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Perception of uncertainties and quality in risk assessments by people working with risk assessments

机译：进行风险评估的人员对风险评估中的不确定性和质量的感知

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Background About 80,000 possible contaminated sites have been identified in Sweden. Assessing the risk posed by these sites and, if necessary, remediating the soil is associated with high costs. It is thus important that these assessments are reliable. A problem with current methods is that uncertainty and variability are often not accounted for. Different individuals have different physiology and behaviour and soil composition differs at various sites which can be considered in probabilistic methods. This requires tools that are user-friendly and cost and time-efficient. Information about the perception of risk assessments, uncertainty and tools wanted by people working with risk assessments is therefore needed. Aims The aim of this study is to investigate whether people working with risk assessments in practice find that these assessments are of sufficient quality, whether it is important to consider uncertainty and variability and which tools they may need to be able to consider these questions. Methods A questionnaire was sent to people working with the risk assessment of contaminated sites at government authorities and consultancies in Sweden. Results The data collected suggest that the majority of respondents find that risk assessment quality in general would need to be improved. Important factors to achieve this include a greater knowledge of the individuals involved in risk assessments, more financial resources, greater knowledge in form of new research and more time. The respondents also find it very important to characterize both uncertainty and variability, and to do this several respondents want more tools such as literature and databases with information about critical exposure factors and manuals. Conclusions According to personnel involved in the risk assessment of contaminated sites, the quality of the assessment should be enhanced and different tools would be useful to facilitate the characterization of uncertainty and variability.
机译：背景技术在瑞典，已经确定了约80,000个可能的污染场地。评估这些场所带来的风险，并在必要时进行土壤修复，这会带来高昂的成本。因此，重要的是这些评估必须可靠。当前方法的一个问题是不确定性和可变性通常没有被考虑。不同的个体具有不同的生理和行为，并且在不同地点的土壤组成也不同，可以采用概率方法来考虑。这就需要用户友好的工具，并且要节省成本和时间。因此，需要有关风险评估的感知，不确定性和从事风险评估的人员所需要的工具的信息。目的本研究的目的是调查在实践中进行风险评估的人员是否发现这些评估的质量足够，考虑不确定性和可变性是否重要以及他们可能需要使用哪些工具来考虑这些问题。方法向瑞典政府机关和咨询公司进行了污染场地风险评估工作的调查问卷。结果收集的数据表明，大多数受访者认为总体上需要提高风险评估质量。实现这一目标的重要因素包括对参与风险评估的个人有更多的了解，更多的财务资源，对新研究形式的更多了解以及更多的时间。被调查者还发现表征不确定性和可变性非常重要，为此，一些被调查者需要更多工具，例如文献和数据库，以及有关关键暴露因素和手册的信息。结论根据参与污染场地风险评估的人员的说法，评估的质量应得到提高，并且不同的工具将有助于促进不确定性和变异性的表征。

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