Sampling Strategies for Accurate Hazard Mapping of Noise and Other Hazards Using Short-Duration Measurements.
Sampling Strategies for Accurate Hazard Mapping of Noise and Other Hazards Using Short-Duration Measurements.
复制标题
使用短持续时间测量准确绘制噪声和其他危害的采样策略。
DOI：
10.1093/annweh/wxw025
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发表时间：
2017
影响因子：
2.6
通讯作者：
Peters,ThomasM
中科院分区：
文献类型：
--
作者：
Koehler,KirstenA;Zhu,Jun;Wang,Haonan;Peters,ThomasM
危害绘图是一种有效的方式来描述空间变异的危害强度获得的设施平面图上的直接阅读仪器。然而，时间变异性影响地图准确性的程度是未知的，并指导采样策略，以尽量减少地图的偏见是缺乏的。在这项研究中，我们评估了模拟源和采样策略在一个假设的设施的危害地图的准确性。危害图是从高、中、低空间分辨率的采样数据中产生的，有重复和无重复，并使用几种地图比较指标与参考时间加权平均危害图进行比较。与“真实世界”的绘图数据集一致，模拟表明，增加重复次数比增加采样空间分辨率更有效地提高了从采样数据产生的危害图与时间加权平均危害图的总体可比性。然而，如果对准确捕获源附近的峰值曝光感兴趣，则需要增加测量的空间分辨率，特别是近源。从这些结果中，我们制定了指导方针，使用的时间变异性的初步评估的大型和间歇性的来源，以告知空间分辨率和需要复制的措施，以尽量减少灾害地图的偏见。
Hazard mapping is an effective way to depict spatial variability in hazard intensity obtained with direct-reading instruments on a facility floor plan. However, the extent to which temporal variability affects map accuracy is unknown, and guidance on sampling strategies to minimize map bias is lacking. In this study, we evaluated the accuracy of hazard maps produced for simulated sources and sampling strategies in a hypothetical facility. Hazard maps were produced from sampled data at high, mid, and low spatial resolution and with and without replicates and compared to a reference time-weighted average hazard map using several map comparison metrics. In agreement with ‘real-world’ mapping datasets, the simulation showed that increasing the number of replicates improved the overall comparability of the hazard map produced from the sampled data with the time-weighted average hazard map more efficiently than increasing the sampling spatial resolution. However, if accurately capturing peak exposures near sources is of interest, increasing the spatial resolution of the measurements, particularly near sources, is needed. From these results, we formulated guidelines to use the preliminary assessment of the temporal variability of large and intermittent sources to inform the spatial resolution and need for replicate measures to minimize the bias in hazard maps.