助行政决策者的关键概念。已经提出了用于场所管理的通用框架（图1），该框架对应于-现在广泛使用的3步程序，分别包括“预诊断”研究，初步土壤调查和深入调查。这三个步骤中的每一个步骤都包含一个特定的风险解释阶段，从而导致一项行政决定（分别为土壤调查必要性，初步风险接受或风险接受/清理）。开发了两种特定的工具，以帮助主管部门决定现场状态和/或未来所需的行动：1）已开发出一种特定的工具，供决策者确定补救和调查的重点。输入是在步骤1和/或2中收集的数据。该排名系统的特定功能在点2中进行了说明。2）在初步调查的框架内，（步骤2）基于风险接受的早期决策方法污染数据，目前正在开发中。它是典型的规范方法（在比利时北部的佛兰德地区使用）和典型的“特定地点风险评估”方法（在法国使用）之间的替代方案。该程序的重​​要功能在第3点中突出显示。

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